Polyglutamic Acid: A Humectant with Multifaceted Benefits
Polyglutamic acid (PGA) is a biopolymer composed of repeating units of glutamic acid, linked together by amide bonds. It exists…
Elizabeth Arden Eight Hour Cream Skin Protectant
Elizabeth Arden Eight Hour Cream Skin Protectant is a cult beauty product. Few skincare products have such a longevity on…