SPF Scout · Ingredient
Lactic Acid
CAS 50-21-5
What this ingredient generally does
Lactic Acid is a multi-tasker that helps set and steady the product's acidity level. It also draws in and holds moisture and conditions the skin, so it can soften and smooth as it works.
Reviewed before publication. This note describes function in a formulation — 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.
Alba Botanica Alba Botanica VE Daily Shade SPF15 Body
SPF 15 as labeled · U.S. formulation
EltaMD EltaMD UV Clear Blemish-Prone and Oil Balancing
U.S. formulation
EltaMD EltaMD UV Clear SPF46
SPF 46 as labeled · U.S. formulation
EltaMD EltaMD UV Clear Tinted SPF46
SPF 46 as labeled · U.S. formulation
Eucerin Eucerin
U.S. formulation
Eucerin Eucerin Daily Protection Face
U.S. formulation
Sensolar Duo Bronce Factor 50
EU formulation
Supergoop! City Sunscreen serum Broad Spectrum SPF 30
SPF 30 as labeled · U.S. formulation
TULA Tula 24-7 Moisture Plus SPF 30 Hydrating Day with Sunscreen
SPF 30 as labeled · U.S. formulation
TULA Tula Skincare Protect and Glow Daily Facial Sunscreen Gel 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.