1,3-Butanediol

　　Main Uses

　　Cosmetics and Personal Care Products

　　Core Function: As an efficient humectant, its moisturizing ability is superior to glycerin, with a fresher skin feel (non-sticky), and it can form a protective film on the skin surface to reduce moisture loss;

　　Auxiliary Function: As a solvent to dissolve fragrances and active ingredients (such as vitamins, plant extracts), while enhancing product stability and reducing the irritation of other ingredients (e.g., alleviating the degreasing effect of surfactants); widely used in face creams, lotions, toners, masks, shampoos, and other products.

　　Pharmaceutical and Food Industries

　　In the pharmaceutical field, used as a solvent or excipient in oral liquids, ointments, suppositories, etc., helping to dissolve poorly soluble drugs and improving the fluidity and stability of preparations;

　　In the food industry, it can be used as a food additive (such as a humectant, sweetener) in baked goods, beverages, etc.; its safety is recognized by agencies like the FDA (GRAS status, Generally Recognized As Safe).

　　Chemical and Industrial Fields

　　As an organic synthesis intermediate, used in the production of polyester resins (e.g., saturated polyesters for coatings, plastics), plasticizers, surfactants, etc.;

　　In inks and coatings, used as a solvent or co-solvent to improve the leveling and adhesion of products;

　　Used in the preparation of brake fluid, antifreeze, etc., utilizing its characteristics of low freezing point (-54℃) and high boiling point.

　　Other Applications

　　In the tobacco industry, used as a humectant to maintain tobacco moisture and reduce fragmentation during processing;

　　Used in pet supplies (such as fur conditioners), providing gentle moisturization with low irritation to animal skin.