Strontium Sulfide

Strontium sulfide is an inorganic chemical compound used primarily as a depilatory ingredient in hair removal products. It works by breaking down the protein structure of hair, allowing it to be wiped away from the skin without shaving or plucking.This ingredient has a long history of use in cosmetics and is found in certain professional and at-home hair removal formulations. It is typically used in concentrated preparations rather than everyday skincare products.

Strontium sulfide functions as a reducing agent, breaking the disulfide bonds that give hair its structural integrity. These bonds link the protein chains in keratin, the main structural component of hair. By disrupting these bonds, the ingredient effectively dissolves the hair shaft at the skin surface and slightly below.The process is chemical rather than mechanical, which means the hair can be removed without friction or pulling. The ingredient is typically used in alkaline formulations that enhance its hair-dissolving capacity.

Follow product instructions carefully, including application time and removal method. Perform a patch test 24 hours before full use, as some individuals experience irritation. Avoid application to broken, irritated, or sensitive skin. After removal, rinse thoroughly with cool water and apply a soothing moisturiser to help calm the skin.

Strontium sulfide can cause irritation, redness, or allergic reaction in sensitive individuals. Do not use on broken skin or near the eye area. Always patch test first and discontinue if irritation develops.