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Nearly half of the bacteria comprising the human gut microbiome are unable to produce NAD + de novo and rely on NAD + precursors available in the environment for their metabolic functions 59,60

Owing to the reactivity of their thiol groups, some protein cysteine residues are particularly prone to oxidation by these molecules

Its not just about restoring colour

Matrix metalloproteinases and plaque destabilization Pathogens and cytokines involved in periodontal disease stimulate the synthesis of matrix metalloproteinases (MMP-2, MMP-8, MMP-9), enzymes that degrade components of the extracellular matrix

Hair research studied across hair-follicle and dermal-papilla models