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Privacy Policy

Last updated: May 7, 2025

1. Who we are

The Stack Index ("we", "us", "our") operates the website located at thestackindex.com (the "Site"). We provide an informational reference platform covering peptides, SARMs, steroids, and supplements. You can contact us at thestackindexsupport@gmail.com.

2. Information we collect

We collect information in the following ways:

Account information

When you sign in with Google we receive your name, email address, and profile photo from Google. We store this in our database to identify your account and associate your content (reviews, saved stacks, bloodwork entries) with you.

Content you create

Reviews you submit, stacks you save, bloodwork entries you log, and any other content you create on the Site is stored in our database and associated with your account.

Payment information

If you subscribe to The Stack Index Pro, payment is processed by Stripe. We never see or store your full credit card number. We store only your Stripe customer ID and subscription status to manage your Pro access.

Usage data

We use Google Search Console and standard server logs to understand how people use the Site. This includes pages visited, time on site, and referring URLs. This data is aggregated and not linked to individual users.

Email address

If you subscribe to our newsletter we store your email address with our email provider (Beehiiv) to send you the newsletter. You can unsubscribe at any time via the link in any email.

3. How we use your information

  • To provide and maintain your account and Pro subscription
  • To display your reviews and saved content on the Site
  • To send you the newsletter if you subscribed
  • To respond to your messages sent via the contact form
  • To process and manage your Pro subscription payments via Stripe
  • To understand how the Site is used and improve it over time
  • To comply with legal obligations

4. How we share your information

We do not sell your personal information. We share data only with the following third-party services that are necessary to operate the Site:

Google Firebase

Authentication and database storage

Privacy policy →

Stripe

Payment processing for Pro subscriptions

Privacy policy →

Beehiiv

Newsletter delivery

Privacy policy →

Vercel

Website hosting and infrastructure

Privacy policy →

5. Bloodwork and health data

If you use the bloodwork logging feature (Pro only), the lab values you enter are stored in your private account and are never shared with any third party. Only you can access your bloodwork data. This data is not used for any purpose other than displaying it back to you. We strongly recommend not entering any personally identifying information in the notes field beyond what is necessary for your own tracking.

6. Cookies

We use only essential cookies necessary for authentication (Firebase Auth session cookies) and basic site function. We do not use advertising cookies or tracking pixels. We do not display third-party ads.

7. Your rights

You have the right to:

  • Access the personal information we hold about you
  • Request deletion of your account and all associated data
  • Unsubscribe from the newsletter at any time
  • Request a copy of your data in a portable format
  • Correct inaccurate information we hold about you

To exercise any of these rights, email us at thestackindexsupport@gmail.com. We will respond within 30 days.

8. Data retention

We retain your account data for as long as your account is active. If you request account deletion we will remove your personal information within 30 days. Anonymized aggregate data (such as usage statistics) may be retained indefinitely. Reviews you have posted publicly may remain on the Site after account deletion in anonymized form.

9. Children's privacy

The Site is not directed at children under 18 years of age. We do not knowingly collect personal information from anyone under 18. If you believe a minor has provided us with personal information please contact us and we will delete it promptly.

10. Medical disclaimer

The Stack Index is an informational reference site only. Nothing on this Site constitutes medical advice, diagnosis, or treatment. The information provided is for educational purposes only. Always consult a qualified healthcare professional before starting any compound, supplement, or protocol. Many compounds discussed on this Site are not approved by the FDA for human use.

11. Affiliate links

Some links on this Site are affiliate links. If you click an affiliate link and make a purchase, The Stack Index may earn a commission at no additional cost to you. We only link to vendors we have independently assessed. Affiliate relationships do not influence our editorial content or compound rankings.

12. Changes to this policy

We may update this Privacy Policy from time to time. We will notify newsletter subscribers of any material changes. Continued use of the Site after changes are posted constitutes acceptance of the updated policy. The date at the top of this page reflects when it was last updated.

13. Contact

Questions about this Privacy Policy? Contact us at thestackindexsupport@gmail.com or use the contact form.

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