Hydrogenated Styrene/Butadiene Copolymer
A polymer thickener and film former. It structures the oil phase and holds pigments and SPF filters evenly. Inert to skin.
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
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Hydrogenated Styrene/Butadiene Copolymer (INCI same) is a thickening and film-forming polymer. It structures the oil phase and keeps pigments and sunscreen filters evenly distributed. It appears in sticks, makeup and sun care. On efficacy: this is a functional texture and structure ingredient, not a skincare active. It does not treat skin. Its value is in giving the formula body and helping color and SPF spread evenly, which is useful in long-wear products. It is topical, with no meaningful systemic absorption. It can be used during pregnancy and breastfeeding. Tolerance is high: low irritation and allergy potential, suitable for sensitive skin. It is an inert polymer that does not clog pores under normal conditions.
Frequently asked questions
Is Hydrogenated Styrene/Butadiene Copolymer safe during pregnancy?
Hydrogenated Styrene/Butadiene Copolymer is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Hydrogenated Styrene/Butadiene Copolymer for?
Hydrogenated Styrene/Butadiene Copolymer suits: normal, dry, combination, oily, sensitive.
What is Hydrogenated Styrene/Butadiene Copolymer and what does it do in cosmetics?
A polymer thickener and film former.
What's the INCI name for Hydrogenated Styrene/Butadiene Copolymer?
The INCI name is Hydrogenated Styrene/Butadiene Copolymer.
See Hydrogenated Styrene/Butadiene Copolymer 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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