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Are peptide and collagen claims clinically tested, and what can I say in my store?

If you're selling products with peptide or collagen formulas, you've probably wondered whether you can call them clinically tested, and what you're actually allowed to say. Here's the full answer, along with the real strengths you can lean on.

Are these products clinically tested?

No. Our peptide and collagen formulas, including the Collagen Boost Serum, Peptide Serum, Peptide AM/PM Cream, and Collagen Night Cream, are not backed by clinical studies. That means "clinically proven" and "clinically tested" are not claims to use for them, and neither are medical-sounding promises about what they do to the skin.

What's behind the formulas

No clinical trials doesn't mean no substance. There's a lot built into these products.

  • They're made in an ISO 22716 certified facility (cosmetics good manufacturing practice) by our Certified B Corp manufacturing partner.

  • Most are COSMOS certified by ECOCERT, and the Collagen Boost Serum is also dermatologically tested and suitable for sensitive skin.

  • Every product label and product page lists the active ingredients and their concentrations, so you and your customers can see exactly what's inside and look into these well-known actives independently.

What you can say in your store

Cosmetic claims should speak to how skin looks and feels, using measured language. Safe examples include:

  • Helps improve the appearance of fine lines

  • For smoother, more radiant-looking skin

  • A peptide formula that supports your skincare routine

Always tie the claim to appearance and feel, not to a biological result.

What to avoid

  • Clinically proven or clinically tested

  • Claims that the product builds, rebuilds, or increases collagen, or otherwise changes how the skin works

  • Any medical or treatment language

These cross from cosmetic into drug-claim territory, which we can't back.

For more information, reach out to [email protected].

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