No. 9 NAD+ BIO Lifting-sil Essence
Peptide Powerhouse
Verified reviewer
Pros & cons.
- +Fifty individual peptides targeting multiple anti-aging pathways simultaneously at an under-$30 price
- +NAD+ and resveratrol create a synergistic sirtuin-activation approach to cellular anti-aging
- +Impressive antioxidant lineup including astaxanthin, glutathione, CoQ10, and alpha-lipoic acid
- +Novel thread-like elastic texture provides immediate tactile firming sensation
- +Fragrance-free and alcohol-free formulation suitable for most skin types
- +Five bio-available mineral ferments deliver trace minerals through enhanced delivery
- +Price-to-ingredient-complexity ratio is unmatched in the anti-aging category
- −Fifty peptides means each is present at very low concentration — likely below individually studied efficacy thresholds
- −Topical NAD+ has limited clinical evidence for skin penetration and cellular effects
- −Thread-like texture is unusual and may not appeal to everyone's sensory preferences
- −Contains dimethicone and silicone crosspolymer which some users prefer to avoid
- −Clinical wrinkle-reduction claims cannot be independently verified from available data
The full review.
Start with the most important number: fifty. This serum contains fifty individual peptides. This isn’t marketing math or a typo; the Numbuzin No. 9 NAD+ BIO Lifting-sil Essence ingredient list names fifty distinct peptide compounds, ranging from Acetyl Hexapeptide-8 (Argireline) to Sh-Polypeptide-22. This list makes cosmetic chemists either impressed or skeptical, and the truth likely sits in the middle.
The premise uses longevity science. NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme central to anti-aging research. It supports mitochondrial function, DNA repair, and cellular energy production, but levels drop with age. Oral NAD+ precursors like NMN and NR are popular in longevity circles, and the skincare industry now uses topical formulations. Whether NAD+ penetrates skin deeply enough to reach cells remains an open question, but the theoretical framework is sound.
Numbuzin does not rely solely on NAD+. The fifty-peptide complex provides multiple anti-aging signaling pathways. Acetyl Hexapeptide-8 (Argireline) acts as a neurotransmitter inhibitor to relax expression lines. Palmitoyl Tripeptide-5 activates TGF-beta to stimulate collagen. Copper Tripeptide-1 promotes wound healing and collagen remodeling. Dipeptide Diaminobutyroyl Benzylamide Diacetate (SYN-AKE) mimics snake venom peptides to reduce muscle contraction. Palmitoyl Pentapeptide-4 (Matrixyl) stimulates collagen and fibronectin synthesis. Each peptide targets a different part of the skin aging process.
The question is the concentration of each peptide. At fifty peptides, levels are likely very low. If the total peptide fraction is 1-2% of the formula, each peptide sits at roughly 0.02-0.04%. For context, Argireline is typically studied at 5-10%. This may matter less than purists think. Peptides are signaling molecules that communicate with cells rather than using brute-force chemistry. Even at trace levels, multiple peptides may create cumulative signaling effects similar to fewer peptides at higher concentrations. This is the formula’s hypothesis.
The antioxidant package is also strong. Resveratrol activates sirtuins—the same enzymes NAD+ fuels—to create a synergistic loop. Astaxanthin provides free-radical protection reportedly hundreds of times more effective than vitamin E. Glutathione adds antioxidant protection and tyrosinase inhibition for brightening. Thioctic acid (alpha-lipoic acid) is both water- and fat-soluble, making it a versatile antioxidant. Ubiquinone (CoQ10) supports mitochondrial energy production. This antioxidant lineup matches serums priced over $100, despite this being under $30.
Five Saccharomyces ferments (copper, iron, magnesium, silicon, zinc) deliver bio-available trace minerals. A fermentation process improves their skin penetration. This technique uses the fermented skincare tradition specifically for mineral delivery rather than probiotic benefits.
The texture is unique in K-beauty. The “lifting-sil” name refers to its elastic, thread-like quality. When pumped onto fingers, the essence stretches into fine threads instead of flowing like a liquid. It melts into a smooth, non-sticky layer that feels immediately firm. This elastic film holds active ingredients against the skin to extend contact time. The lifting sensation is noticeable but comfortable.
Shea butter and dimethicone create a protective, emollient base. The essence feels substantial rather than watery, though it isn’t heavy. Skin feels nourished. Niacinamide supports barrier function and ceramide production, while sodium hyaluronate and beta-glucan provide humectant hydration.
Numbuzin claims clinical testing shows wrinkle reduction across eleven facial zones in four weeks. Without study details—like sample size, methodology, or independent controls—treat these claims with skepticism. User feedback is more telling: reports include firmer skin, improved fine lines, and increased luminosity over several weeks.
At $26 for 50ml, this product is either extraordinary value or micro-dosing. It is likely both. The ingredient list is ambitious, and the price-to-ingredient-complexity ratio is unmatched. Whether fifty peptides at micro-concentrations beat five peptides at higher concentrations is still debated in cosmetic chemistry. For consumers betting on breadth over depth, this is an affordable option.
Ingredient analysis.
Full INCI list
Water, Glycerin, Hydrogenated Poly(C6-14 Olefin), Polyglycerin-3, Butylene Glycol, Pentaerythrityl Tetraethylhexanoate, Propanediol, Dimethicone, 1,2-Hexanediol, Niacinamide, Methylpropanediol, Cetearyl Alcohol, Glyceryl Stearate, Hydrogenated Vegetable Oil, Polyglyceryl-3 Methylglucose Distearate, Butyrospermum Parkii (Shea) Butter, Dimethicone Crosspolymer, Ammonium Acryloyldimethyltaurate/VP Copolymer, Sodium Polyacrylate, Hydrogenated Lecithin, Carbomer, Xanthan Gum, Pentylene Glycol, Tromethamine, Ethylhexylglycerin, Adenosine, Palmitic Acid, Stearic Acid, Sodium Phytate, Cholesterol, Sodium Hyaluronate, Adenosine Triphosphate, Hydroxypropyl Cyclodextrin, Nicotinamide Adenine Dinucleotide, Beta-Glucan, Tocopherol, Palmitoyl Tripeptide-5, Copper Gluconate, Saccharomyces/Copper Ferment, Saccharomyces/Iron Ferment, Saccharomyces/Magnesium Ferment, Saccharomyces/Silicon Ferment, Saccharomyces/Zinc Ferment, Capryloyl Dipeptide-17, Thioctic Acid, Leuconostoc/Radish Root Ferment Filtrate, Glutathione, Tremella Fuciformis (Mushroom) Extract, Haematococcus Pluvialis Oil, Potassium Hydroxide, Resveratrol, Hesperidin Methyl Chalcone, Sorbitan Laurate, Steareth-20, Astaxanthin, Sodium Lactate, Hydroxyethylcellulose, Acetyl Dipeptide-1 Cetyl Ester, Dipeptide Diaminobutyroyl Benzylamide Diacetate, Heptasodium Hexacarboxymethyl Dipeptide-12, Panthenol, Polysorbate 20, Sodium Citrate, Chlorhexidine Digluconate, Dextran, Hexapeptide-2, Magnesium Chloride, Tetradecyl Aminobutyroylvalylaminobutyric Urea Trifluoroacetate, Acetyl Tetrapeptide-5, Dipeptide-2, Potassium Sorbate, Acetyl Hexapeptide-8, Palmitoyl Dipeptide-5 Diaminobutyroyl Hydroxythreonine, Citric Acid, Biotin, Palmitoyl Tetrapeptide-7, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3, Trifolium Pratense (Clover) Flower Extract, Tocopheryl Acetate, Palmitoyl Tripeptide-8, Dipeptide-4, Hexapeptide-11, Pentapeptide-18, Tripeptide-3, SH-Decapeptide-7, SH-Octapeptide-4, Palmitoyl Tripeptide-1, Ascorbic Acid Polypeptide, Hexapeptide-9, Oligopeptide-3, Palmitoyl Hexapeptide-12, Tripeptide-1, Palmitoyl Pentapeptide-4, Ubiquinone, Copper Tripeptide-1, Caffeoyl Tripeptide-1, Caffeoyl SH-Octapeptide-4, Galloyl Pentapeptide-33, Kojyl Carboxy Dipeptide-23, Nicotinoyl Tripeptide-1, Octapeptide-7, Oligopeptide-1, Sh-Decapeptide-9, SH-Oligopeptide-9, SH-Pentapeptide-19, Asparagine, Glutamine, Tryptophan, Oligopeptide-2, SH-Oligopeptide-1, SH-Oligopeptide-2, SH-Polypeptide-1, Sh-Polypeptide-22, SH-Polypeptide-3, Acetyl Octapeptide-3, Acetyl Tetrapeptide-2, Acetyl Tetrapeptide-9, Carnosine, Nonapeptide-1
Skin match.
The science.
The Science
NAD+ (Nicotinamide Adenine Dinucleotide) research focuses on cellular aging. A 2013 study in Cell shows declining NAD+ levels drive mitochondrial dysfunction during aging; restoring NAD+ levels in mice reversed age-related changes. Topical NAD+ delivery faces bioavailability hurdles because the molecule is large and hydrophilic, which limits skin penetration. This formula uses hydroxypropyl cyclodextrin to enhance delivery, as cyclodextrins improve transdermal delivery of hydrophilic molecules.
The peptide complex contains several well-studied compounds. A 2002 study in the International Journal of Cosmetic Science validated Acetyl Hexapeptide-8 (Argireline), showing wrinkle depth reduction of up to 30% over 30 days at 10% concentration — much higher than its likely concentration in this formula. The International Journal of Cosmetic Science (2005) studied Palmitoyl Pentapeptide-4 (Matrixyl), which stimulates collagen I, III, and IV synthesis and fibronectin production in fibroblast cultures.
Copper Tripeptide-1 (GHK-Cu) has strong evidence. Research in the Journal of Biomaterials Science (2008) shows it activates over 4,000 human genes, promoting tissue remodeling, anti-inflammatory responses, and stem cell activity. Its signaling potency is well-documented even at low concentrations.
Sirtuin biology supports the resveratrol-NAD+ combination. Resveratrol activates SIRT1 (a sirtuin enzyme), and NAD+ is the essential cofactor sirtuins require to function. A 2006 study in Nature showed resveratrol improved health and survival in mice via SIRT1 activation. Using both the activator (resveratrol) and the cofactor (NAD+) is a logical synergistic approach.
References
- Declining NAD+ induces a pseudohypoxic state disrupting nuclear-mitochondrial communication during aging — Cell (2013)
- An anti-wrinkle peptide Argireline: in vivo results — International Journal of Cosmetic Science (2002)
- GHK-Cu may prevent oxidative stress in skin by regulating copper and modifying expression of numerous antioxidant genes — Cosmetics (2015)
Dermatologist Perspective
Dermatologists see the theoretical promise of NAD+ for cellular aging, but topical delivery is unproven in clinical settings. Board-certified dermatologists view the fifty-peptide approach with cautious interest — the individual peptides are well-studied, but micro-concentrations raise efficacy questions. However, dermatologists following Korean anti-aging innovation note that multi-peptide formulations are an emerging approach that may work through cumulative signaling even at low individual concentrations. The supporting ingredients — niacinamide, adenosine, resveratrol — are independently validated and provide reliable anti-aging benefit regardless of peptide performance.
Where it fits in your routine.
Pump 1-2 times onto fingertips. The thread-like texture stretches between your fingers; this is intentional. Press and pat onto face and neck after toner and water-based treatments. Pat instead of rubbing to work with the elastic texture. Wait 30-60 seconds to absorb, then apply moisturizer. Use morning and evening.
At $26.40 for 50ml, this anti-aging serum has more ingredients than most consumer-priced options. Western clinical brands sell peptide-dense formulations for $100-300. Even if individual peptide concentrations are low, the formulation — NAD+, 50 peptides, resveratrol, astaxanthin, glutathione, CoQ10, alpha-lipoic acid, five mineral ferments — shows high ambition for the price. Whether this ambition yields proportional efficacy remains an open question, but the value proposition is undeniable.
This is for people seeking cutting-edge anti-aging skincare and NAD+ or multi-peptide formulations without clinical-brand prices. It works for ages 30+ addressing early aging signs and for skincare enthusiasts who value ingredient innovation and complexity.
If you prefer conservative skincare with proven concentrations of individual actives (like a straightforward retinol or vitamin C serum), the speculative nature of NAD+ and micro-dosed peptides may not satisfy. Skip this if you dislike unusual product textures—the thread-like consistency is polarizing.
Product details.
All Year
The backstory.
Numbuzin's No. 9 line represents their anti-aging pillar, and this essence is its most advanced expression. Inspired by the longevity science trend — particularly the role of NAD+ in cellular aging — it translates cutting-edge biochemistry concepts into an accessible K-beauty format. The 50-peptide complex is a deliberate statement: if peptides work, why use three when you can use fifty?
About Numbuzin
Established Brand (5–20 years)Numbuzin launched in 2019 via Korea's Benow Inc. The No. 9 NAD+ line is the brand's most ambitious anti-aging series. It uses a 50-peptide complex and NAD+ — ingredients at the edge of longevity skincare. Clinical testing shows wrinkle reduction across 11 facial zones.
Common myths.
Fifty peptides work better than five because they have higher quantity.
Peptides require sufficient concentration to work. With 50 peptides on the label, individual concentrations are likely very low. The formula's efficacy comes from the cumulative effect of multiple signaling peptides instead of any single peptide reaching therapeutic levels.
Topical NAD+ can reverse aging at the cellular level.
NAD+ is important for cellular metabolism and declines as you age, but researchers are still studying topical NAD+ delivery and penetration. Oral NAD+ precursors (like NMN) have stronger evidence than topical application. This formula's anti-aging benefits likely come from the peptide complex and proven actives like niacinamide and adenosine.
FAQ.
About NAD+ and does it work in skincare?
NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme that drives cellular energy production and DNA repair, but levels decline as you age. Oral NAD+ precursors show promise in longevity research, but topical NAD+ is emerging and lacks clinical evidence for skin penetration. This formula uses 50 proven peptides alongside NAD+.
Why does this essence have a stringy, thread-like texture?
Specific polymer ingredients create the 'lifting-sil' texture by forming elastic threads when stretched. This forms a temporary firming film on the skin surface. The film provides an immediate tightening sensation while active ingredients absorb. This technique works by helping actives stay in contact with skin longer.
Are 50 peptides really better than a formula with 5 peptides?
Not necessarily. Each peptide requires a specific concentration to work. When 50 peptides share label space, each exists at very low levels. This strategy uses breadth over depth to target many anti-aging pathways at once with multiple signaling peptides. The cumulative effect may offset lower individual concentrations.
Can I use this essence with retinol?
Yes — the peptide-rich formula works well with retinoids. Use the essence on nights you skip retinol, or apply the essence first as a buffer layer. The niacinamide, panthenol, and shea butter in the formula help skin tolerate retinoid irritation.
Is this clinically tested?
Numbuzin claims clinical tests show a reduction in 11 types of facial wrinkles over 4 weeks. The specific study design, sample size, and whether the study was independent or brand-sponsored are not public for verification.
What the community says.
"Unique elastic thread-like texture that feels luxurious"
"Skin feels noticeably firmer and more supple after consistent use"
"Impressive ingredient list for the price point"
"Non-sticky despite rich texture"
"Visible improvement in fine lines after 4-6 weeks"
"Fifty peptides at unknown concentrations raises questions about efficacy per peptide"
"NAD+ topical evidence is still emerging and unproven"
"Thread-like texture takes getting used to"
"May feel too rich for oily skin in humid weather"
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