Sodium Metabisulfite
An antioxidant and preservative that shields formulas from oxidation, common in brightening products and hair dyes. Sulfites are a known allergen, especially for people with asthma or sulfite intolerance.
Supporting ingredient
It gives a product its texture, stability or shelf life. It has no claimed effect on the skin, so an efficacy tier does not apply. What is known about its safety is below
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Moderate
- Pregnancy
- Caution
- Suitable for
- Normal, Oily, Combination
- Use with caution
- Sensitive
Frequently asked questions
Is Sodium Metabisulfite safe during pregnancy?
Sodium Metabisulfite should be used with caution during pregnancy. Consulting a dermatologist or OB-GYN is advisable.
What skin types is Sodium Metabisulfite for?
Sodium Metabisulfite suits: normal, oily, combination. Use with caution in: sensitive.
What is Sodium Metabisulfite and what does it do in cosmetics?
An antioxidant and preservative that shields formulas from oxidation, common in brightening products and hair dyes.
What's the INCI name for Sodium Metabisulfite?
The INCI name is Sodium Metabisulfite. It may also appear as: Sodium Pyrosulfite, E223.
See Sodium Metabisulfite in a product composition right on the store page
The Evigrade extension adds an evidence panel to iHerb, Sephora, Druni and 12 more stores. This ingredient and every other one in the product show evidence-tier, allergen risk and pregnancy/lactation flags at a glance.
Similar role in the formula
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