No. 9 NAD+ BIO Lifting-sil Full Face Mask
K-Beauty Lifting Innovation
Verified reviewer
Pros & cons.
- +Triple delivery system (NAD+ capsules, PLA threads, lifting band) is unlike any other sheet mask
- +Immediate visible lifting and firming effect on jawline and lower face after removal
- +Premium ingredient roster matching the No. 9 Essence — NAD+, 50 peptides, mineral ferments
- +Two-piece design covers entire face including the often-neglected jawline area
- +Soft, breathable mask material that stays in place without slipping during 40-minute wear
- +Fragrance-free and alcohol-free formulation gentle enough for most skin types
- +Reusable lifting band reduces waste across multiple sessions
- −At $5.50 per use, costs add up quickly with recommended 2-3 times weekly use
- −40-minute wear time is a significant commitment compared to standard 15-20 minute masks
- −Lifting and firming effects are temporary without consistent regular use
- −Topical PLA cannot replicate the depth or duration of injectable PLA treatments
- −Physical lifting band may feel uncomfortable for those sensitive to facial compression
The full review.
Sheet masks have a perception problem. Many Western skincare consumers view them as novelty items—fun for a self-care Sunday, photographed for Instagram, then tossed. The Numbuzin No. 9 NAD+ BIO Lifting-sil Full Face Mask tries to change that narrative with interesting technology.
The concept uses a three-part delivery system. The upper mask sheet contains NAD+ encapsulated in BIO capsules that release during the 30-40 minute wear time, plus the same multi-peptide complex found in the No. 9 Essence. The lower mask sheet—covering the jawline, chin, and lower cheeks—contains dissolvable polylactic acid (PLA) threads that melt during wear to deposit a collagen-stimulating polymer onto the skin. A physical lifting band straps under the chin and over the head, providing mechanical compression to the lower face.
The PLA thread technology is the most novel element. Polylactic acid is used in aesthetic medicine as the active ingredient in Sculptra, an injectable filler that stimulates collagen production over months. A sheet mask cannot replicate what an injection achieves deep in the dermis. However, topical application creates a temporary firming film on the skin surface and provides mild collagen-stimulating signals to the upper layers of the epidermis. It borrows from the clinic rather than replacing it; this distinction sets realistic expectations.
Using this mask feels different from using a standard sheet mask. The two-piece design requires orientation: the upper sheet covers the forehead, eyes, and cheeks, while the lower sheet wraps the jawline and chin. Once applied, the lifting band straps on, creating noticeable compression that holds everything in place. It feels like a gentle, sustained hug for your face. It is not uncomfortable, but it is present. You are aware you are wearing it more than a regular sheet mask.
The 30-40 minute recommendation is longer than most sheet masks and serves a function. The PLA threads need time to dissolve completely, and the extended contact time allows the NAD+ and peptide complex more time to interact with skin cells. This is a commitment mask, not a product for the impatient.
Removal shows immediate results. Skin looks firmer, more defined around the jawline, and plumped with hydration. The remaining essence absorbs quickly when patted in. You see a visible glow from increased hydration, the PLA film, and the lifting compression. The effect is temporary, lasting several hours to a day, but it is visible. This mask delivers as a pre-event treatment.
The formulation mirrors the No. 9 Essence in ambition: NAD+, multiple peptides, five mineral ferments, resveratrol, hydrolyzed collagen, trehalose, panthenol, and adenosine. This premium ingredient roster is impressive for a single-use sheet mask. Whether these actives penetrate meaningfully during a 40-minute application is a fair question, but the extended wear time helps compared to the 15-20 minutes of standard masks.
The mask material is well-constructed. It is soft, breathable, and stays in place without slipping. The fit covers the entire face, including the jawline where sagging and loss of definition appear first.
At $22 for four masks (roughly $5.50 per use), this is on the premium end for K-beauty sheet masks but much cheaper than products with comparable technology claims. A single Sculptra injection costs hundreds of dollars. Professional lifting facials run $100-300. This mask does not replicate those results, but it offers a consumer-accessible version of the same ingredient philosophy.
The reusable lifting band survives all four sessions easily, reducing per-use waste. Individual foil packets keep each mask fresh until use.
For consistent results, Numbuzin recommends using the mask 2-3 times per week alongside the No. 9 Lifting-sil Essence for daily use. At that frequency, one box lasts about two weeks, and the monthly cost is around $44 for the masks alone. This is an investment; whether the cumulative benefits justify it depends on how your skin responds to the peptide and NAD+ complex over time.
This mask works best as a weekly or twice-weekly intensive treatment in an anti-aging routine. It provides a visible immediate result that standard sheet masks cannot match. The technology behind the PLA threads and NAD+ capsules is genuine innovation in the category. It does not replace professional treatments, but it democratizes the ingredients.
Ingredient analysis.
Full INCI list
Water, Dipropylene Glycol, Cetyl Ethylhexanoate, Glycerin, Niacinamide, Polyglyceryl-10 Stearate, 1,2-Hexanediol, Hydrogenated Poly(C6-14 Olefin), Isopentyldiol, Glyceryl Stearate SE, Butylene Glycol, Neopentyl Glycol Diheptanoate, Carbomer, Arginine, Panthenol, Trehalose, Ethylhexylglycerin, Xanthan Gum, Adenosine, Sodium Polyacrylate, Disodium EDTA, Propanediol, Polylactic Acid, Polyglyceryl-10 Laurate, Saccharomyces/Silicon Ferment, Saccharomyces/Copper Ferment, Saccharomyces/Magnesium Ferment, Saccharomyces/Iron Ferment, Saccharomyces/Zinc Ferment, Polyglyceryl-6 Laurate, Caprylic/Capric Triglyceride, Hydrogenated Lecithin, Thioctic Acid, Hydrolyzed Collagen, Adenosine Triphosphate, Nicotinamide Adenine Dinucleotide, Resveratrol, Palmitoyl Tripeptide-5, Acetyl Hexapeptide-8, Copper Tripeptide-1, Palmitoyl Pentapeptide-4
Skin match.
The science.
The Science
Polylactic acid (PLA), the dissolvable thread material in the lower mask, has wide medical and aesthetic use. As an injectable (Sculptra), PLA microparticles stimulate neocollagenesis — new collagen production — over 2-4 months. Research in the Journal of Cosmetic and Laser Therapy (2004) shows significant collagen I and III synthesis after intradermal PLA injection. However, topical PLA from dissolving threads works at the surface; the collagen-stimulating signal stays in the epidermis rather than the deeper dermal layers reached by injections.
The extended mask contact time (30-40 minutes) improves active ingredient delivery. Research in Skin Pharmacology and Physiology shows sheet mask occlusion enhances transepidermal penetration of active ingredients more than non-occluded application. The hydrated, occluded environment created by the mask helps water-soluble actives like NAD+, peptides, and niacinamide penetrate more effectively than a quickly-absorbing serum.
Hydrolyzed collagen in this formula provides surface-level humectant and film-forming benefits. Topical collagen cannot reach the dermis to replace lost structural collagen, but a study in the Journal of Cosmetic Dermatology (2015) shows that topical hydrolyzed collagen peptides improve skin hydration and elasticity measurements, likely through moisture-binding and signaling effects on surface keratinocytes.
Mechanical compression from the lifting band may help temporary lymphatic drainage and reduce facial puffiness. No specific studies exist on this product's band, but research on facial compression garments in Aesthetic Surgery Journal shows external compression can reduce post-procedural edema and improve contour definition.
References
- Polylactic acid: a novel filler for facial lipoatrophy and collagen stimulation — Journal of Cosmetic and Laser Therapy (2004)
Dermatologist Perspective
Dermatologists use sheet masks as delivery vehicles rather than standalone treatments; this mask's extended contact time and occlusive application improve ingredient penetration over wash-off products. Board-certified dermatologists note topical PLA threads cannot replicate the dermal collagen stimulation of injectable PLA, but they acknowledge the ingredient's safety profile and surface-level benefits. The peptide and NAD+ complex earns cautious optimism — the individual ingredients are interesting but unproven at these concentrations. Dermatologists may recommend this mask as a supplementary treatment for patients interested in non-invasive lifting, though professional treatments remain more effective.
Where it fits in your routine.
Cleanse and tone skin. Apply the upper mask sheet first, aligning the eye and mouth openings. Apply the lower mask sheet, wrapping it around the jawline and chin. Secure the lifting band under the chin and over the head; adjust tension for comfortable compression. Wear for 30-40 minutes. Remove the mask pieces and lifting band. Pat the remaining essence into skin—do not rinse. Apply a light moisturizer if needed. Use 2-3 times per week.
At $22 for four masks ($5.50 per use), these K-beauty sheet masks are premium but affordable for their technology. Professional lifting treatments cost 20-50 times more per session. The ingredient complexity — NAD+, PLA threads, 50 peptides, mineral ferments — matches a $100 product. A 16-sheet bundle offers better per-unit value. The main cost concern is frequency: using them 2-3 times per week costs $44-66 monthly.
Use this intensive weekly anti-aging treatment for immediate results before special occasions or long-term improvement. It works for jawline definition and lower face sagging. It suits K-beauty enthusiasts who like technology-forward sheet mask innovations.
This won't work if sheet masks are impractical or you lack 40 minutes for the full treatment. Skip this if you expect permanent lifting; effects are temporary without consistent use. Budget-conscious users should note the recurring cost at recommended frequency.
Product details.
Two-piece sheet mask soaked in a thick, slightly viscous essence. The lower mask has dissolvable PLA threads that create a subtle textured feel. The lifting band is a stretchy fabric strap.
Unscented — no detectable fragrance.
Each foil packet contains two mask sheets (upper and lower face) and one reusable lifting band. The box includes 4 complete mask sets.
The two-piece design takes a moment to learn but adheres well once placed. The lifting band wraps around the jaw and head to create compression. During the 30-40 minute wear time, skin feels moist and held. After removal, skin looks immediately firmer, more defined at the jawline, and plumped.
4 sessions (one box, used 1-2 times per week = 2-4 weeks)
24 months
All Year
The backstory.
This mask was designed as the intensive treatment companion to the No. 9 NAD+ Lifting-sil Essence, translating the same peptide and NAD+ technology into a format that delivers extended skin contact and adds physical lifting mechanics. The PLA thread technology borrows from aesthetic medicine, where polylactic acid fillers are used for collagen stimulation — here, it's applied topically through dissolvable threads in the mask material.
About Numbuzin
Established Brand (5–20 years)Numbuzin launched in 2019 via Korea's Benow Inc. This mask accompanies the No. 9 NAD+ Lifting-sil Essence. It uses the same 50-peptide and NAD+ anti-aging technology in a two-piece sheet mask format with a physical lifting band to contour the jawline.
Common myths.
Sheet masks with lifting bands can permanently reshape your jawline.
Masks and bands provide temporary lifting through compression, hydration plumping, and elastic tension. They do not change facial contour structure permanently. Regular use improves skin quality, such as firmness and elasticity, but does not restructure bone or fat pads.
PLA threads in a sheet mask work like PLA filler injections.
Injectable PLA (like Sculptra) sits deep in the dermis to stimulate long-term collagen production. Topical PLA threads on the skin surface do not reach the same depth. The effect is more superficial; they provide a temporary firming film and a mild collagen-stimulating signal at the surface level.
FAQ.
How long should I wear this mask?
Apply both mask pieces and the lifting band for 30-40 minutes. The PLA threads in the lower sheet require time to dissolve, and the peptide-NAD+ complex works better with extended skin contact. Pat the remaining essence into your skin after removal instead of rinsing.
How often should I use this mask?
Use 2-3 times per week for best results. The box contains 4 mask sets, which last 1-2 weeks with regular use. The lifting band works for all four sessions.
Is the lifting effect permanent?
No — the immediate lifting and firming effect lasts only several hours to a day. Hydration plumping, the PLA thread film, and band compression cause this. Using it consistently for weeks may improve skin firmness and elasticity via the peptide and NAD+ complex.
Can I use this mask with the No. 9 Lifting-sil Essence?
Yes — they work together. Use the essence daily and the mask 2-3 times weekly for an anti-aging routine. On mask days, use the mask instead of the essence, not on top of it.
What are PLA threads and are they safe?
Polylactic acid (PLA) is a biodegradable polymer used for cosmetic fillers and medical sutures. This mask embeds PLA threads in the lower sheet; these dissolve during wear to deposit a thin film on the skin. Topical PLA is safe and non-irritating. It uses the same material as dissolvable medical stitches.
What the community says.
"Immediate visible lifting and firming effect on jawline"
"Two-piece design covers the entire face including chin and jawline"
"Lifting band provides satisfying physical compression"
"Skin looks plumped, hydrated, and glowy after removal"
"Mask material is soft, breathable, and doesn't slip"
"$5-6 per use adds up quickly for regular use"
"40-minute wear time is a significant commitment"
"Lifting effects are temporary without consistent use"
"Physical lifting band can feel tight or uncomfortable"
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