Terms of Service

Effective date: November 11, 2026. Last updated: November 10, 2026.

These Terms include an arbitration agreement and a class action waiver in section 19. Please read it; you can opt out within 30 days.

1. Agreement

These Terms are an agreement between you and Staxyz, Inc. ("Staxyz", "we"). They cover the Staxyz website, apps and community. By creating an account or using Staxyz, you agree to these Terms. Our Privacy Policy and Consumer Health Data Privacy Policy explain how we handle your information.

2. Who can use Staxyz

You must be 18 or older and live in the United States. You're responsible for your account and for keeping your sign-in secure.

3. Staxyz is not medical advice

Staxyz is a tool for logging supplements and wellness metrics. It is not a health care provider, and nothing in Staxyz is medical advice, a diagnosis or a treatment plan. Talk to a licensed clinician before you start, stop or change anything you take. Community Stacks shows what other members log, not a suggestion from Staxyz, and Staxyz Picks shows what to look for on a label, not a recommendation to take anything. Links to other sites, such as a certifier's search, open sites Staxyz doesn't control.

Library entries, study summaries, half-life curves and "Reported, not recommended" lines are general information from published sources. They are not instructions or recommendations. Half-life curves are estimated from a published half-life and are not a measurement of your levels. Many compounds in the Library are not FDA-approved, and supplements aren't reviewed by the FDA before they're sold.

If you have a medical emergency, call 911. If you're thinking about harming yourself, call or text 988.

4. WADA status

The WADA status shown for a compound is for information only. It is based on the World Anti-Doping Agency's Prohibited List as of the date shown as checked. It isn't anti-doping advice, and the List changes. If you're an athlete subject to anti-doping rules, check with your anti-doping organization before you use anything.

5. Natt

Natt is an AI assistant powered by an outside AI service provider. Natt shares general information, not medical advice, and nothing Natt says is a recommendation that you take, stop or change any product, dose or treatment. Natt isn't a doctor, pharmacist or other clinician, and using Natt doesn't create a clinician-patient relationship. When Natt reports what a study, label or community source says, that's the source's claim, not ours, and community and member sources aren't verified. Natt's answers can be wrong or incomplete. Check with a clinician before you start, stop or change anything, and don't use Natt for emergencies. In an emergency, call 911. How Natt uses your information is explained in our Privacy Policy.

6. Services

In Services, Staxyz Picks shows what to look for on the label of common supplement forms, with links to independent certifiers' own search pages. It names no brands. Staxyz doesn't sell anything there, and no one pays Staxyz to be included. Certifiers are independent of Staxyz and don't endorse it. Staxyz may also list blood-testing services from other companies so you can compare them. Staxyz doesn't order, run or review tests. Those companies are responsible for their own services, prices and terms.

7. Subscriptions

Staxyz has two plans: Free and Staxyz+.

Free costs nothing and includes logging, protocols, reminders, vials, label scans, Home, Health, Stack, the Staxyz tools, Apple Health and cloud sync, the Feed, Groups, forum and profiles, testing requests, Services (Staxyz Picks and lab-test comparison), data export, Natt within usage limits, and up to 2 Supply items.

Staxyz+ is a paid subscription. It includes everything in Free, plus higher Natt usage limits, the clinician summary, all Share My features (which let you share chosen parts of your log with another member you pick, one way, until you stop), history import, Connect Staxyz to my AI, which links your own AI assistant (not Natt) to your Staxyz data, the Staxyz+ badge and the option to apply for a credential badge, and any number of Supply items. If you use Connect Staxyz to my AI, data is sent only after you choose what to share and agree, and you can disconnect at any time. If you turn on Let my AI add entries, your connected AI can also log doses, skips and symptoms, which counts down your supply, and suggest protocol and Stack changes that are added only if you confirm them. You can edit or delete anything it adds, and you're responsible for checking it, since your AI can make mistakes. The plan screen shows what's included and the price before you buy. Prices don't include any tax.

Early-member pricing. We're in an early-member phase, and we'll announce in the app when it ends. During this phase, Staxyz+ costs $5 a month or $36 a year. Like any Staxyz+ price, the early-member price can change for new subscribers.

Free trial. The yearly plan includes one free month, once per person. You won't get another free trial after you switch plans, cancel or come back. Unless you cancel at least 24 hours before the free month ends, your yearly subscription starts and you're charged when it ends.

Subscriptions bought through the App Store are billed by Apple and renew automatically unless you cancel at least 24 hours before the end of the current period. Payment is charged to your Apple account when you confirm your purchase, and each renewal is charged within the 24 hours before the current period ends. You can manage or cancel in your Apple account settings. Refunds are handled by Apple under its policies. Staxyz+ can't be shared through Apple Family Sharing.

Your price won't go up while you stay subscribed, meaning as long as your Staxyz+ subscription continues without a break. If you switch between monthly and yearly without a break, you pay the price each plan had when your subscription started. We may change Staxyz+ prices for new subscribers at any time. If your subscription ends for any reason, including canceling or a payment that still doesn't go through after Apple's retry period, and you subscribe again later, you'll pay the price offered at that time. Taxes aren't part of your price and may change. If we ever stop offering Staxyz+, we'll tell you at least 30 days before your last renewal and won't charge you after it ends.

8. Your content

You own what you add to Staxyz. You give us permission to store, process and display it only to run Staxyz for you, including showing your community posts to other members. Deleting a post also deletes the replies under it. This permission ends when you delete the content or your account, except for copies other people made outside Staxyz.

9. Community rules and moderation

Don't post anything that is illegal, offers to sell or source drugs or compounds, shares someone's personal information, threatens or harasses anyone, or exploits children. Follow our Community Guidelines.

Posts are screened by automated tools before they appear. These tools are provided by an outside moderation provider. If a post isn't published, we tell you why, and you can edit and resubmit it. Posts that claim cures or extreme results may be shown to fewer members. We don't tolerate objectionable content or abusive members. You can report a post or profile and block a member in the app. Our team reviews reports within 24 hours and may remove or restrict content or accounts that break our Community Guidelines or the law.

10. Credential badge

Staxyz+ members can apply for a credential badge, which shows a professional license or degree we have confirmed. Only US credentials qualify: MD, DO, NP, PA, RN, PharmD, RD, DC, a state-licensed ND, or a PhD in a relevant field. You must apply only for a credential that is real, current and your own. We check it with the body that issued it, such as a state licensing board or the school that granted the degree, and we may recheck it at any time. We may refuse, suspend or remove a badge at our discretion, including when a credential can't be confirmed, has lapsed or is restricted. The badge comes off when your Staxyz+ plan ends and comes back if you renew while your credential is still confirmed. Title words such as Dr, MD or PhD can't be used in a display name without a matching badge. If you apply with a false credential, we may close your account.

The badge shows only that we confirmed the credential named on it. It isn't an endorsement by Staxyz, and it doesn't mean Staxyz has reviewed or approved what you post. Posting on Staxyz doesn't create a doctor-patient or other professional relationship with anyone. Your posts are your personal views, not professional advice, and you're responsible for following the rules of your own profession and license.

11. Importing your history

If you use the importer, only import files and images you have the right to use. The importer may not match every entry. Check what was imported.

12. Things you may not do

13. Apple Health and other services

Apple Health, Siri, the App Store and links to other companies are provided by those companies under their own terms. We aren't responsible for them.

14. Apple

These Terms are between you and Staxyz, not Apple. Staxyz gives you a personal, non-transferable license to use the app on Apple devices you own or control, as the App Store rules allow. Apple isn't responsible for Staxyz or its content and has no duty to provide maintenance or support. If the app fails a warranty that applies, you can tell Apple and Apple will refund what you paid for the app. Apple has no other warranty obligation. Staxyz, not Apple, handles claims about the app, including product liability, legal compliance, consumer protection and intellectual property claims. You confirm you aren't in a country under a US government embargo or on a US list of prohibited parties. Apple and its subsidiaries may enforce these Terms as third-party beneficiaries.

15. Ending your use

You can delete your account in the app at any time. We may suspend or end your access if you break these Terms or the law, or to protect members or Staxyz.

16. Disclaimers

Staxyz is provided "as is" and "as available". To the extent the law allows, we disclaim all warranties, including fitness for a particular purpose, and we don't promise that Staxyz or its information will be accurate, complete or always available.

17. Limits on liability

To the extent the law allows, Staxyz isn't liable for indirect, incidental, special or consequential damages, and our total liability for any claim is limited to the amount you paid us in the 12 months before the claim. Nothing in these Terms limits rights you have that the law doesn't allow us to limit.

18. Changes to these Terms

We'll post updated Terms here with a new date. If a change is material, we'll tell you by email or in the app before it takes effect. Changes to section 19 also follow the rules in that section.

19. Disputes and arbitration

Please read this section carefully. It affects how you and Staxyz resolve disputes.

Governing law. Delaware law governs these Terms, without regard to conflict-of-law rules. This doesn't take away any protection the law of the state you live in gives you that can't be waived. The Federal Arbitration Act governs this arbitration agreement.

Try to resolve it first. Before starting arbitration or a court case, email support@staxyz.com with your name, your account email, what the problem is and what you want. We'll try to resolve it with you informally for 60 days. If we have a dispute with you, we'll contact you the same way.

Arbitration. If we can't resolve it, you and Staxyz agree that any dispute about Staxyz or these Terms will be settled by binding individual arbitration, not in court. The American Arbitration Association (AAA) runs it under its Consumer Arbitration Rules, and under its Mass Arbitration Supplementary Rules when they apply. The hearing is held by video or in the county where you live. You pay only the filing fee the AAA's consumer rules assign to you, and Staxyz pays all other AAA and arbitrator fees. In arbitration there is no judge or jury, and a court's review is limited.

Small claims court. Either of us may instead bring an individual claim in small claims court if it qualifies.

Exceptions. Either of us may go to court for claims about intellectual property, such as copyrights, trademarks or trade secrets, or to ask for an emergency court order.

No class actions. You and Staxyz may bring claims only on an individual basis, not as a plaintiff or class member in any class, collective or representative action. The arbitrator may not decide class or representative claims. If this waiver is found unenforceable for a claim, that claim goes to court, not to class arbitration.

Public injunctive relief. If you ask for public injunctive relief (an order that mainly protects the public) and the law doesn't allow that claim to be waived, a court decides it after the individual arbitration ends. The court case is on hold until then.

Mass filings. If 25 or more similar claims are filed by the same or coordinated lawyers, the AAA handles them in batches of up to 100 claims, with one arbitrator for each batch. Claims not yet in a batch are on hold, and their deadlines are paused while they wait. Filing fees are due only as each batch begins.

Opting out. You can opt out of arbitration within 30 days of first accepting these Terms. Email support@staxyz.com with your name and account email, and say that you opt out of arbitration. Opting out doesn't affect anything else in these Terms.

Courts. Except for small claims court, any claim that isn't arbitrated goes to the state or federal courts in Santa Clara County, California, and you and Staxyz agree to their jurisdiction.

Changes to this section. If we change this section, the change won't apply to a dispute we already knew about. You can reject a change by emailing support@staxyz.com within 30 days after we tell you about it. If you do, the earlier version of this section still applies to you.

20. Contact

support@staxyz.com · Staxyz, Inc.