Glycyl Glycine is a dipeptide used in skincare to help refine the appearance of enlarged pores and support sebum regulation, partly by modulating skin enzyme activity around the pilosebaceous unit. It is typically included at low concentrations in serums and lotions targeting pore visibility and skin texture.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient irritation or stinging | Rare | Generally well tolerated; brief sensation possible on application, especially in sensitive skin or with higher concentrations. |
| Redness or erythema | Rare | Localized and usually self-resolving. |
| Allergic contact dermatitis | Very rare | Peptide ingredients uncommonly trigger sensitization; discontinue if persistent reaction occurs. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.