For years, the fight against skin conditions has led the field of cosmetology to favor the use of certain notable ingredients. Retinol, azelaic acid, benzoyl peroxide, salicylic acid... these active principles are known for their interesting properties to improve the skin. However, natural ingredients exist and can also provide benefits for the skin. Sulfur, used for centuries in skin care, is appreciated for its many advantages and therapeutic properties. Let's explore together in this article its biological effects and its uses for skin care.