INCI: Aqua
The number one solvent in cosmetic formulas. Provides hydration of the upper stratum corneum but does not penetrate into deeper layers.
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
Water is the base of most cosmetic formulas. On its own it does not restore the barrier: without emollients and occlusives, moisture quickly evaporates from the skin surface.
Irritation potential
LowAllergen risk
LowPregnancy
SafeSuitable for
Water is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
Water suits: oily, dry, sensitive, combination, normal.
The number one solvent in cosmetic formulas.
The INCI name is Aqua. It may also appear as: Water, Eau, Aqua/Water/Eau.
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