The main ingredients of these products are various vitamins, amino acids, proteins, minerals, and fatty acids.
However, the main ingredients in the most popular cosmetic products are: Propylene glycol, a preservative and solvent for cosmetic products; vegetable glycerin, a moisturizer and emollient for skin; fragrance; and sodium chloride, which can cause skin irritation. The following is a brief overview of the most commonly used cosmetic products. They are ordered from the most harmful to the least harmful. Sulfur and Potassium Chloride Sulfur is used in cosmetics as a preservative. It has been used as an antiseptic and a preservative for over a hundred years. Sodium chloride is used as a preservative in a wide variety of products and in a lot of other products as well. The use of sodium chloride as a preservative has become more widespread since the mid 1990's and is now common in cosmetics. There is a lack of scientific evidence that sodium chloride is a preservative. Sodium Phosphate Sodium Phosphate is used to protect cosmetics from light. It is used for the following reasons: to provide a protective layer on the surface of the item for use in light sources, to increase the thickness of the product.