Every cell in your body runs on a molecule called nicotinamide adenine dinucleotide (NAD+). It is not an ingredient you apply. It is a coenzyme — a helper molecule that enables over 500 enzymatic reactions, from DNA repair to mitochondrial energy production. The problem: NAD+ declines with age. By age 50, levels can drop to half of what they were at 20. And your skin, as the body's most metabolically active organ, feels this decline first.
Nicotinamide mononucleotide (NMN) is the direct precursor to NAD+. When applied topically, NMN is taken up by skin cells and converted into NAD+ through a salvage pathway that bypasses the rate-limiting steps of oral supplementation. The result: more NAD+ available for sirtuins (longevity proteins), PARPs (DNA repair enzymes), and mitochondrial electron transport.
In skin specifically, NAD+ fuels the repair of UV-induced DNA damage, supports fibroblast activity for collagen synthesis, and maintains the ATP levels needed for cell turnover. Without sufficient NAD+, skin cells shift from repair to survival mode — compromising barrier function, slowing renewal, and accelerating visible aging.
Liposomal NMN delivery solves the penetration problem. NMN is a large, charged molecule — it does not cross the stratum corneum easily. Encapsulating NMN in liposomes (phospholipid bilayers that fuse with cell membranes) increases bioavailability to skin cells by up to 20× compared to free-form application. This is why formulation delivery matter as much as ingredient selection.
NMN does not stimulate cells — it enables them. The distinction is critical. NMN provides the fuel; the cell decides what to do with it. This makes it one of the most versatile and safest energy-support ingredients in topical skincare.