NMN (nicotinamide mononucleotide) is a naturally occurring molecule that your body converts into NAD+, a coenzyme involved in over 500 cellular reactions. NAD+ fuels energy production, activates Sirtuin proteins responsible for DNA repair, and supports metabolic regulation. Supplementing with NMN provides cells with the direct precursor they need to restore declining NAD+ levels.

Biological aging is driven by three interconnected mechanisms: oxidative stress (free radical damage to DNA and cell membranes), NAD+ decline (which impairs Sirtuin-driven DNA repair and energy production), and cellular senescence (the accumulation of "zombie cells" that release inflammatory signals damaging healthy tissue). The Solensis supplement line is built around compounds that target each of these pathways.

NAD+ levels drop by approximately 50% between age 20 and 60. This happens because NAD+ consumption increases with age (through enzymes like CD38 and PARPs responding to accumulated DNA damage) while production slows. The result is reduced cellular energy, impaired DNA repair, and diminished Sirtuin activity, all of which accelerate visible and functional aging.

Senolytics are compounds that selectively clear senescent cells from the body. Senescent cells stop dividing but remain metabolically active, secreting pro-inflammatory molecules (called SASP) that damage surrounding healthy tissue. Quercetin and berberine are two naturally occurring senolytic compounds. This is an emerging and largely uncontested category in consumer supplementation.

Multiple human clinical trials have found NMN supplementation to be well tolerated at doses up to 900 mg daily for 60 days, with no clinically significant adverse effects. In October 2025, the FDA confirmed that NMN is lawful for use in dietary supplements in the United States. As with any supplement, individuals on medication or undergoing cancer treatment should consult their healthcare provider.

Topical NMN delivers nicotinamide mononucleotide directly to skin cells, where it converts to NAD+ and activates cutaneous Sirtuins involved in DNA repair and collagen maintenance. Skin cell repair peaks between 11 PM and 4 AM, which is why NAD+ skincare applied before bed aligns with the body's natural regeneration cycle. This approach targets skin aging at the cellular level rather than the surface.

Look for pharmaceutical-grade NMN with purity of 98% or higher, verified by an independent third-party lab with a published Certificate of Analysis. GMP-certified manufacturing, FDA-regulated facilities, and US-based production add additional quality assurance. Avoid brands that cannot name their testing laboratory or provide specific purity documentation.