SPF Scout · Ingredient
Sodium Thiosulfate
CAS 7772-98-7 / 10102-17-7
What this ingredient generally does
Sodium Thiosulfate acts as a reducing agent in the formula. That means it manages certain chemical reactions to keep the product stable.
Reviewed before publication. This note describes function in a formulation, and nothing else.
Published formulations that list this ingredient
These are the formulations currently published in the SPF Scout catalog whose stored ingredient declaration includes this ingredient. It is not a list of every product on the market, and the order carries no meaning.
CeraVe Developed with Dermatologists Skin Renewing Brightening with Sunscreen Broad Spectrum SPF 30
SPF 30 as labeled · U.S. formulation
L'Oreal USA Products Inc Kiehls Since 1851 Dermatologist Solutions AutoTone Discoloration and UV Solution Broad Spectrum SPF 30 Sunscreen
SPF 30 as labeled · U.S. formulation
La Roche Posay Laboratoire Dermatologique Mela B3 UV Daily Sunscreen Broad Spectrum SPF 30
SPF 30 as labeled · U.S. formulation
Checking this against your own list
You can select this ingredient in the SPF Scout app as one to flag. The app compares your selections against a product's stored declaration on your device; your list never reaches this website.
This comparison does not predict whether your skin will react.
Where this information comes from
Ingredient names, CAS numbers and recorded functions come from SPF Scout’s curated ingredient dictionary, grounded in CosIng, the European Commission’s Cosmetic Ingredient Database. Content © European Union, reused with acknowledgement.