What it is
Rhus semialata extract is derived from the Chinese sumac, a plant whose galls are traditionally rich in tannins. In cosmetics it is used at low levels as a conditioning and antioxidant additive, and its tannin content can contribute astringent character. In sunscreens it plays a supportive role and is not a UV filter.
Safety & warnings
Generally well tolerated at the low levels used in cosmetics. As a member of the Rhus (sumac) genus, individuals with known sensitivities to related plants may prefer to patch test, though the processed extract is widely used in skincare.
Origin & sourcing
Natural, obtained from Rhus semialata (Chinese sumac), often from the tannin-rich plant galls.
Questions everyone asks
What plant does this extract come from?
It comes from Rhus semialata, the Chinese sumac, whose tannin-rich galls are often used as the source.
Does it provide sun protection?
No. It is a botanical conditioning and antioxidant additive; the product's active filters provide UV protection.