NAD+ essence: Numbuzin No.9 Bio Lifting Essence review
What is NAD+ and why it's showing up in anti-ageing skincare
NAD+ in cell biology: more than a trendy ingredient
A NAD+ essence is a leave-on skincare product designed to deliver nicotinamide adenine dinucleotide (NAD+) or support its pathways in the skin as part of an anti-ageing routine.
NAD+ (nicotinamide adenine dinucleotide) is present in every cell in the body. It takes part in more than 500 enzymatic reactions, but the two that genuinely matter in dermatology are: repair of UV-damaged DNA (via PARP enzymes) and activation of sirtuins, proteins involved in cellular longevity and inflammation control. This isn't marketing. It's basic biochemistry we've been studying for years in contexts well beyond cosmetics.
From your 30s–40s onwards, tissue NAD+ levels decline progressively. Several studies in animal models and human trials using oral precursor supplements (NMN, NR) suggest that restoring levels can improve mitochondrial function and reduce markers linked with cellular ageing. The question I always ask myself when a product like this lands on the counter is simple: does it work the same way when you put it on the skin?
From oral supplements to topical skincare
The skin has specific transporters (including SLC12A8 for NMN) that can help absorb NAD+ precursors. Niacinamide, which we already know well in dermocosmetics, is effectively an indirect precursor of NAD+ via the salvage pathway. What Numbuzin is proposing with its No.9 is to go one step further and provide the cofactor itself, although free NAD+ skin penetration remains an active area of research. No, not everything is settled yet. But the biochemical logic is sound.
What's inside Numbuzin No.9: key ingredients
NAD+ and synergy with peptides and niacinamide
I've been keeping an eye on Numbuzin for a while since Skin1004 made a lot of noise launching it into the Korean market, and this No.9 is one where I read the label twice. The essence combines NAD+ with niacinamide (vitamin B3) — which acts as an NAD+ precursor via the salvage pathway and has its own evidence base for reducing uneven pigmentation and supporting the skin barrier — plus signalling peptides that stimulate type I and III collagen production in dermal fibroblasts, and adenosine, a purinergic ingredient with modest evidence but recognised in some regulated markets for smoothing fine lines.
Three actives with different mechanisms aiming at the same goal. I like that.
Essence texture: why application format matters
The essence texture (as used in K-beauty) is applied to slightly damp skin after toner. It's more fluid than a typical Western serum. This isn't about aesthetics or ritual: damp skin has higher permeability to hydrophilic molecules such as NAD+, which can translate into better use of the active before you apply more occlusive layers on top.
No fragrance. No artificial colourants. No retinol or exfoliating acids. The tolerability profile is among the cleanest I've seen in active Korean skincare — and sensitive skin tends to appreciate that.
If you use vitamin C as pure L-ascorbic acid in the same routine, apply the two products separately (different times of day or spaced out): niacinamide can reduce ascorbic acid stability when mixed. With stabilised vitamin C forms (ascorbyl glucoside, MAP), this issue is much smaller.
Who Numbuzin No.9 is best for — and who should skip it
Ideal user profile
Numbuzin No.9 NAD Bio Lifting Essence makes most sense from around your early-to-mid 30s onwards, when the first visible signs of photoageing, dullness and loss of firmness often start to appear. If you are looking for active prevention rather than deep correction, this essence fits well: it is a maintenance step, not a rescue treatment.
It is also a very good option for sensitive skin that does not tolerate retinol, strong acids or very active night treatments. The formula is lightweight, layered and generally easy to introduce, which matters when the goal is consistency rather than irritation.
More and more customers come to the pharmacy asking for exactly this: something that supports firmness, texture and radiance without making the skin angry. This is one of the Korean anti-ageing skincare products I would consider when tolerance is a priority.
When it may not be worth it — or when there are better options
If you are under 28 and have no visible photoageing, the difference may be subtle. And if your goal is to improve deep wrinkles, marked pigmentation or established loss of firmness, you may need actives with stronger corrective evidence, such as retinoids, azelaic acid or stabilised vitamin C. Numbuzin No.9 can still be a useful supporting step, but it should not be your only strategy.
Perimenopausal skin is an interesting profile for this type of essence. As skin becomes drier, less resilient and more reactive, a well-tolerated essence with niacinamide, peptides and hydration support can make sense — especially when paired with a stronger peptide cream, a gentle retinoid or a richer moisturiser, depending on tolerance.
How to use Numbuzin No.9 in your routine step by step
Application order in a K-beauty routine and a simpler Western routine
The K-beauty principle is to layer from the lightest texture to the richest. The correct order is: cleanser → toner, if used → Numbuzin No.9 essence → serum, if used → moisturiser → SPF in the morning. If you follow a simpler routine without toner, apply the essence directly to clean, slightly damp skin.
Use 3–4 drops or 1–2 pumps, depending on the dispenser. Press it into the skin with your palms rather than rubbing aggressively. This helps the product sit more comfortably and avoids unnecessary friction, especially if your skin is sensitive.
Start once daily. If your skin tolerates it well — no redness, stinging or tightness — you can move to twice daily. Improvements in texture, hydration and the look of firmness usually need consistent use over several weeks. I would give it at least 6–8 weeks before judging properly.
Common mistakes that reduce results
The mistake I see most often in pharmacy is applying an essence to completely dry skin and then putting sunscreen straight on top without a moisturiser in between. The result can be poorer comfort and a slightly unpleasant film. Always seal with moisturiser, especially if your skin is dry or mature.
NAD-focused formulas and supporting actives can be sensitive to light and heat. Store the product in a cool, dark place and close the packaging properly after each use.
What does the science say about topical NAD+? No exaggeration
Let’s be clear: the direct clinical evidence for topical NAD+ in cosmetic skincare is still more limited than the evidence for ingredients such as niacinamide, retinoids or vitamin C. Much of the discussion around NAD+ in skin focuses on cellular energy, ageing pathways and precursor biology, rather than large, long-term cosmetic trials in finished products.
What is better established is the value of the support ingredients often used in these formulas. Niacinamide is widely used for barrier support, uneven tone and skin comfort. Peptides are used to support a firmer-looking routine. Hydrating ingredients help improve skin texture and make fine lines look less obvious. In this formula, the supporting actives are not just filler — they are what make the product more useful in a real routine.
The word “lifting” in the product name should be understood as a cosmetic claim, not a medical or aesthetic-procedure result. It does not mean the product will behave like an injectable treatment, radiofrequency session or professional procedure. What is reasonable to expect with consistent use is skin that feels more hydrated, looks smoother and may appear firmer or more refreshed over time.
No cosmetic product, regardless of the active ingredient, can replace medical-aesthetic treatments for deep wrinkles or established skin laxity.
Where to buy Numbuzin No.9 with pharmacy reassurance
Numbuzin No.9 NAD Bio Lifting Essence is available at Farma2Go with pharmacy traceability and appropriate storage standards. When buying active Korean skincare from unverified sellers, there is a real risk of poor storage, expired stock, damaged packaging or counterfeit products. With formulas built around sensitive active-style ingredients, storage and traceability are not minor details.
This is one of the products we are asked about most often by customers aged around 35–50 who want anti-ageing skincare without irritation. I especially recommend it to people who already use niacinamide and want a more complete formula, or to those starting an anti-ageing routine and looking for something well tolerated. If you are unsure how to combine it with your current products, contact the Farma2Go pharmacy team and we can help you build the routine properly.
Pharmacy recommendations for adding Numbuzin No.9 to your anti-ageing routine
Numbuzin No.9 NAD Bio Lifting Essence has a sensible formula built around well-known support ingredients such as niacinamide and peptides, alongside a topical NAD-focused positioning that is interesting but should be interpreted realistically. In the 50 ml format, it is a reasonable entry point into Korean anti-ageing skincare for anyone who already has the basics covered: cleansing, moisturising and daily SPF.
My pharmacy recommendation is always the same: before adding this kind of active step, make sure the foundation of your routine is right. If you already use SPF every morning and have a moisturiser that suits your skin, this essence can become the third step. Skincare results come from consistency and patience, not from adding ten products at once.
If you are unsure how to fit Numbuzin No.9 into your current routine, contact us — the Farma2Go pharmacy team can help you choose the right order and combinations.
Comparison table: Numbuzin No.9 NAD Bio Lifting Essence
| Ingredient | Main function | Level of topical evidence |
|---|---|---|
| NAD+ | DNA repair, sirtuin activation | Promising, active research |
| Niacinamide | NAD+ precursor, brightening, barrier | High (multiple RCTs) |
| Signalling peptides | Stimulate collagen synthesis | Moderate (in vitro/in vivo) |
| Adenosine | Softens fine wrinkles | Low–moderate |
| Panthenol (B5) | Hydration, barrier healing | High |
Frequently asked questions
Scientific references
