learn Biotin
B vitamin, often sold as a hair supplement
- Biotin, Biotinyl-GHK, biotinoyl-tripeptide-1… are they not the same? Biotin is a vitamin. Biotinyl-GHK and biotinoyl tripeptide-1 are two names for the same cosmetic peptide (biotin attached to GHK), usually sold inside the Procapil complex.
- Biotin: the darling of hair products. A 2017 review found that every published case of biotin helping hair was in a person with a biotin deficiency (which is rare) or another underlying condition, and no good evidence that it helps healthy people. The FDA warns that biotin can make some blood tests give wrong results.
- Biotinyl-GHK: a miracle ingredient against hair loss? Biotinyl-GHK (biotinoyl tripeptide-1) is a cosmetic ingredient, not an approved hair-loss medicine; the published studies test it only inside multi-ingredient complexes such as Procapil, so no result can be attributed to the peptide itself.
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