Polyglutamic serum

This skincare product is known for its high content of polyglutamic acid, a potent hydrating ingredient. It works by locking in moisture and retaining water, which visibly plumps the skin and smooths the appearance of lines. Besides serums, polyglutamic acid can also be found in a variety of other skincare products, including moisturizers, toners, gels, lotions, and creams.