Amino Acids + B5 Hydration Serum

Summary The Ordinary's Amino Acids + B5 Hydrating Serum is a lightweight, concentrated hydration support formula with 17% amino acids (including amino acid derivatives) and 5% vitamin B5. The Ordinary's Amino Acids + B5 Hydrating Serum is a lightweight, concentrated hydration support formula with 17% amino acids (including amino acid derivatives) and 5% vitamin B5.