Glutamic acid, a vital constituent of proteins, participates in diverse physiological functions. It plays a pivotal role in regulating the skin’s hydration levels by contributing to the synthesis of natural moisturizing factors (NMFs) like pyrrolidone carboxylic acid and urea. These NMFs aid in attracting and retaining water in the skin, fostering hydration and a radiant complexion. Moreover, glutamic acid possesses antioxidant properties, which counteract the harmful effects of free radicals, shielding our skin cells from oxidative damage. Additionally, glutamic acid plays a crucial role in collagen production, the protein pivotal for maintaining skin suppleness and firmness.