SPF Scout · Ingredient

Sr-Hydrozoan Polypeptide-1

UV filter (filters UV rays)Film forming (leaves a thin coating)Hair conditioning (CosIng functional class)Humectant (holds moisture)Skin conditioning (CosIng functional class)

What this ingredient generally does

A lab-made protein fragment that forms a film on skin, conditions skin and hair, and acts as a humectant that draws in and holds moisture. It also filters UV light. The film and moisture-binding help keep skin feeling smooth and hydrated.

Reviewed before publication. This note describes function in a formulation, and nothing else.

Published U.S. formulations that list this ingredient

These are the U.S. 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.

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.

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