NAD+ (nicotinamide adenine dinucleotide) is an essential coenzyme found in every cell of the body. It plays a role in numerous biological processes, notably cellular energy production, DNA repair and the regulation of oxidative stress. NAD+ can also be utilised in cosmetics to care for the skin and hair.
The NAD+ supports cellular regeneration, helps repair DNA and combats oxidative stress, thereby contributing to healthier skin.
What are the NAD+ precursors used in cosmetics?
Nicotinamide riboside (NR) and nicotinamide mononucleotide (NMN) are commonly used to enhance NAD+ levels in skin cells.
Can NAD+ help reduce wrinkles?
According to certain studies, the NAD+ could help reduce the visibility of wrinkles by stimulating collagen production.
Are there any NAD+-based dietary supplements?
Yes, NAD⁺-based supplements are available to boost systemic NAD⁺ levels. However, their benefits for the skin have been little explored.
Can NAD+ stimulate hair growth?
According to some promising research, the NAD+ could promote hair growth. However, these effects have yet to be demonstrated in clinical studies.
What is the difference between NAD+ and niacinamide in cosmetics?
NAD+ is an active coenzyme within cells, whereas niacinamide is a form of vitamin B3 that serves as a precursor to its synthesis. In cosmetics, niacinamide is widely used because it is stable, well-tolerated and capable of penetrating the skin. It therefore acts indirectly on the metabolic pathways associated with NAD+.
Is NAD+ suitable for all skin types?
Yes, NAD+ is an active ingredient suitable for all skin types, including sensitive skin. However, it remains essential to carry out a patch test before first use.
Does NAD+ have an effect on skin radiance and complexion uniformity?
Indirectly, yes. By supporting cellular metabolism and repair mechanisms, a sufficient level of NAD+ promotes more efficient skin renewal. This leads to more radiant skin and a more even complexion.
Is NAD+ relevant to helping the skin heal?
Yes, the NAD+ supports skin regeneration and helps maintain adequate hydration levels, two mechanisms essential for effective wound healing.
Is there a link between NAD+ and skin inflammation?
The NAD+ is involved in the regulation of certain inflammatory pathways via the activation of sirtuins. A decrease in its levels is often associated with an exacerbated inflammatory response. We can therefore cautiously hypothesise that NAD+ could be beneficial for skin prone to inflammation or redness.