which is better glutathione or collagen Vitamin C and Collagen to help reduce dark spots Glutathione vs Collagen for Pigmentation

Alim I, Caulfield JT, Chen Y, Swarup V, Geschwind DH, Ivanova E, et al

Looking for a glutathione lotion or brightening body lotion for dry, dull and uneven-looking body skin? Meet Whiteway Korean Glutathione Brightening Body Lotion with Niacinamide & Hyaluronic Acid, a Korean-formulated body lotion designed to hydrate, soften and support a brighter-looking body glow without a heavy or sticky feel

T.GaburriM.FarroniF.PalumboR.et al (1986)

Peptides, which are short chains of amino acids, have been the subject of numerous studies exploring their potential roles in various physiological processes, including muscle growth and repair