HYPE: An NAD+ face serum restores cellular energy and reverses skin ageing.
But what does the evidence actually show?
The biology is interesting; the claimed clinical leap remains unproven. The evidence retrieved does not establish that an ordinary leave-on NAD+ serum reverses ageing in people. Studies of precursors, laboratory skin and microneedling-assisted treatment answer different questions. [1] [2] [3]
A product can improve the feel or appearance of skin without demonstrating that NAD+ reached its intended intracellular target or reversed a biological ageing process.
Why NAD+ sounds persuasive
Nicotinamide adenine dinucleotide, or NAD+, participates in cellular energy metabolism and processes related to repair. Researchers are investigating whether supporting it can improve skin function. But a molecule being important inside a cell does not establish that applying it outside the skin delivers a useful amount to that cell. Stability and penetration are central parts of the problem. [1]
Promising delivery research is not a face-serum trial
A specialised delivery system, not ordinary skincare use
Researchers developed an ion-coupled transfersome formulation to stabilise NAD+ and improve delivery. Cell experiments and porcine and human skin explants showed changes in NAD-related and senescence-associated measurements. These were not controlled wrinkle outcomes in people applying a shop-bought serum. [1]
An explant is tissue studied outside the body. It can help investigate penetration and mechanisms, but it cannot establish how noticeable, durable or safe an everyday cosmetic benefit would be. The carrier itself also matters: a finding for an engineered formulation cannot validate every product listing NAD+ on its label. [1]
What did the human NAD+ procedure measure?
Thirty-six women with melasma received a combined procedure
Over 21 weeks, participants received five microneedling sessions followed by a sterile NAD+ booster. Average Melasma Area and Severity Index scores fell from 16.8 to 6.9. There was no comparison group receiving microneedling alone or a matching vehicle. [2]
Melasma is a pigmentation disorder, not a measure of whole-skin biological age. Without controls, improvement cannot be assigned to NAD+ rather than the procedure, accompanying care or other influences. This is a lead for controlled research, not evidence that an ordinary serum produces the same result. [2]
Precursors are related, but not interchangeable
A 2007 human study of myristyl nicotinate, a nicotinic-acid derivative, reported increased skin NAD and improvements in epidermal and barrier measurements relative to placebo. This supports a particular precursor-delivery approach. It does not establish the efficacy of directly applied NAD+, nor a general reversal of ageing. [3]
Niacinamide is another related ingredient. A 12-week split-face study in 50 women found that 5% niacinamide improved several cosmetic appearance measures versus its vehicle. That trial concerns niacinamide, not NAD+ serum. Sharing a biochemical pathway does not make two ingredients or formulations clinically interchangeable. [4]
The catch: three different claims are often merged
The evidence would need to show, separately, that the finished product delivers its active ingredient, produces a meaningful visible benefit beyond the base moisturiser, and supports any stronger biological-age claim. A change in a cellular marker establishes none of those steps automatically. Searches for topical NAD/NMN/NR clinical outcomes did not identify a published controlled ordinary-NAD-serum trial establishing ageing reversal. This is an evidence gap, not proof that future formulations cannot work.
What this means for you
If considering a product, ask for a controlled human trial of the actual formulation and the outcome you care about. “Supports NAD” is less informative than a clear comparison against the same cream without the active ingredient.
Do not use a cosmetic serum as a home microneedling solution: the published procedure used a sterile booster in a clinical setting, which does not establish the safety of pushing ordinary cosmetics through the skin. [2]
For related questions, read our NAD+/NMN supplements investigation and at-home skin-booster devices investigation. Oral supplementation, topical delivery and needling are distinct interventions.
NAD+ is important cellular biology. Reversing skin ageing with a face serum is a separate claim that still needs convincing human evidence.
Frequently asked questions
Is niacinamide the same as NAD+?
No. Niacinamide is a vitamin B3 form and NAD-related precursor, with its own topical clinical research. Its results cannot simply be transferred to NAD+ products. [3] [4]
Does the melasma study prove NAD+ serum works?
It studied microneedling plus a sterile booster without a control group. It cannot isolate the booster’s contribution or establish ordinary serum efficacy. [2]
Can a serum improve appearance without reversing ageing?
Yes. Appearance, hydration, cellular biomarkers and biological-age reversal are different outcomes. A product needs evidence for the specific promise it makes.
Research & Sources
1. Kang S, Wei S, Koo BI, Jo Y, Park J, Xue Y, Ye S, Park J, Hwang BW, Kim JH, Jeong E, Kim J, Kang NG, Jun SH, Ryu D. (2026). Ion-coupled transfersome complexes for enhanced transdermal NAD+ repletion and mitigation of cellular senescence signatures. Materials today. Bio.
Published full text assessed via Europe PMC; preclinical and ex vivo evidence.
Read the original source ↗2. Yi KH, Wan J, Hwang S. (2026). Efficacy and Safety of a Topical Nicotinamide Adenine Dinucleotide Skinbooster for the Treatment of Melasma. Aesthetic plastic surgery.
Published abstract assessed; uncontrolled combined-procedure case series.
Read the original source ↗3. Jacobson EL, Kim H, Kim M, Williams JD, Coyle DL, Coyle WR, Grove G, Rizer RL, Stratton MS, Jacobson MK. (2007). A topical lipophilic niacin derivative increases NAD, epidermal differentiation and barrier function in photodamaged skin. Experimental dermatology.
Published abstract assessed.
Read the original source ↗4. Bissett DL, Oblong JE, Berge CA. (2005). Niacinamide: A B vitamin that improves aging facial skin appearance. Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.].
Published abstract assessed.
Read the original source ↗Evidence reviewed: October 2026
This targeted editorial review considered research available on 16 October 2026. It is not an exhaustive systematic review. Abstract-only assessments and indirect evidence are identified above. Evidence vs Hype provides education, not individual diagnosis or treatment. Featured artwork is conceptual and is not a study result. No commercial product was selected or endorsed.