> For the complete documentation index, see [llms.txt](https://help.decodeage.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.decodeage.com/decode-age-support/quality-and-certification.md).

# Quality & Certification

- [What is the significance of FDA registration for Decode Age?](https://help.decodeage.com/decode-age-support/quality-and-certification/what-is-the-significance-of-fda-registration-for-decode-age.md)
- [Why are all Decode Age supplements Pharmaceutical Grade?](https://help.decodeage.com/decode-age-support/quality-and-certification/why-are-all-decode-age-supplements-pharmaceutical-grade.md)
- [What is the difference between Pharmaceutical and Nutraceutical Grade supplements?](https://help.decodeage.com/decode-age-support/quality-and-certification/what-is-the-difference-between-pharmaceutical-and-nutraceutical-grade-supplements.md)
- [What is the Purity and Efficacy of Decode Age Supplement?](https://help.decodeage.com/decode-age-support/quality-and-certification/what-is-the-purity-and-efficacy-of-decode-age-supplement.md)
- [What Certifications Do Your Decode Age Supplements Have?](https://help.decodeage.com/decode-age-support/quality-and-certification/what-certifications-do-your-decode-age-supplements-have.md): Find all the details of Certificate to Ensuring Safety and Quality in Your Supplements.