90-day guarantee on the 3-bottle supply Order Flexcin

Official Site · Extra Strength CM8™ Formula

Daily support for joint comfort and flexibility.

Flexcin is built around CM8™ (cetyl myristoleate) — our signature ingredient — to help maintain healthy joint mobility as part of your everyday routine.

Choose your supply Buy 2, Get 1 Free · Free shipping · 90-day guarantee
4.6/5 1,590 verified reviews
Trusted by thousands of happy customers
Buy 2, Get 1 Free Free shipping on 3 bottles (continental US) 90-day guarantee on the 3-bottle supply Made in the USA Secure checkout

Choose your supply

Flexcin Extra Strength with CM8™

Our highest-concentration CM8™ formula. Each bottle is 120 capsules — a 30-day supply at the label serving of 4 capsules a day. The 3-bottle supply ships free in the continental US and is covered by our 90-day money-back guarantee.

Try It

1 Bottle

30-day supply · not covered by the 90-day guarantee

Flexcin Extra Strength, 1 bottle
$59.95

$59.95 per bottle

Get 1 Bottle — $59.95
  • 120 capsules · 30 daily servings
  • Shipping calculated at checkout

Prices in USD. Buy 2, Get 1 Free and free continental-US shipping apply to the 3-bottle Extra Strength supply; the discount is applied automatically at checkout. The 90-day money-back guarantee covers your first order of the 3-bottle (90-day) supply and refunds the purchase price; original shipping, where charged, is not refunded. See the refund policy for full terms. Flexcin is a dietary supplement — follow the directions on the label.

What Flexcin is for

Everyday support for the joints you rely on.

Flexcin is a dietary supplement taken daily. It's made to support normal joint function — not to treat any condition.

Smiling woman stretching her arms upward at home

Joint comfort

Made to support day-to-day comfort in active joints as part of a consistent routine.

Active senior woman exercising with hand weights

Flexibility & mobility

Made to help maintain healthy range of motion so you can keep doing what you enjoy.

Woman in a robe enjoying a morning cup of coffee

A daily habit

A simple addition to your morning routine, built to be taken consistently over time.

CM8™
cetyl myristoleate

The signature ingredient

What makes Flexcin, Flexcin.

CM8™ is Flexcin's own form of cetyl myristoleate — the ingredient the formula has been built around since the brand began. It's the reason customers come back to Flexcin specifically rather than a generic joint supplement.

Alongside CM8™, every capsule includes glucosamine, MSM, and collagen — familiar joint-support ingredients in one daily formula.

In their words

What long-time customers say.

Real, verified customer experiences — shown exactly as submitted. Individual results are not guaranteed and vary from person to person.

“I’m a senior golf pro, and I’ve used Flexcin for 20 years to keep mobile. When I stop, I get stiff in the joints.”

Joseph Q. · Verified Customer

“I’ve seen real improvement in joint comfort and flexibility. It’s not a quick fix, but with consistent use it works well for long-term joint support.”

Shiyi H. · Verified Customer

“I’ve been taking Flexcin once a day for at least 15 years.”

Susan R. · Verified Customer

“I lift weights six days a week and do jiu-jitsu. This is the glucosamine that’s helped me the most — after a few weeks I’ve been handling the stress on my joints much better.”

Corey T. · Verified Customer

Testimonials reflect individual experiences. Results are not guaranteed, may not be typical, and vary from person to person.

Try the 90-day supply risk-free.

Order the 3-bottle supply and give it an honest run. If Flexcin isn't right for you, return the empty bottles within 90 days of purchase for a refund of the purchase price — no complicated hoops. We'd rather earn a long-term customer than make a one-time sale.

Applies to your first order of the 3-bottle supply. Orders that shipped free are refunded in full; where shipping was charged, the original shipping cost is not refunded.

Read our full 90-day refund policy →

Good to know

Questions, answered.

Flexcin is a daily dietary supplement made with CM8™ (cetyl myristoleate), made to support joint comfort and flexibility as part of a regular routine.

CM8™ is Flexcin's own form of cetyl myristoleate — the signature ingredient the formula is built around. CM8™ is a trademark of Aurum Health LLC.

Extra Strength is Flexcin’s highest-concentration formula — the same ingredients as our daily formula with more CM8™ per serving. It’s the option most new customers start with.

Take 4 capsules daily with water and/or a meal, or 2 in the morning and 2 in the evening. Flexcin is intended to be taken daily and consistently — most long-term customers make it part of their morning routine.

Flexcin is designed for consistent daily use over time rather than as a quick fix. That's why the 3-bottle supply is the one we guarantee for 90 days — you can give it a full run and still be covered.

The 90-day money-back guarantee applies to the 3-bottle (90-day) supply. If you're not satisfied, return it within 90 days of purchase for a refund. Single bottles are not covered. See full details in our refund policy.

Yes. As with any dietary supplement, talk to your healthcare provider before starting, especially if you are pregnant, nursing, taking medication, or managing a health condition.

Make joint care part of your day.

Buy 2, Get 1 Free on the 3-bottle supply — free shipping in the continental US and a 90-day money-back guarantee.

Choose your supply

The fine print

Policies

Refund & 90-day guarantee policy

90-Day Money-Back Guarantee

Our guarantee applies to your first order of the Flexcin 3-bottle (90-day) supply. Single bottles and subsequent orders are not covered.

If you're not satisfied for any reason, contact us within 90 days of your purchase date and return the empty bottles for a full refund of the purchase price. Orders that shipped free are refunded in full; where shipping was charged, the original shipping cost is not refunded.

To start a return, email customercare@flexcin.com or call (800) 505-0575 with your order number. Refunds are issued to the original payment method within 5–7 business days of receiving your return.

Shipping policy

Shipping Policy

Processing Time

  • Orders are typically processed within 1–2 business days after payment is received.

  • Orders placed on weekends or holidays will be processed the next business day.

Shipping Methods & Delivery Times

  • Standard Shipping (U.S.): 3–7 business days

  • Expedited Shipping (U.S.): 2–3 business days

  • International Shipping: Delivery times vary by destination and customs processing. Most orders arrive within 7–21 business days.

Shipping Rates

  • Rates are calculated at checkout based on order weight, size, and destination.

  • Free shipping promotions (when offered) will automatically apply at checkout.

International Orders

  • We ship worldwide, with the exception of countries that restrict certain supplement ingredients (e.g., Australia due to Cetyl Myristoleate restrictions).

  • Customers are responsible for any customs duties, taxes, or import fees charged by their country.

Order Tracking

  • Once your order ships, you will receive a confirmation email with tracking information.

  • Tracking updates may take up to 24 hours to appear.

Address Accuracy

  • Please ensure your shipping address is correct at checkout. Flexcin is not responsible for delays or lost shipments due to incorrect or incomplete addresses.

Lost or Damaged Packages

  • If your package is lost or arrives damaged, please contact our Customer Care team at 800-505-0575 or customercare@flexcin.com within 7 days of delivery. We’ll work quickly to resolve the issue.

Questions?
If you have any questions about your order or shipping, please reach out to our Customer Care team — we’re happy to help.

Privacy policy

Last updated: October 30, 2026

Flexcin International, Inc. operates this store and website, including all related information, content, features, tools, products and services, in order to provide you, the customer, with a curated shopping experience (the "Services"). Flexcin International, Inc. is powered by Shopify, which enables us to provide the Services to you. This Privacy Policy describes how we collect, use, and disclose your personal information when you visit, use, or make a purchase or other transaction using the Services or otherwise communicate with us. If there is a conflict between our Terms of Service and this Privacy Policy, this Privacy Policy controls with respect to the collection, processing, and disclosure of your personal information.

Please read this Privacy Policy carefully. By using and accessing any of the Services, you acknowledge that you have read this Privacy Policy and understand the collection, use, and disclosure of your information as described in this Privacy Policy.

Personal Information We Collect or Process

When we use the term "personal information," we are referring to information that identifies or can reasonably be linked to you or another person. Personal information does not include information that is collected anonymously or that has been de-identified, so that it cannot identify or be reasonably linked to you. We may collect or process the following categories of personal information, including inferences drawn from this personal information, depending on how you interact with the Services, where you live, and as permitted or required by applicable law:

  • Contact details including your name, address, billing address, shipping address, phone number, and email address.
  • Financial information including credit card, debit card, and financial account numbers, payment card information, financial account information, transaction details, form of payment, payment confirmation and other payment details.
  • Account information including your username, password, security questions, preferences and settings.
  • Transaction information including the items you view, put in your cart, add to your wishlist, or purchase, return, exchange or cancel and your past transactions.
  • Communications with us including the information you include in communications with us, for example, when sending a customer support inquiry.
  • Device information including information about your device, browser, or network connection, your IP address, and other unique identifiers.
  • Usage information including information regarding your interaction with the Services, including how and when you interact with or navigate the Services.

Personal Information Sources

We may collect personal information from the following sources:

  • Directly from you including when you create an account, visit or use the Services, communicate with us, or otherwise provide us with your personal information;
  • Automatically through the Services including from your device when you use our products or services or visit our websites, and through the use of cookies and similar technologies;
  • From our service providers including when we engage them to enable certain technology and when they collect or process your personal information on our behalf;
  • From our partners or other third parties.

How We Use Your Personal Information

Depending on how you interact with us or which of the Services you use, we may use personal information for the following purposes:

  • Provide, Tailor, and Improve the Services. We use your personal information to provide you with the Services, including to perform our contract with you, to process your payments, to fulfill your orders, to remember your preferences and items you are interested in, to send notifications to you related to your account, to process purchases, returns, exchanges or other transactions, to create, maintain and otherwise manage your account, to arrange for shipping, to facilitate any returns and exchanges, to enable you to post reviews, and to create a customized shopping experience for you, such as recommending products related to your purchases. This may include using your personal information to better tailor and improve the Services.
  • Marketing and Advertising. We use your personal information for marketing and promotional purposes, such as to send marketing, advertising and promotional communications by email, text message or postal mail, and to show you online advertisements for products or services on the Services or other websites, including based on items you previously have purchased or added to your cart and other activity on the Services.
  • Security and Fraud Prevention. We use your personal information to authenticate your account, to provide a secure payment and shopping experience, detect, investigate or take action regarding possible fraudulent, illegal, unsafe, or malicious activity, protect public safety, and to secure our services. If you choose to use the Services and register an account, you are responsible for keeping your account credentials safe. We highly recommend that you do not share your username, password or other access details with anyone else.
  • Communicating with You. We use your personal information to provide you with customer support, to be responsive to you, to provide effective services to you and to maintain our business relationship with you.
  • Legal Reasons. We use your personal information to comply with applicable law or respond to valid legal process, including requests from law enforcement or government agencies, to investigate or participate in civil discovery, potential or actual litigation, or other adversarial legal proceedings, and to enforce or investigate potential violations of our terms or policies.

How We Disclose Personal Information

In certain circumstances, we may disclose your personal information to third parties for legitimate purposes subject to this Privacy Policy. Such circumstances may include:

  • With Shopify, vendors and other third parties who perform services on our behalf (e.g. IT management, payment processing, data analytics, customer support, cloud storage, fulfillment and shipping).
  • With business and marketing partners to provide marketing services and advertise to you. For example, we use Shopify to support personalized advertising with third-party services based on your online activity with different merchants and websites. Our business and marketing partners will use your information in accordance with their own privacy notices. Depending on where you reside, you may have a right to direct us not to share information about you to show you targeted advertisements and marketing based on your online activity with different merchants and websites. You can exercise your rights to opt-out of those uses here .
  • When you direct, request us or otherwise consent to our disclosure of certain information to third parties, such as to ship you products or through your use of social media widgets or login integrations.
  • With our affiliates or otherwise within our corporate group.
  • In connection with a business transaction such as a merger or bankruptcy, to comply with any applicable legal obligations (including to respond to subpoenas, search warrants and similar requests), to enforce any applicable terms of service or policies, and to protect or defend the Services, our rights, and the rights of our users or others.

Relationship with Shopify

The Services are hosted by Shopify, which collects and processes personal information about your access to and use of the Services in order to provide and improve the Services for you. Information you submit to the Services will be transmitted to and shared with Shopify as well as third parties that may be located in countries other than where you reside, in order to provide and improve the Services for you. In addition, to help protect, grow, and improve our business, we use certain Shopify enhanced features that incorporate data and information obtained from your interactions with our Store, along with other merchants and with Shopify. To provide these enhanced features, Shopify may make use of personal information collected about your interactions with our store, along with other merchants, and with Shopify. In these circumstances, Shopify is responsible for the processing of your personal information, including for responding to your requests to exercise your rights over use of your personal information for these purposes. To learn more about how Shopify uses your personal information and any rights you may have, you can visit the Shopify Consumer Privacy Policy . Depending on where you live, you may exercise certain rights with respect to your personal information here Shopify Privacy Portal Link.

Third Party Websites and Links

The Services may provide links to websites or other online platforms operated by third parties. If you follow links to sites not affiliated or controlled by us, you should review their privacy and security policies and other terms and conditions. We do not guarantee and are not responsible for the privacy or security of such sites, including the accuracy, completeness, or reliability of information found on these sites. Information you provide on public or semi-public venues, including information you share on third-party social networking platforms may also be viewable by other users of the Services and/or users of those third-party platforms without limitation as to its use by us or by a third party. Our inclusion of such links does not, by itself, imply any endorsement of the content on such platforms or of their owners or operators, except as disclosed on the Services.

Children's Data

The Services are not intended to be used by children, and we do not knowingly collect any personal information about children under the age of majority in your jurisdiction. If you are the parent or guardian of a child who has provided us with their personal information, you may contact us using the contact details set out below to request that it be deleted.As of the Effective Date of this Privacy Policy, we do not have actual knowledge that we "share" or "sell" (as those terms are defined in applicable law) personal information of individuals under 16 years of age.

Security and Retention of Your Information

Please be aware that no security measures are perfect or impenetrable, and we cannot guarantee "perfect security." In addition, any information you send to us may not be secure while in transit. We recommend that you do not use unsecure channels to communicate sensitive or confidential information to us.

How long we retain your personal information depends on different factors, such as whether we need the information to maintain your account, to provide you with Services, comply with legal obligations, resolve disputes or enforce other applicable contracts and policies.

Your Rights and Choices

Depending on where you live, you may have some or all of the rights listed below in relation to your personal information. However, these rights are not absolute, may apply only in certain circumstances and, in certain cases, we may decline your request as permitted by law.

  • Right to Access / Know. You may have a right to request access to personal information that we hold about you.
  • Right to Delete. You may have a right to request that we delete personal information we maintain about you.
  • Right to Correct. You may have a right to request that we correct inaccurate personal information we maintain about you.
  • Right of Portability. You may have a right to receive a copy of the personal information we hold about you and to request that we transfer it to a third party, in certain circumstances and with certain exceptions.
  • Right to Opt out of Sale or Sharing for Targeted Advertising. Depending on where you reside, you may have a right to opt out of the "sale" or "share" of your personal information or to opt out of the processing of your personal information for purposes considered to be "targeted advertising", as defined in applicable privacy laws. You can exercise your rights to opt-out of those uses here. Please note that if you visit our website with the Global Privacy Control opt-out preference signal enabled, depending on where you are, we will automatically treat this as a request to opt-out for the device and browser that you use to visit the website. If we are able to associate the device sending the signal to a Shopify account, we will apply the opt out request to the account as well. To learn more about Global Privacy Control, you can visit https://globalprivacycontrol.org/. Other than the Global Privacy Control, we do not recognize other "Do Not Track" signals that may be sent from your web browser or device.
  • Managing Communication Preferences. We may send you promotional emails, and you may opt out of receiving these at any time by using the unsubscribe option displayed in our emails to you. If you opt out, we may still send you non-promotional emails, such as those about your account or orders that you have made.

If you reside in the UK or European Economic Area, and subject to exceptions and limitations provided by local law, you may exercise the following rights in addition to the rights outlined above:

  • Objection to Processing and Restriction of Processing: You may have the right to ask us to stop or restrict our processing of personal information for certain purposes.
  • Withdrawal of Consent: Where we rely on consent to process your personal information, you have the right to withdraw this consent. If you withdraw your consent, this will not affect the lawfulness of any processing based on your consent before its withdrawal.

You may exercise any of these rights where indicated on the Services or by contacting us using the contact details provided below. To learn more about how Shopify uses your personal information and any rights you may have, including rights related to data processed by Shopify, you can visit https://privacy.shopify.com/en.

We will not discriminate against you for exercising any of these rights. We may need to verify your identity before we can process your requests, as permitted or required under applicable law. In accordance with applicable laws, you may designate an authorized agent to make requests on your behalf to exercise your rights. Before accepting such a request from an agent, we will require that the agent provide proof you have authorized them to act on your behalf, and we may need you to verify your identity directly with us. We will respond to your request in a timely manner as required under applicable law.

Complaints

If you have complaints about how we process your personal information, please contact us using the contact details provided below. Depending on where you live, you may have the right to appeal our decision by contacting us using the contact details set out below, or lodge your complaint with your local data protection authority. For the EEA, you can find a list of the responsible data protection supervisory authorities here.

International Transfers

Please note that we may transfer, store and process your personal information outside the country you live in.

If we transfer your personal information out of the European Economic Area or the United Kingdom, we will rely on recognized transfer mechanisms like the European Commission's Standard Contractual Clauses, or any equivalent contracts issued by the relevant competent authority of the UK, as relevant, unless the data transfer is to a country that has been determined to provide an adequate level of protection.

Changes to This Privacy Policy

We may update this Privacy Policy from time to time, including to reflect changes to our practices or for other operational, legal, or regulatory reasons. We will post the revised Privacy Policy on this website, update the "Last updated" date and provide notice as required by applicable law.

Contact

Should you have any questions about our privacy practices or this Privacy Policy, or if you would like to exercise any of the rights available to you, please email us at admin@flexcin.com. You can find our other contact details on our contact information policy. For the purpose of applicable data protection laws, we are the data controller of your personal information.

Terms of service

Terms and Conditions for Use of Website

ATTENTION: PLEASE READ THESE TERMS AND CONDITIONS OF USE CAREFULLY BEFORE USING THIS WEBSITE. USING THIS WEBSITE INDICATES THAT YOU ACCEPT THESE TERMS AND CONDITIONS OF USE. IF YOU DO NOT ACCEPT THESE TERMS AND CONDITIONS OF USE, PLEASE DO NOT USE THIS WEBSITE.

Flexcin International, Inc. reserves the right, at its discretion, to change, modify, add, or remove portions of these Terms and Conditions of Use at any time by updating this posting. Please check these terms periodically for changes. Your continued use of the website following the posting of changes to these terms will mean you accept those changes and they apply to you. These Terms and Conditions of Use apply to every website maintained by Flexcin International, Inc.

Use of this Site

Flexcin International, Inc. maintains this website and its content for your personal information, entertainment and education. You may view and download material displayed on the website for your personal, non-commercial use only, provided you retain all copyright, trademark and other proprietary notices contained within the material. Except as specifically provided, you may not distribute, retransmit, re-publish, reuse, re-post, or use the contents of this website for public or commercial purposes, without Flexcin’s prior written permission. You may not alter or interfere with the content or functioning of the website, or “mirror” any content contained on this website or any other server. The materials at this website are copyrighted and any unauthorized use may violate copyright laws, trademark laws, the laws of privacy and publicity, and communications regulations and statutes. If you breach any of these Terms or Conditions of Use, your right to use this website will terminate automatically. Upon termination, you must destroy all materials obtained from this site and all copies thereof, whether made in accordance with these terms or otherwise.

Your Communications with Flexcin

Flexcin welcomes your comments. However, please do not send Flexcin any creative ideas, original materials, or suggestions other than those we have specifically requested. Any communication or material you transmit to Flexcin or post to the website by electronic mail or otherwise, including any personal data, questions or answers, comments, suggestions, or the like (collectively, the “Submissions”), will be deemed, and shall remain, the property of Flexcin International, Inc. The Submissions shall be treated as non-confidential, and may be disseminated or used by Flexcin or its affiliates for any purpose including, but not limited to, developing, manufacturing or marketing products. Anything you transmit or post may be used by Flexcin or its affiliates for any purpose, including but not limited to product or service solicitations, reproduction, disclosure, transmission publication, and broadcast. You may not post or transmit to or from the website any unlawful, threatening, libelous, defamatory, obscene, scandalous, inflammatory, pornographic, or profane material, or any other material that could give rise to any civil or criminal liability under the law.

Disclaimer of Warranty

Flexcin does not warrant or represent that the content of the website is accurate, or that the website’s operation will be error free or uninterrupted, or that it will be free of viruses or other harmful components. You use the website at your own risk. Flexcin does not warrant that your use of materials displayed on this website will not infringe rights of third parties not owned or affiliated with Flexcin. Information published at this website may refer to products, programs or services that are not available in your country. Without limiting the foregoing, the website is provided “AS IS” without warranty of any kind, either express or implied, including, but not limited to, the implied warranties of merchantability, fitness for a particular purpose, or non-infringement. Some jurisdictions may not allow exclusion of implied warranties, so some of the above exclusions may not apply to you.

Limitation of Liability 

Neither Flexcin or any third party involved in creating and/or delivering the website will be liable under any theory (including negligence) for any incidental, consequential, indirect, special, or punitive damages arising out of your access to or use of the website, even if Flexcin has been advised of the possibility of such damages.

Copyright

The copyright in all content provided on this website is held by Flexcin or by the original creator of the content. Except as provided in these Terms and Conditions of Use, such content may not be reproduced, distributed, republished, downloaded, displayed, posted, or transmitted in any form or by any means, including, but not limited to, electronic, mechanical, photocopying, recording, or otherwise, without the written permission of Flexcin or the copyright owner.

Trademarks

The trademarks, service marks, and logos (“Trademarks”) used and displayed on this website are registered and unregistered Trademarks of Flexcin and others. Nothing on this website should be construed as granting, by implication, estoppel, or otherwise, any license or right to use any Trademark displayed on this website, without the written permission of the Trademark owner. Flexcin aggressively enforces its intellectual property rights to the fullest extent of the law.

Other

Flexcin controls and operates this website from its headquarters in Fort Myers, Florida, United States of America and makes no representations that these materials are appropriate for use in other locations. If you use this website from other locations you are responsible for compliance with applicable local laws. These Terms and Conditions of Use will be governed by the laws of the State of Florida, as applied to contracts entered into between Florida residents and performed in Florida. Any dispute arising out of these Terms and Conditions of Use or your use of the website will be heard only in the state or federal court located in Fort Myers, Florida, USA, and you hereby consent and submits to the personal jurisdiction of such courts. If any provision of these Terms and Conditions of Use is held to be unlawful, void or for any reason unenforceable, that provision will be deemed severable and will not affect the validity and enforceability of the remaining provisions. These Terms and Conditions of Use may not be amended except as provided above. Note: If you are an owner of intellectual property who believes your intellectual property has been improperly posted or distributed via this website, please notify Flexcin International, Inc. immediately at the following address: Attention Legal Department, 2659 NE 9th Ave, Cape Coral FL 33909

Links

The website may from time to time display links to other websites or resources sponsored by third parties as a convenience to you. Flexcin is not responsible or liable for, and does not endorse, the content or operation of such third-party websites, including but not limited to the advertising, products or other materials on or available from such websites or resources. Various third-party websites may provide links to this website. Flexcin has not reviewed any or all of the third-party websites linked to this website. Flexcin is not responsible for the content of any off-site pages or any other websites linked to this website. Llinking to this website, off site pages or other websites is at your own risk. Note: Anyone linking to Flexcin’s website must comply with the Guidelines for Linking to the Flexcin Website and all applicable laws.