Water
molecular structure · PubChem
AKA: CONTAINS 0
Synthetic
Solvent
Skin Conditioner
Clean
Water is a cosmetic ingredient used as solvent. CosIng lists it as Aqua.
Formula
H2O
Mol. Weight
18.02
CAS #
7732-18-5
Form
Liquid
Functions
Antiplaque
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Locks in moisture
Traditional Use
The fundamental ingredient in all aqueous cosmetics and skincare products. Used throughout human history as the primary carrier and solvent in potions, tinctures, and beauty preparations.
EWG
1
CIR
—
Pregnancy
—
CIR Safety Findings
ewg-1
pregnancy-nursing-safe
all-shades-safe
Regulatory Agencies
Skin Types
●all-skin-types, gentle
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
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Verified Jun 2026
Data: PubChem · CosIng · EWG