SMITHSONITE is graded A (Safe) by Expert·ING, based on COSING, FDA regulatory data.

SMITHSONITE

Safety grade: A

Smithsonite is a naturally occurring mineral composed of zinc carbonate that is found in the earth. It has been used in skincare products for its skin-tightening properties.

As an astringent, smithsonite helps tighten and tone the skin by temporarily reducing the appearance of pores and creating a more refined skin texture.

Graded using: COSING, FDA.

Last verified: May 26, 2026