Hyafactor™ PGA-HM is obtained by fermentation with a superior strain of Bacillus subtilis. Its INCI name is sodium polyglutamate, which is a form of existence of Polyglutamic acid (PGA) in nature. PGA is usually a sticky anionic amino acid polymer. Initially, it was found in a traditional food ‘natto’, which is also called γ-polyglutamic acid (γ-PGA). Today, it is regarded as a good natural moisturizing ingredient and is widely used in personal care products. Not only can it provide better skin feeling, smoothness and silkiness, it can also protect the skin from external aggressions and soothe the response of allergy and inflammatory. The recommended dosage is 0.05%-1%.