Stacks five distinct brightening mechanisms — niacinamide, glutathione, tranexamic acid, dual vitamin C forms, and LHA exfoliation — into a single convenient pad format. Most brightening toner pads rely on one or two actives; this formula addresses melanin production from multiple cellular pathways simultaneously, creating a comprehensive approach to hyperpigmentation in a 30-second daily step.
An unusually comprehensive brightening pad that stacks five distinct anti-hyperpigmentation mechanisms into a single convenient step. The 5% niacinamide anchors a formula that also includes glutathione, tranexamic acid, dual vitamin C forms, and gentle LHA exfoliation — all delivered on generously saturated dual-sided pads. A 2022 Olive Young Award winner that genuinely earns its K-beauty cult status.
The case for it
Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R5 decided 9,072 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
What would change this: Guideline or regulatory standing for the active on this concern would move this from a promising bet to a recommendation.
Same rule for everyone. “Promising” is the verdict on 7,858 of 45,024 concern verdicts across the catalog; rule R9p decided 7,858 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
What would change this: A declared concentration would move this to a firmer reading of the dose.
Same rule for everyone. “Good choice” is the verdict on 9,564 of 45,024 concern verdicts across the catalog; rule R5 decided 9,072 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
The case for it
Cautions: fungal-acne triggers.
What would change this: A declared concentration would move this to a firmer reading of the dose.
Same rule for everyone. “Strong choice” is the verdict on 1,459 of 45,024 concern verdicts across the catalog; rule R3 decided 567 of them. Unchanged since September 5, 2026, engine 5.1.1.
Brand or formulator? Disclose a concentration or correct a fact →
The studies behind the evidence row
Also listed for Dullness — the actives here (Niacinamide, Salicylic Acid, Tranexamic Acid, Glutathione) are in our research queue for that concern; there is no verdict until their evidence rows are written. That is a gap in our table, not a mark against the product.
Does the jobDoes what a toner is for: not alcohol-driven, adds something real. Not measured from the label: restores skin pH, plays well with what follows.
A verdict is DermApproved’s assessment of how well a product’s ingredients fit a concern — never a claim about what the product treats. Evidence dots and collected reviews sit beside it and are never blended in. Rules 0.5.1 · evidence table ev-2026.09-r228 · how we decide
Most brightening toner pads pick one active ingredient, put it on a cotton round, and call it innovation. Niacinamide pads. Vitamin C pads. Occasionally, an ambitious formula will combine two brightening agents and position itself as advanced. The Numbuzin No. 5 Vitamin-Niacinamide Concentrated Pad looked at that landscape and decided to throw the entire brightening pharmacopoeia at the problem.
Five distinct mechanisms of action against hyperpigmentation, all in a single pad. That's not ingredient stacking for the sake of a longer INCI list — each active targets melanin production at a different point in the cellular pathway. Niacinamide at 5% inhibits melanosome transfer from melanocytes to keratinocytes, essentially blocking the final delivery step. Glutathione works upstream, reducing melanin synthesis through its antioxidant action and tyrosinase inhibition. Tranexamic acid interrupts the plasminogen pathway that triggers melanocyte activity in response to UV exposure and inflammation. Vitamin C — present in both pure ascorbic acid and the more stable ascorbyl glucoside form — directly inhibits tyrosinase, the enzyme that catalyzes melanin production. And capryloyl salicylic acid provides gentle LHA exfoliation that both clears the surface layer of hyperpigmented cells and enhances penetration of everything else.
The strategy is elegant in its redundancy. If any single pathway proves resistant or any single ingredient is present at too low a concentration to be independently effective, the other four are still working. It's the formulation equivalent of attacking from every direction — and for stubborn post-inflammatory hyperpigmentation, that comprehensive approach can be more effective than a single active at a higher concentration.
The pad itself is a thoughtful execution of the concept. Each one is thick, sturdy, and saturated to the point of excess — you can comfortably cover your face, neck, and upper chest with a single pad and still squeeze out residual essence. The dual-sided design provides a textured gauze surface for gentle physical exfoliation on one side and a smooth, cushion-like surface on the other for pressing the essence into skin. The textured side creates just enough friction to buff away surface dead cells without the micro-tear concerns of harsher physical exfoliants, while the smooth side delivers a satisfying burst of hydration that belies the lightweight, watery formula.
In daily use, the pads deliver an experience that's refreshingly uncomplicated for a product with such a complex ingredient list. They feel cool and light on application, with no stinging, burning, or irritation — a testament to the gentle concentrations of each active. The essence absorbs within seconds, leaving no sticky or tacky residue. Subsequent products — serums, moisturizers, sunscreen — layer over it without any pilling or interference. It slots into both morning and evening routines with zero friction, which matters enormously for a product that requires daily consistency to deliver results.
And daily consistency is where this product earns its reputation. The brightening effects are not instant — this is a marathon, not a sprint. During the first week, you'll notice smoother skin texture and a subtle glow, likely attributable to the LHA exfoliation and the hydrating base ingredients. The meaningful dark spot fading begins appearing around weeks three to four, with users consistently reporting visible improvement in post-acne marks, sun spots, and general unevenness. By weeks six to eight of daily use, the cumulative effect becomes genuinely impressive.
The packaging departs from the typical round toner pad jar with a distinctive square design that's both aesthetically pleasing and practically functional. An attached tweezer in the lid allows hygienic pad removal without fishing around in essence-soaked pads with your fingers. It's a small detail, but one that signals a brand thinking about the actual usage experience.
The alcohol listed near the end of the ingredient list has raised questions, but its position suggests a trace concentration — likely used as a solvent for one of the botanical extracts rather than a functional ingredient. At this level, it poses no meaningful irritation or drying risk for the vast majority of skin types.
Honest limitations: this is not a spot treatment. If you have a few dark marks and want targeted correction, a concentrated spot serum may deliver faster results on those specific areas. The Numbuzin pad excels at overall tone evening and gradual brightening across the entire face — it's playing the long game across a broad surface area rather than the short game on individual spots. Additionally, while the formula is gentle enough for most sensitive skin, the combination of multiple actives (even at gentle concentrations) means that very reactive skin types should introduce slowly.
The value proposition is genuinely strong. At $21.50 for 70 pads — roughly $0.31 per pad — you're getting five brightening actives, gentle exfoliation, and hyaluronic acid hydration in each use. The 140-pad refill option drops the per-pad cost further for committed daily users. When you consider that separate niacinamide toner, vitamin C serum, and tranexamic acid treatment would cost considerably more than $21.50 combined, the efficiency of this all-in-one format becomes clear.
The product's 2022 Olive Young Award win validates what daily users already know: this isn't just a well-marketed pad with a long ingredient list. The formulation demonstrates genuine understanding of hyperpigmentation biochemistry, and the practical execution — generous saturation, dual-sided design, hygienic packaging — makes compliance easy. In a category full of one-note brightening pads, Numbuzin built a full orchestra.
The hero actives that drive this product's performance.
| Ingredient | Function | Evidence |
|---|---|---|
| Niacinamide (5%) | Listed second at a potent 5% concentration — the sweet spot backed by clinical research for brightening, melanin transfer inhibition, and barrier strengthening. In this pad format, the niacinamide delivers directly to skin during the wiping motion, ensuring even distribution. Works synergistically with the tranexamic acid and vitamin C derivatives to address hyperpigmentation from multiple pathways simultaneously. | Emerging for Hyperpigmentation |
| Glutathione | A master antioxidant and tyrosinase inhibitor that interrupts melanin production at the cellular level. In this formula, glutathione complements the niacinamide's melanin-transfer inhibition with upstream melanin-synthesis reduction, creating a two-pronged approach to brightening. Numbuzin emphasizes 99%-pure glutathione, though the concentration is undisclosed. | Not yet assessed |
| Tranexamic Acid | Originally developed for treating melasma, tranexamic acid inhibits plasminogen activation that triggers melanocyte activity. In this pad formula, it adds a third brightening mechanism distinct from both niacinamide and glutathione, addressing stubborn post-inflammatory hyperpigmentation and sun-induced dark spots through a different cellular pathway. | Limited for Hyperpigmentation |
| Vitamin C Complex (Ascorbic Acid + Ascorbyl Glucoside) | A dual-form vitamin C approach — pure ascorbic acid for immediate antioxidant activity and ascorbyl glucoside for sustained, gradual release. The combination provides both rapid free-radical neutralization and longer-term brightening support, while the ascorbyl glucoside's superior stability compensates for ascorbic acid's tendency to oxidize in water-based formulas. | Limited for Hyperpigmentation |
| Capryloyl Salicylic Acid (LHA) | A lipophilic hydroxy acid (LHA) that exfoliates more gently and gradually than standard salicylic acid. In this pad, it provides mild pore-clearing exfoliation that enhances the penetration of the brightening actives while keeping the formula gentle enough for daily use. The textured side of the pad amplifies this gentle exfoliation mechanically. | Established mechanism for Rough Texture · established mechanism |
Ingredient standings describe the active at treatment-level doses and vehicles; this product's own condition grades weigh its actual formula.
Water, Niacinamide, Dipropylene Glycol, Glycerin, Propanediol, Butylene Glycol, Hydroxyethyl Urea, Diethoxyethyl Succinate, Hydroxyacetophenone, Caprylyl Glycol, Polyglyceryl-10 Laurate, Betaine, Panthenol, Ethylhexylglycerin, Gluconolactone, Sodium Polyacrylate, Ammonium Acryloyldimethyltaurate/VP Copolymer, Sodium Citrate, Citric Acid, Maltodextrin, 1,2-Hexanediol, Gardenia Florida Fruit Extract, Dipotassium Glycyrrhizate, Sodium Hyaluronate, Ascorbic Acid, Pantolactone, Tocopherol, Capryloyl Salicylic Acid, Tranexamic Acid, Tremella Fuciformis (Mushroom) Extract, Caprylic/Capric Triglyceride, Ascorbyl Glucoside, Ubiquinone, Hydrogenated Lecithin, Magnesium Chloride, Alcohol, Glutathione, Polysorbate 80, Calcium Gluconate, Pyridoxine HCL, BHT, Yeast Extract, Cyanocobalamin, Disodium EDTA
toner
AM & PM
Use after cleansing as the toner step. Swipe the textured side across face first for gentle exfoliation, then flip to the smooth side to press remaining essence into skin. Pat in any excess. Follow with serums and moisturizer. Can be used on neck and chest for body brightening.
Immediate: skin feels refreshed and lightly exfoliated with a subtle glow. Short-term (1-2 weeks): skin tone appears more even, surface texture feels smoother. Long-term (4-8 weeks): visible fading of dark spots and post-inflammatory hyperpigmentation with daily consistent use.
This pad's brightening strategy employs five active ingredients targeting different points in the melanogenesis pathway, creating a multi-mechanism approach that reflects current dermatological thinking on hyperpigmentation treatment.
Niacinamide at 5% is the backbone of the formula. A landmark 2002 study in the British Journal of Dermatology demonstrated that topical niacinamide significantly reduces hyperpigmentation by inhibiting melanosome transfer — the final step where melanin-containing packages move from melanocytes to surrounding keratinocytes. Importantly, niacinamide doesn't inhibit melanin production itself, making it complementary to ingredients that do.
Glutathione works upstream of niacinamide through two mechanisms: it directly inhibits tyrosinase (the rate-limiting enzyme in melanin synthesis) and shifts melanin production from darker eumelanin toward lighter pheomelanin. A 2017 randomized controlled trial published in Clinical, Cosmetic and Investigational Dermatology found that topical glutathione improved melanin indices after 10 weeks of use, though optimal concentrations and delivery methods remain subjects of ongoing research.
Tranexamic acid addresses melanogenesis through an entirely different pathway — it inhibits plasminogen activation in the keratinocyte-melanocyte interaction. UV exposure triggers keratinocytes to release plasminogen activator, which stimulates melanocyte activity. By blocking this pathway, tranexamic acid reduces UV-triggered melanin overproduction. Multiple studies, including a 2012 trial in the Journal of the American Academy of Dermatology, have demonstrated tranexamic acid's efficacy for melasma and post-inflammatory hyperpigmentation.
The dual vitamin C forms — ascorbic acid and ascorbyl glucoside — provide both immediate and sustained antioxidant activity while directly inhibiting tyrosinase through copper chelation at the enzyme's active site. Ascorbyl glucoside is enzymatically converted to ascorbic acid by glucosidases in the skin, providing a time-release effect. A 2013 study in the Journal of Cosmetic Dermatology confirmed ascorbyl glucoside's melanin-inhibiting efficacy comparable to hydroquinone at similar concentrations.
Capryloyl salicylic acid (LHA) is a lipophilic derivative of salicylic acid with enhanced skin penetration and reduced irritation potential. It accelerates desquamation — the shedding of surface skin cells — which both removes hyperpigmented cells and thins the stratum corneum to improve penetration of the other actives. Research published by L'Oreal's research division (which developed LHA) demonstrated its superior tolerability compared to standard salicylic acid.
Practitioners would recognize the multi-mechanism brightening approach in this formula as sound pharmacological strategy. Dermatologists routinely recommend combining brightening agents that target different steps in the melanogenesis pathway, and this pad delivers that concept in an accessible, compliance-friendly format. The 5% niacinamide concentration falls within the well-studied efficacy range that dermatologists commonly recommend, and the inclusion of tranexamic acid reflects ingredients increasingly used in clinical practice for melasma and post-inflammatory hyperpigmentation. Dermatologists would note that while this pad provides excellent maintenance and prevention, severe or deep hyperpigmentation may require prescription-strength treatments. The gentle acid exfoliation from LHA would be seen as a smart addition that enhances active penetration without the irritation risk of stronger chemical exfoliants.
After cleansing, pull one pad from the jar using the attached tweezer. Start with the textured/embossed side and gently swipe across the entire face using upward and outward motions, focusing on areas of hyperpigmentation or dullness. Flip to the smooth cushion side and press the remaining essence into skin, patting gently until absorbed. Extend to neck and chest if desired — the pad holds enough essence for all three areas. Follow with serum, moisturizer, and sunscreen (AM). Use once or twice daily for best results.
At $21.50 for 70 pads, the per-pad cost of approximately $0.31 represents excellent value for a formula containing five distinct brightening actives, gentle exfoliation, and hydrating ingredients. The 140-pad refill set improves the economics further for daily users. To replicate this formula's active ingredient profile with separate products — a niacinamide toner, vitamin C serum, tranexamic acid treatment, and exfoliating pad — would cost substantially more. The convenience factor of delivering all these actives in a single 30-second step adds practical value beyond the raw ingredient cost. For an award-winning K-beauty product, the pricing is appropriately modest.
Anyone dealing with post-inflammatory hyperpigmentation, dark spots, sun damage, or general skin dullness who wants a comprehensive brightening treatment in a convenient daily format. Especially well-suited for those who prefer streamlined routines, as this pad consolidates multiple brightening steps into one.
Those seeking immediate, dramatic results on individual dark spots should pair this with a concentrated spot treatment rather than relying on it alone. Very dry skin types may need additional hydration beyond what this pad provides. If you're already using multiple strong actives (high-dose retinol, prescription treatments), adding five more actives may overcomplicate your routine.
Ready to try Numbuzin No. 5 Vitamin-Niacinamide Concentrated Pad?
Buy at Amazon ♥Thick, sturdy pure cotton pads absolutely saturated with a lightweight, watery essence. One side is textured with an embossed gauze pattern for gentle physical exfoliation; the other is smooth with a cushiony jelly-like film for pressing essence into skin.
Fragrance-free with only a very faint neutral scent from the active ingredients. No noticeable fragrance during or after use.
Square jar (distinctive from typical round toner pad containers) with an attached tweezer integrated into the lid for hygienic pad removal. Clean, minimalist Numbuzin numbered design. The jar format keeps pads saturated and allows easy access.
On first use, you'll notice how generously saturated the pads are — a single pad holds enough essence for face, neck, and decolletage with product to spare. The textured side provides a satisfying gentle exfoliation, and flipping to the smooth side delivers a brightening essence that absorbs within seconds. No stinging, no irritation, just a refreshing clean feeling. Expect visible brightening results after 2-4 weeks of daily use.
5-10 weeks with once-daily use (70 pads), or 2.5-5 weeks applied morning and night
All Year
Numbuzin's No. 5 line is dedicated to brightening and dark spot correction. This pad won a 2022 Olive Young Award — a significant validation in Korea's competitive beauty market — and quickly became one of the brand's flagship products. Its success helped establish Numbuzin as more than just a pore-care brand and drove the company's international expansion. A 140-pad refill set was later introduced in response to demand from daily users.
Numbuzin launched in 2019 as a K-beauty brand under parent company Benow, gaining rapid popularity through Olive Young and social media. The No. 5 pad won a 2022 Olive Young Award, establishing the brand's brightening line as a consumer favorite in Korea before expanding internationally.
Toner pads don't work as well as liquid toners because the pad absorbs the product.
These pads are intentionally over-saturated — a single pad holds far more essence than needed for one face application. The pad format actually improves ingredient delivery by providing even distribution across the skin surface with consistent pressure, plus the textured side adds gentle exfoliation that enhances absorption of the brightening actives.
Niacinamide causes purging when you first start using it.
Niacinamide does not cause purging — only ingredients that increase cell turnover (like retinoids and AHAs) can trigger a true purge. If you experience breakouts after starting niacinamide, it's more likely a reaction to another ingredient in the product or coincidental timing. The gentle LHA in this formula may cause very mild purging in some users, but it's uncommon at the low concentrations used.
These pads are gentle enough for daily use, both morning and evening. For best brightening results, use consistently once or twice daily after cleansing. If you have sensitive skin, start with once daily and monitor for any irritation before increasing to twice daily. Each jar contains 70 pads, lasting 5-10 weeks depending on usage frequency.
The formula combines five evidence-based brightening ingredients — niacinamide at 5%, glutathione, tranexamic acid, vitamin C, and LHA — each targeting melanin production through a different cellular pathway. Clinical research supports the efficacy of these ingredients individually, and the combined approach addresses hyperpigmentation more comprehensively. Most users report visible improvement in dark spots within 4-8 weeks of consistent daily use.
Start with the textured/embossed side — this provides gentle physical exfoliation that removes surface dead skin cells and enhances absorption of the brightening actives. Then flip to the smooth cushion side to press the remaining essence into your skin. The dual-sided design lets you exfoliate and deliver treatment in a single step.
Yes, these pads pair well with most other actives. The LHA concentration is low enough that it won't cause issues with retinol, though you may want to apply retinol after the pad has fully absorbed. Avoid using these pads on the same day as strong AHA or BHA exfoliants (like a 30% AHA peel) to prevent over-exfoliation. Vitamin C serums, ceramide moisturizers, and peptide products all layer well with these pads.
The formula is fragrance-free, paraben-free, and uses gentle concentrations of its active ingredients. The LHA exfoliant is milder than standard salicylic acid, and the 5% niacinamide is within the well-tolerated range for most skin types. Sensitive skin users generally report good tolerance, though those with very reactive skin should start with every-other-day use. The alcohol listed is at trace concentration near the end of the ingredient list.
Yes, Numbuzin offers a 140-pad refill set, which provides better per-pad value for daily users who have confirmed the product works for their skin. The refill was introduced in response to demand from users who found the standard 70-pad jar didn't last long enough with twice-daily use.
Recurring themes our editors read across retailer reviews of this product — summaries in our words, not quotations, and not a substitute for your own patch test.
Visible reduction in dark spots and hyperpigmentation within one month
Pads are generously saturated with enough essence for face, neck, and chest
Gentle enough for daily use without irritation or dryness
Non-sticky, refreshing feel that works well under subsequent products
Dual-sided pad design allows exfoliation and essence delivery in one step
Results require consistent daily use over weeks rather than instant effects
May not provide enough hydration for very dry skin as a standalone toner step
Alcohol listed in ingredients (though at trace concentration)
Individual pad results less dramatic than dedicated spot treatments
Verified answers from our questions library — the nuance a product page cannot carry.
