NAD+ in Skincare: When the Story Travels Faster Than the Evidence

Updated: June 2026  ·  Reading time: approx. 7 minutes  ·  Written by Sarah, Founder of NAYA Skincare

NAD+ is real

Let us be completely fair to the molecule first, because this is not an article about NAD+ being a scam. Nicotinamide adenine dinucleotide (NAD+) is genuinely essential. It sits at the centre of how every cell, including skin cells, converts food into usable energy. It plays a direct role in repairing damaged DNA. It activates sirtuins, a family of proteins involved in cellular maintenance and ageing. And NAD+ levels do decline with age, which is why it has become such a serious focus of longevity research.

All of that is true, and none of it is in dispute. If the question were simply "is NAD+ important," the answer would be an unequivocal yes. But that is not the question skincare needs to answer.

The leap nobody questions

Here is the quiet logical jump that sits underneath most NAD+ skincare: the fact that a molecule is important inside the body does not automatically mean that applying it to the skin recreates the same effect. Importance in biology and effectiveness in a topical formula are two separate things, and the second does not follow from the first.

This is not unique to NAD+. Many ambitious skincare actives face the same basic questions before they can influence a living skin cell:

Crucially, many actives are designed specifically around these challenges - through molecular size, delivery systems, encapsulation, liposomes, or signalling at or near the surface rather than requiring deep penetration. Well-formulated peptides, for instance, are often intentionally small or modified to work at the level they can actually reach. So the issue is not ambition itself, and it is not that these ingredients cannot work. The issue is when marketing skips the delivery question entirely - presenting a molecule's importance in the body as if it automatically transferred to a jar.

The question most NAD+ marketing skips

So the honest question is not "does NAD+ matter." It is: can topical NAD+ reach the cells where it would need to act, in a form they can use?

On current understanding, this is where NAD+ runs into trouble. It is a relatively large, highly water-soluble molecule - characteristics that make passive penetration through the skin barrier challenging. It is also relatively unstable. And evidence that topical NAD+ meaningfully increases intracellular NAD+ levels in living skin cells remains limited - which is the entire premise of the marketing. This does not mean the challenge can never be solved. Delivery technologies continue to evolve, and future formulations may overcome some of these limitations. The real question is whether current products have already done so - and "being actively researched" is not the same as "solved," while most products on shelves today are sold as though the problem were already behind us.

But isn't niacinamide a NAD+ precursor?

This is the usual response, and it deserves a straight answer. Yes - niacinamide (vitamin B3) is one of the building blocks the body uses to make NAD+, so it is correctly described as a precursor. It is also a smaller molecule that penetrates far better than NAD+ itself, and it is one of the most well-evidenced ingredients in all of skincare: genuinely effective for barrier support, redness, tone and texture.

But "precursor" is doing a lot of quiet work in NAD+ marketing. The fact that niacinamide can contribute to NAD+ synthesis in the body does not mean that applying it topically dramatically raises NAD+ inside your skin cells, or that it functions as a back-door NAD+ treatment. The more accurate framing is the simpler one: niacinamide is a proven, valuable ingredient on its own established merits - not because it is a stand-in for a molecule that struggles to get into the skin. Valuing it for the wrong reason is its own small version of the same confusion.

How trends travel through the industry

If the evidence for topical NAD+ is genuinely thin, the obvious question is why so many products feature it. The answer is uncomfortable, and it is the part most brands would never put in writing.

Most skincare trends do not begin with a breakthrough in skin biology. They begin with a supplier presentation. An ingredient manufacturer develops a raw material, commissions supporting data, builds a marketing story around it, and presents that story to brands. The brand adopts the story, the story becomes a claim, the claim becomes a trend.

The problem is not that suppliers innovate. Many genuinely do, and that work matters. The problem is that the marketing story often travels through the industry faster than the evidence does - and somewhere along that path, the original biological question, the one about stability, delivery and bioavailability, quietly gets lost. By the time a consumer encounters the claim on a product page, it may be three or four steps removed from the original biological research - and it carries an authority the evidence may not support.

Presence is not performance

NAD+ may turn out to be another example of a problem that recurs throughout skincare: presence being mistaken for performance. The appearance of an ingredient on a label does not guarantee it is present at a meaningful level, in a stable form, able to reach its target, in a state the cell can use. It only guarantees that it is listed.

This is the same principle behind the do-everything formula and the trend-led hero ingredient. A claim is not a result. A molecule on an ingredient list is not the same as that molecule doing, on your skin, what the marketing implies it does inside a cell.

What actually supports skin over time

None of this means giving up on the goal NAD+ marketing is pointing at - skin that ages well. It means being honest about how that is actually achieved.

Skin health is rarely transformed by a single miracle molecule. It is supported through barrier function, antioxidant protection, daily UV protection, adequate hydration and managing inflammation - and through the genuinely unglamorous foundations underneath all of it: sleep, nutrition, stress, and consistency over months rather than weeks. Real skin biology is usually far less exciting than the marketing built on top of it. It is also far more effective.

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© NAYA Skincare. All information is for educational purposes and does not constitute medical advice.