Sodium Bisulfite
A sulfite salt used as a low-level antioxidant and reducing agent to prevent oxidative discoloration in cosmetic formulas; CIR-reviewed as safe at typical use concentrations.
Benefits
- ✓Reducing agent that protects formulas from oxidative color and odor changes at very low use levels
Watch for
- ⚠Sulfite-sensitive individuals may experience irritation or allergic-type reactions
- ⚠CIR-reviewed as safe at typical cosmetic use levels (0.03-0.7%)
In depth
What it does
A sulfite salt used as a low-level antioxidant and reducing agent to prevent oxidative discoloration in cosmetic formulas; CIR-reviewed as safe at typical use concentrations. As an antioxidant ingredient, it is particularly valued for reducing agent that protects formulas from oxidative color and odor changes at very low use levels.
Skin type guide
Suitable for all skin types. Antioxidants are especially valuable for skin exposed to daily UV and environmental stressors — which is essentially everyone.
How to use it
Works particularly well in an AM routine, where its antioxidant protection pairs naturally with daily SPF. Apply after cleansing and toning, before moisturiser and sunscreen.