Peptides, without the sales pitch.
Most of what is written about peptides is written by someone selling them. We publish what the research actually shows — which cosmetic peptides have human evidence behind them, what you can safely layer, and where the regulatory line currently sits. Our status coverage carries no affiliate links at all.
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Peptides in Skincare
What each cosmetic peptide does, what the evidence shows, and which ones are worth the money.
Routines & Layering
What you can safely combine, what order to apply it in, and which conflicts are real.
Collagen
Ingested collagen peptides — dosing, forms, absorption, and what the human trials actually found.
Peptide Science
How to read an ingredient list, decode a peptide name, and tell a real claim from a marketing one.
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Regulatory Status
Current legal and regulatory status of injectable peptides. Reference only — no products, no dosing, no commercial relationships.
Labs & Biomarkers
What at-home lab panels measure and how to read the results.
Latest
- Copper Peptides vs Retinol: Which One, and Can You Use Both?
Two well-researched actives that work in opposite ways. What each is good at, why layering them causes trouble, and how to run both without wrecking your barrier.
- Matrixyl 3000 vs Argireline: Which Peptide Does What
Sold interchangeably, but they solve different problems. One targets expression lines, the other targets structure. How to tell which one you actually need.