Ingredient
Methylene Bis-Benzotriazolyl Tetramethylbutylphenol
Bisoctrizole
Tinosorb M
What it is
A broad-spectrum organic-particulate UV filter used in sunscreens to shield skin from both UVA and UVB radiation.
How it works
Its large, poorly-absorbed particles both absorb and physically scatter UV light, giving broad UVA/UVB protection while staying on the skin surface.
What it does
UV filter
Concerns to know
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Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.