BHT

BHT (Butylated HydroxyToluene) is a synthetic antioxidant commonly used in cosmetics, food, and industrial products. Chemically, it is a derivative of toluene, a compound that is modified to create a stable, fat-soluble antioxidant. BHT is commonly used to prevent the oxidation of oils and fats in both personal care products and food, which helps to extend their shelf life by preventing spoilage, rancidity, and the degradation of the product due to exposure to oxygen. In its original form, BHT is a white or colorless crystalline powder, but in consumer products, it is usually dissolved in a solvent to make it easier to incorporate.

BHT has gained popularity due to its effectiveness as a preservative in various products, including cosmetics, food items, and even pharmaceuticals. While its safety has been debated over the years, it remains an approved additive in many countries when used within regulated limits.