Peptides are amino acids that may have anti-aging effects in skin products, such as helping reduce fine lines and wrinkles.

Our dietitians and testers rounded up the 12 best protein powders. See the products that made our list and get tips on how to use protein powder.

Here, we have tested the prediction that reactivity in [FeFe]-hydrogenases can be tuned through perturbing the pKa value of the amino acid in the secondary coordination sphere that mediates the proton ...

The solubilities of glycine, l-leucine, l-phenylalanine, and l-aspartic acid in aqueous solutions of the salts composed by combining Na+, K+, and NH4+ cations and Cl– and NO3– anions were measured up ...