Aminobutyric Acid (commonly gamma-aminobutyric acid, GABA) is an amino acid used in topical formulations as a skin-conditioning and humectant agent, with claims of muscle-relaxing and anti-wrinkle effects on the skin surface. Its topical efficacy for these claims is not strongly established in clinical literature.
| Reported effect | How often | Notes |
|---|---|---|
| Mild transient irritation or redness | Rare | Generally well tolerated; occasional mild stinging reported at application site. |
| Allergic contact dermatitis | Very rare | Isolated sensitivity reactions possible, as with most cosmetic ingredients. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.