Sources & References

We link to the underlying pages so readers can verify claims and check for changes.

Official PSPeptides sources

• PSPeptides official website and FAQ
• Certifications / testing claims
• Terms & policies

Independent review source

• Trustpilot PSPeptides reviews

Regulatory and safety sources

• FDA: Compounding and the FDA Q&A
• FDA: Concerns with unapproved GLP-1 drugs
• FDA warning letter example: Gram Peptides (2026)