active
Water (Aqua)
Aqueous vehicle — identical to 'water' in formulation function. INCI listing varies between brands but the ingredient is chemically identical.
Benefits
- Universal solvent
- Primary aqueous vehicle
- Transient surface hydration
- Required for emulsification
- Electrolyte and buffer carrier
Example uses
- Serums
- Emulsions
- Toners
- Gels
- All aqueous formulations
Mechanism of action
Same as water — aqueous solvent and vehicle function.
Clinical evidence · High
See water. Complete safety characterisation.
Effective concentration range
q.s.
Formulation notes
See 'water' — functionally identical. INCI name variation only.
Watchouts
Functionally identical to 'water' entry.
Market positioning
See water. Functionally identical — INCI name variant only.
Comedogenicity
0 / 5
Sensitisation risk
Low
INCI & aliases
Aqua
water · aqua · purified water · deionized water
Clean beauty perception
Identical to water — universally accepted.
Graph relationships
Timeline