Ingredient
Tetrahydropiperine
THP
Cosmoperine
What it is
A saturated derivative of piperine, the pungent alkaloid of black pepper (Piper nigrum), used in very small amounts as a skin-penetration enhancer.
How it works
It transiently loosens the packing of the skin barrier's surface lipids, helping co-formulated actives and nutrients absorb more efficiently.
What it does
Skin conditioning
Antioxidant
Concerns to know
-
Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.