Zinc glycinate is a chelated form of zinc bound to the amino acid glycine, used in topical formulations for its anti-inflammatory, sebum-regulating, and antimicrobial properties. It is valued for relatively good skin tolerance and bioavailability compared with some inorganic zinc salts.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient irritation or stinging | Uncommon | Usually mild and resolves with continued use or reduced frequency. |
| Skin dryness | Uncommon | More likely at higher concentrations or in oily/acne formulations. |
| Contact erythema or redness | Rare | Typically localized and self-limiting. |
| Allergic contact dermatitis | Very rare | Hypersensitivity to zinc compounds is infrequently reported. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.