NAD+ skincare: Numbuzin No.9 range review (2026)
When an ingredient like NAD+ jumps from cellular longevity labs into a K-Beauty essence for under €21, the real question isn’t whether it sounds good. It’s whether the formula is built to make it work in practice. That’s exactly what we’re going to assess with Numbuzin’s No.9 range.
No.9 is the most requested line from the brand in pharmacy, and I understand why: it combines an ingredient with plenty of media noise (NAD+ in “longevity” skincare) with very direct naming—Bio Lifting, Volumetox, Anti-ageing—that immediately signals who it’s for. What marketing tends not to spell out is the technical nuance: free NAD+ penetrates poorly due to its molecular size, so the real-world effect depends on a smart stack of complementary actives.
This guide solves two things. First, what each of the four key products in the No.9 line actually does—the essence, the eye cream, the patches and the mask—and how they fit together. Second, how to choose the right product based on your age, goal and budget, without buying the whole range at once. Pharmacist honesty from paragraph one.
What is NAD+ and why it’s showing up in anti-ageing skincare
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell in the body. It’s involved in more than 500 enzymatic reactions, but the two that matter most in dermatology are: repair of UV-damaged DNA via PARP enzymes, and activation of sirtuins, proteins that regulate cellular longevity and inflammation. This isn’t marketing—it’s biochemistry we’ve been studying for years in contexts far beyond cosmetics.
From your 30s–40s onwards, tissue NAD+ levels progressively decline. Several studies on oral supplementation with precursors—NMN, NR—suggest that restoring those levels can improve mitochondrial function and reduce markers associated with cellular ageing (Verdin, Science, 2015; Yoshino et al., Cell Metabolism, 2018). The question when it arrives in topical skincare is: does it work the same way when applied to skin?
The honest answer is that free NAD+, because of its molecular size, doesn’t cross the stratum corneum as easily as (for example) low molecular weight hyaluronic acid. But modern formulas don’t rely on isolated NAD+: they use precursors (niacinamide, NMN) and encapsulation technologies that can meaningfully improve topical bioavailability. The No.9 line also adds firming peptides and PDRN (polynucleotides) to build a stack where each active covers what another can’t reach. It’s not magic—but the scientific rationale holds up to scrutiny.
The Numbuzin No.9 range: four products designed as one system
One of Numbuzin’s strengths is that its lines aren’t random one-off launches. The No.9 range is designed to work as a system: the essence is the core treatment, the eye cream extends coverage to periocular skin, the patches are a targeted booster or pre-event option, and the mask acts as a weekly boost for the jawline/face contour area. Each product has a defined role, and actives are intended to reinforce each other step-by-step.
The clinical way to build this without buying everything at once is straightforward: start with the essence, use it daily for 6–8 weeks, and only then decide whether adding the eye cream (fine lines around eyes) or the mask (early laxity around the lower face) makes sense for you. The patches are the most optional—useful pre-event, but not structurally essential in a routine.
NAD Bio Lifting Essence: review of the core treatment
This is the centrepiece of the line. If you’re only buying one No.9 product, make it this one—especially if you’re looking for a NAD+ serum alternative with a lighter texture. The essence combines NAD+ as a cellular longevity-focused active, niacinamide (also a NAD+ precursor via the salvage pathway), and firming peptides such as acetyl hexapeptide-3 with documented evidence for reducing expression lines (Blanes-Mira et al., Int J Cosmet Sci, 2002). Three actives with different mechanisms aiming at one outcome.
The texture is fluid—what I’d call a true Korean-style essence rather than a thick serum being labelled as an essence. It absorbs quickly, leaves no residue, and you can layer it without overloading your skin. The best technique is gentle patting onto slightly damp skin (after toner; don’t rub), because hydrated skin has higher permeability for hydrophilic molecules like NAD+. It’s a small detail many brands don’t explain—and it changes how much you get out of the formula.
At €20.10 for 50 ml, it sits within market expectations and competes well against European products with comparable actives. But results won’t appear in 7 days—the data around topical NAD+ approaches and peptides points more towards visible improvements between weeks 4 and 8 with daily use without skipping nights. Consistency isn’t optional; it’s part of “the formula”.
NAD+ Retinol Volumetox Eye Cream: retinol without periocular drama
The skin around your eyes has fewer sebaceous glands, a thinner stratum corneum and tends to be more reactive than the rest of your face. That’s why many formulators either avoid retinol there entirely or include it at levels that do very little. Both extremes miss the point.
Numbuzin pairs retinol in this No.9 eye product with NAD+, which acts as a modulator of oxidative stress and can help reduce irritation that retinol often triggers in that area. Pharmacologically it makes sense: NAD+ isn’t there as decoration—it’s there to buffer local inflammatory response that retinoids can provoke. The name Volumetox refers to peptides that superficially mimic muscle-relaxation effects on expression lines. It is not Botox—let’s be absolutely clear about that. But for people with fine periocular lines and mild volume loss, cumulative change over 6–8 weeks can be noticeable.
A practical point: a 10 ml tube typically lasts around 6–8 weeks with daily use on both eyes. To start, I recommend applying it every third night for the first 2 weeks and assessing periocular tolerance before moving towards daily use. And never apply on the mobile eyelid: retinol can worsen irritation if you have dry eye or blepharitis.
NAD+ Eye Patches: targeted booster or pre-event option
The NAD+ patches are the most “specific” format in this line—useful if you want an immediate cosmetic boost from under-eye patches. Five pairs per box at €13.14 is very affordable for what they do on small areas. They’re an occlusive hydrogel system that releases NAD+ slowly over 15–20 minutes of wear time. Occlusion increases local penetration compared with an eye cream alone, which makes them a good add-on to the No.9 eye cream for specific situations: pre-event prep, tired-looking under-eyes after poor sleep, or a weekly booster in more mature skin.
I don’t recommend them as an everyday product because cost-per-use climbs quickly—but as an occasional boost alongside an eye routine they work well. The logic here is: daily NAD+ eye cream + weekly patches, not patches replacing your eye cream.
Bio Full Face Mask: intensive support for jawline and lower face
This mask is one of the most interesting parts of the line for three technical reasons. First: it contains 48 ml of serum per mask—nearly double typical market standards (20–30 ml). Any excess after 20–25 minutes can be used as your first layer in an evening routine—you don’t waste it; you use it properly. Second: the fabric design extends down towards the neck with a cut intended to create mechanical tension across the jawline area while Bio Lifting actives absorb. Cutaneous mechanotransduction—the way fibroblasts respond to physical stimuli—can stimulate collagen synthesis, and there is documented scientific basis for this concept.
Is it a surgical lift? No—not even close. Is “jawline lifting” pure marketing? Also no—the combination of tension plus firming actives applied specifically over that area has plausible rationale. Think of it as a weekly intensive treatment rather than something you do daily; and as a complement to daily NAD+ essence use it gives a boost that won’t hold long-term if you don’t have a consistent base routine underneath.
How to choose and combine No.9 products based on your goal
Three profiles I see every week in pharmacy—and how I’d build No.9 around them:
- Starting out with mature skin and visible loss of firmness: use NAD Bio Lifting Essence alone for 4–6 weeks. If response is good, add the NAD+ Retinol eye cream into your night routine from week 6 onwards.
- You already have an established anti-ageing routine and want an active boost: daily essence + Bio Full Face mask once weekly on clean skin. The essence builds sustained baseline change; the mask accelerates perceived results.
- A one-off pre-event or pre-photo need: NAD+ patches the night before + Bio Full Face mask on event morning. This isn’t structural treatment—it’s short-term cosmetic optimisation—and used like that it performs well.
What doesn’t make sense: buying all four products at once because someone online told you to, without testing your base first. The essence is the core; everything else sits on top.
What science says about topical NAD+ (without exaggeration)
I’ll be direct here. Evidence specifically on topical NAD+ itself is more limited than evidence on its precursors (topical niacinamide; oral NMN/NR) or on firming peptides used in cosmetics more broadly. Much of what’s published is in vitro (cell culture) or animal-model work. Human clinical trials using topical NAD+ within cosmetic formulations are still limited overall, often with small sample sizes and mixed methodologies.
What is well-evidenced: topical niacinamide improves barrier function, reduces hyperpigmentation and has modest anti-inflammatory effects (Hakozaki et al., 2002; Bissett et al., 2005). Signalling peptides such as acetyl hexapeptide-3 have in vivo evidence for reducing expression lines. And PDRN, which appears across other No.9 products, has robust evidence when used injectably plus early positive topical data—so these “support actives” aren’t filler; they’re there for a reason.
The word “lifting” in product naming is cosmetic language rather than an MHRA-regulated medical claim. Expecting tightening equivalent to invasive aesthetic medicine is simply the wrong expectation—and I’m not going to sell you that idea here. What is reasonable after consistent use over 6–8 weeks: improved texture, measurable hydration improvements and perceived firmness gains. No more; no less.
When No.9 isn’t the answer—and when to speak to a doctor
The No.9 line is active skincare intended for healthy skin showing cosmetic signs of ageing. There are situations where persisting with cosmetics delays getting appropriate care:
- Established laxity with obvious lower-face sagging plus deep-set lines: skincare can support but won’t replace medical-aesthetic options (HIFU, radiofrequency treatments, thread lifts) or surgery.
- Significant established melasma-type pigmentation: niacinamide may help maintenance but correction often needs prescription options such as hydroquinone or azelaic acid under medical guidance.
- Active dry eye disease, blepharitis or chronic ocular sensitivity: relative contraindication for retinol near eyes—consider an optometrist/ophthalmology review before introducing it.
- Pregnancy and breastfeeding: as a precaution avoid retinol-containing eye products during these months; non-retinol products like an essence or mask are generally considered safer options but confirm with your midwife/doctor.
- You need dramatic change within 2–4 weeks: if timing matters urgently for an event, aesthetic medicine—not active skincare—is usually what delivers fast visible change.
This isn’t me telling you to abandon Numbuzin—it’s me drawing a boundary line clearly. A well-used No.9 routine on mature skin with cosmetic ageing signs can give visible, sustainable improvement by week 8—but it won’t fix established laxity or active pathology.
My final pharmacist recommendation
Numbuzin’s No.9 range is one of today’s more pharmacologically coherent K-Beauty anti-ageing options available through pharmacy channels: NAD+ plus peptides plus niacinamide in an essence format, supported by well-designed add-ons for periocular skin and lower-face contour care. Expect visible change between weeks 4 and 8 with consistent use—no shortcuts.
My practical recommendation: start with NAD Bio Lifting Essence as your only No.9 product for 6 weeks first. Reassess honestly at that point. If response is good, add either the eye cream or mask depending on your main need (periocular lines → eye cream; early jawline/lower-face laxity → weekly mask). The patches are optional extras I only suggest for specific profiles.
And keep your wider routine solid: thorough evening cleansing, daily SPF without exception (this matters more than any “longevity” ingredient), plus niacinamide support if appropriate—for example via Numbuzin No.3 Skin Softening—to reinforce NAD+ pathways through salvage mechanisms within skin biology itself (NAD booster skincare, done sensibly). If you want to see how No.9 fits alongside other Numbuzin lines so you can build one coherent routine end-to-end, the complete Numbuzin guide explains their numbering system and which combinations make sense by skin type.
A hug!!
Numbuzin No.9 NAD+ line: comparison of the 4 anti-ageing products
| Product | Main active | Price | Role in routine | Who it is for |
|---|---|---|---|---|
| Numbuzin No.9 NAD Bio Lifting Essence 50ml | NAD+ + firming peptides + niacinamide | 20,10 € | Daily active treatment (post-toner) | Active anti-ageing, mature skin or loss of firmness |
| Numbuzin No.9 NAD+ Retinol Volumetox Eye Cream 10ml | NAD+ + encapsulated retinol + peptides | 21,93 € | Night-time anti-ageing eye cream | Fine peri-orbital lines, mild volume loss, mature skin |
| Numbuzin No.9 NAD+ Eye Patches (5 pairs) | NAD+ in occlusive hydrogel | 13,14 € | Weekly or pre-event booster | Occasional hollow-looking dark circles, top-up for eye cream |
| Numbuzin No.9 Bio Full Face Sheet Mask (48ml × 4) | Bio Lifting complex with mechanical tension | 16,48 € | Weekly intensive treatment | Facial oval, double chin, pre-event, boost to the No.9 routine |
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