Snapshot
- Overview
- A UV absorber that helps protect sunscreen formulas from breaking down.
- Category
- Color
- Type
- UV Filter
Sodium Benzotriazolyl Butylphenol Sulfonate
Sodium Benzotriazolyl Butylphenol Sulfonate is a water-soluble UV absorber used in sunscreens and daily wear products. It's used to improve formula photostability and color protection; evidence for anti-aging or tone benefits in leave-ons is limited.
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Our take
Is Sodium Benzotriazolyl Butylphenol Sulfonate a Good Ingredient?
This rates Fair since it mainly stabilizes the formula against UV rather than delivering well-proven anti-aging or tone benefits to skin, and evidence for leave-on efficacy is limited. Some users may also experience mild irritation, particularly around the eyes or on sensitive skin.
What it does
Skin Benefits
It helps bolster a formula's resistance to UV-induced breakdown, which can reduce fading and discoloration of the product itself. Skin tone or anti-aging improvements in leave-on products aren't well proven.
Where you'll find it
Uses in Skincare & Cosmetics
It's used in sunscreens, day creams, and serums to support the UV stability of the formulation, and seen in color-protecting hair products and makeup to help limit product fade.
Before you use it
Safety
It's considered acceptable at typical cosmetic use levels, with generally low absorption. It may cause mild irritation or stinging in sensitive individuals, so patch testing is sensible for leave-on products.
Products with Sodium Benzotriazolyl Butylphenol Sulfonate
