Ingredient guide
GABA
INCI name · gamma-aminobutyric acid
In short
GABA is a topical neurotransmitter analogue marketed for a subtle smoothing effect on expression lines. Evidence is still emerging, but it may help the skin look temporarily more relaxed.
What it is
Neurotransmitter used topically as a mild muscle-relaxant analogue. Marketed for expression-line smoothing, with limited independent evidence.
Evidence receipt
No linked study yet
No verified study is linked to this exact ingredient and route. The guidance below describes conventional use; it is not evidence of efficacy.
Where it sits
Serums sit after toner and before moisturiser. Thinnest to thickest, water before oil.
- Cleanse
- Tone
- GABA
- Moisturise
- SPF
Also found as
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Common questions
What does GABA do for skin?
It can create a mild, temporary softening of expression lines, giving the skin a more rested appearance.
Is GABA suitable for sensitive skin?
It’s generally gentle and can suit sensitive types, though responses vary and patch testing is sensible.
How is GABA used in skincare?
It appears in serums and targeted treatments aimed at visible line-smoothing. Apply as part of a regular leave-on routine.
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Personal guidance, not medical advice.