Thats because NAD coenzymes impact pathways in the body that modify aging, according to a 2021 UK study that included human and animal data
2) Conditioner: Aqua, cetearyl alcohol, propylene glicol, paraffinum liquidum, petrolatum, cetrimonium chloride, theobraoma cacao seed butter, cyclopentasiloxane, amodimethicone, trideceth-12, TEA-dodecylbenzenesulfonate, dimethiconol, hydroxyethylcellulose, glyceryl stearate, parfum, butylphenyl methylpropional, hexyl cinnamal, linalool, methylparaben, propylparaben, penthenol, disodium EDTA, hydrolyzed keratin, citric acid
In humans, DPP4 found in the brush borders of epithelial cells of the proximal convoluted tubules in the kidney and of the small and large intestine as well as in prostate tissue, liver hepatocytes, and activated leukocytes (T-, B- and natural killer cells)
[7] [9] Patients with a history of oxalate nephrolithiasis (kidney stones) or hyperoxaluria should avoid high-dose vitamin C administration, as ascorbic acid is metabolized to oxalate, which may precipitate stone formation or exacerbate renal impairment
