by ALI GOUDARZI
Amino acids are the building blocks of proteins. They are organic compounds that contain an amino group (-NH2) and a carboxyl group (-COOH). There are 20 different amino acids that are found in proteins. Amino acids are essential for human health. They are involved in...
by ALI GOUDARZI
Ampoules are small, sealed vials containing a single application of highly concentrated extracts in a water or oil base. They are typically used in skin care to deliver a concentrated dose of active ingredients to the skin. Ampoules are a popular choice for beauty...