Biotinoyl Tripeptide-1 is a biotin-conjugated tripeptide marketed for strengthening hair anchorage and improving scalp/follicle condition, often used in anti-hair-loss and hair-growth formulations. It is thought to act on the extracellular matrix proteins surrounding the hair bulb, though clinical evidence is limited.
| Reported effect | How often | Notes |
|---|---|---|
| Scalp irritation or redness | Uncommon | Mild transient irritation, often related to other formulation components rather than the peptide itself. |
| Contact dermatitis or allergic sensitization | Rare | Possible in individuals sensitive to peptides or preservatives in the product. |
| Itching or stinging on application | Rare | Usually mild and self-limiting. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.