Methylene Bis-Benzotriazolyl Tetramethylbutylphenol

The details

This ingredient is also known as Tinosorb M or Bisoctrizole and is a bit of an overachiever in the sunscreen world. It's a hybrid broad-spectrum filter that covers UVA and UVB (~280-400nm) with peak absorption around 305nm for UVB or 360nm for UVA (and a tiny bit in blue-light territory as well). One of its best party tricks is photostability; it doesn't break down with repeated sun exposure and doesn't generate free radicals in the process either. You'll also see it paired with wobbly filters like avobenzone because it helps stabilize them. The safety profile is assuring as well. Because it's a large molecule, it doesn't easily absorb into skin and rarely causes irritation. It's approved in the EU, Asia, and Australia up to 10% and most formulas land somewhere in the 2-10% range. You won't find it as a sunscreen active in the US, but it can make an appearance as a formula-protecting UV-absorber.

Found in (16 products)

SKIN1004

Madagascar Centella Hyalu-Cica Water-Fit Sun Serum SPF50+ PA++++

Sunscreens

Oil-freeReef safeParaben-free+3

Beauty of Joseon

Relief Sun : Rice + Probiotics SPF 50+ PA++++

Sunscreens

Oil-freeReef safeParaben-free+3

Isntree

Hyaluronic Acid Watery Sun Gel SPF 50+ PA++++

Sunscreens

Alcohol-freeParaben-freeSulfate-free+2

Round Lab

Birch Moisturizing Sunscreen SPF 50+ PA++++

Sunscreens

Reef safeParaben-freeSulfate-free+1

PURITO

Daily Soft Touch Sunscreen SPF 50+ PA++++

Sunscreens

Oil-freeReef safeAlcohol-free+6

iUNIK

Centella Calming Daily Sunscreen SPF50+ PA++++

Sunscreens

Oil-freeReef safeParaben-free+3

SCINIC

Enjoy Super Mild Sun Essence SPF50+ PA++++

Sunscreens

Oil-freeReef safeAlcohol-free+5

House of Hur

Tropical Dew Sun Cream SPF 50+

Sunscreens

Alcohol-freeParaben-freeSulfate-free+3

Goodal

Heartleaf Calming Moisture Sun Cream SPF 50+

Sunscreens

Oil-freeReef safeParaben-free+3

Missha

All Round Safe Block Aqua Sun Gel SPF 50+ PA++++

Sunscreens

Oil-freeReef safeParaben-free+3

Dr. Althea

Green Tea Fresh Sunscreen SPF 50+

Sunscreens

Oil-freeAlcohol-freeParaben-free+3

Luxe Organix

High Protection Perfecting UV Tint Serum Sunscreen SPF 50 PA +++

Sunscreens

Oil-freeAlcohol-freeParaben-free+5

Holika Holika

Aloe Soothing Essence Waterproof Sun Cream SPF 50+

Sunscreens

Reef safeParaben-freeSulfate-free+2

Wishcare

Ceramide Lip Balm SPF 50

Lip Care

Alcohol-freeParaben-freeSulfate-free+2

Facerinna

Niacinamide Brightening Serum Sunscreen SPF 50

Sunscreens

Oil-freeAlcohol-freeParaben-free+4

Skin Aqua

UV Brightening Moisture Gel SPF 50

Sunscreens

Oil-freeAlcohol-freeParaben-free+4