numbuzin Vitamin-Niacinamide Concentrated Pad for skin with dark spots
Niacinamide
Glutathione
Ascorbic Acid
Sodium Hyaluronate
PanthenolAverage
- AverageNormal Skin Fit
- AverageEffectiveness
- Low RiskSafety
Works for skin with dark spots; other serums fit it better.
This fit is calculated for the concerns frequently associated with dark spots: hyperpigmentation, sun spots, and uneven skin tone. For scores and recommendations based on your full skin profile, including your 12D face scan results and any goals or preferences you have, please use the Lovi app.
Page built Nov 8, 2026How the Fit score works
Lovi Assistant explains
- Offers moderate suitability for your normal skin as niacinamide and vitamin C provide antioxidant activity and melanogenesis regulation, though it lacks sufficient emollient ingredients for optimal results.
- The formula provides general skincare benefits like hydration and soothing through ingredients such as Panthenol and Glycerin, but these are not specialized for your main goal of pigmentation.
- The product is generally safe for your normal skin, with some risks of irritation due to the presence of alcohol and ascorbic acid.
How to apply
- Apply this serum as part of your PM routine starting 3x/week and build up to daily use if your skin likes it.
- Place the serum after cleansing and toning, but before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and wait a minute for it to absorb.
- Apply the serum on dry skin to help fade pigmentation effectively.
- Avoid the eye area and always use SPF 30+ during the day.
People Say
★4.7Overall rating based on 6.7k+ reviewsBased on a very large amount of data, users primarily utilize these pads to target hyperpigmentation, acne scars, and dullness, with many reporting a noticeable "glass skin" glow and smoother texture after consistent use. While effective for brightening, reactions are mixed regarding hydration; oily and combination skin types often find them refreshing, whereas those with dry or highly sensitive skin occasionally report dryness, tingling, or breakouts.
Highlights
Effective brightening Often Mentioned
- “skin looks noticeably brighter”
- “gave me a glass skin glow”
- “faded my dark spots”
- “helped with post-acne marks”
- “complexion looks more even”
Smoother skin texture Often Mentioned
- “skin feels so soft”
- “reduced roughness”
- “gentle exfoliation”
- “makeup applies better”
- “texture is much smoother”
Refreshing and lightweight Sometimes Noted
- “absorbs quickly”
- “non-sticky finish”
- “refreshing in the morning”
- “cooling effect”
- “great for oily skin”
Unique dual-sided pad Sometimes Noted
- “jelly side is super soft”
- “gauze side exfoliates well”
- “square shape fits cheeks”
- “holds a lot of essence”
- “perfect for toner masking”
Packaging leaks Sometimes Noted
- “leaks if tilted”
- “essence spilled in transit”
- “lid doesn't seal tightly”
- “messy packaging”
- “bulky container”
Drying for some Rarely Noted
- “not hydrating enough”
- “dried out my skin”
- “need moisturizer immediately”
- “pads dry out in jar”
- “left face feeling tight”
Irritation and breakouts Rarely Noted
- “caused tiny bumps”
- “tingling sensation”
- “broke me out”
- “redness after use”
- “too harsh for sensitive skin”
Texture dislike Rarely Noted
- “jelly side feels slimy”
- “weird texture”
- “slippery on face”
- “gauze side too scratchy”
Sources: lovi.care, oliveyoung.com, iherb.com, skinsort.com, yesstyle.com, reddit.com, and more
Questions and answers
How well does the Numbuzin Vitamin-Niacinamide Concentrated Pad work for skin with dark spots?
This product works for skin with dark spots, though other products fit it better because it lacks enough softening ingredients for best results. Treatment for this skin needs a blend of effective antioxidants and soothing ingredients that fade dark spots without irritation.
Which ingredients make this treatment a good fit for skin with dark spots?
Niacinamide and Ascorbic Acid make this treatment a good fit for dark spots by helping fade discoloration and brighten your skin tone. To work best for this skin, a treatment of this type needs powerful antioxidants and soothing ingredients that target pigmentation without causing irritation.
What does Niacinamide do for skin with dark spots?
Niacinamide helps fade dark spots and uneven pigmentation by slowing down the transfer of pigment in the skin. It is generally well tolerated and may improve overall skin brightness with consistent use.
What does Glutathione do for skin with dark spots?
Glutathione helps brighten skin with dark spots and evens out skin color. Topical and oral use may reduce dark patches and protect against environmental stress with a good safety profile.
Journal of Cosmetic Dermatology, 2019International Journal of Dermatology, 2025
Where does this treatment go in a skincare routine for skin with dark spots?
This treatment goes in your evening routine, starting at once a week before slowly increasing frequency if your skin tolerates it well. To work best on dark spots, this type of skin needs targeted brightening ingredients and rich softening ingredients to lock in moisture.
Can I use this treatment with retinol, and in what order?
You can use this treatment with retinol, but apply them on alternating nights or space them out to keep your skin calm and avoid irritation from combining active ingredients.
How often should I use this treatment?
Use this treatment once a week in the evening, and if your skin feels comfortable and you see good results, you can carefully use it more often. This product of this type needs richer softening ingredients to keep skin soft and smooth, along with targeted brighteners to fade dark spots.
The British Journal of Dermatology, 2002American Journal of Clinical Dermatology, 2002
Can this treatment clog pores, cause breakouts or purging for skin with dark spots?
This treatment is unlikely to clog pores or cause breakouts, as only a small number of reviewers mention breakouts. To work well on skin with dark spots, this type of product needs more specialized brightening ingredients and rich softening ingredients.
Is this treatment fragrance-free and alcohol-free?
It has no fragrance and contains drying alcohol (alcohol).
What the research says
Niacinamide significantly decreased hyperpigmentation and increased skin lightness compared with vehicle alone after 4 weeks of use in women by inhibiting melanosome transfer.
The British Journal of Dermatology, 2002Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment.
American Journal of Clinical Dermatology, 2002A new topical panthenol-containing emollient significantly improved transepidermal water loss reduction, stratum corneum hydration, and intercellular lipid lamellae length compared with control in healthy subjects without negatively impacting bacterial viability.
The Journal of Dermatological Treatment, 2017Topical post-laser application of human adipocyte-derived mesenchymal stem cell media combined with niacinamide significantly improved wrinkle index, melanin index, patient satisfaction, and investigator esthetic improvement scores compared to vehicle cream in patients with aging skin.
Journal of Cosmetic Dermatology, 2021Topical nicotinamide prevented solar-simulated UV-induced immunosuppression in healthy volunteers, and men experienced immunosuppression at solar-simulated UV doses three times lower than those required for women.
The Journal of Investigative Dermatology, 2008Topical 5% niacinamide applied twice daily for 12 weeks reduced fine lines and wrinkles, hyperpigmented spots, red blotchiness, and skin sallowness, and improved skin elasticity compared to vehicle control in 50 female white subjects with facial photoaging.
Dermatologic Surgery, 2005Glutathione amino acid precursors effectively increase cellular glutathione levels, reducing oxidative stress, ATP depletion, and DNA damage in human keratinocytes, clinical subjects, and ex vivo skin compared to controls.
Journal of the European Academy of Dermatology and Venereology, 2024Topical oxidized glutathione significantly decreases the skin melanin index and improves moisture content, smoothness, wrinkle formation, and elasticity compared to placebo in healthy women.
Clinical, Cosmetic and Investigational Dermatology, 2014Topical glutathione improves hyperpigmentation, reduces ultraviolet-induced erythema and wrinkles, decreases transepidermal water loss, and enhances antioxidant capacity.
The Journal of Clinical and Aesthetic Dermatology, 2025Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers.
Experimental Dermatology, 2003Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation.
Journal of Periodontology, 2009Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream.
Journal of Cosmetic Dermatology, 2022Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.
Journal of Drugs in Dermatology, 2011Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.
Clinical Oral Investigations, 2022Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.
BMC Oral Health, 2019Moisturizer containing 5% panthenol, madecassoside, and copper-zinc-manganese decreased adverse reactions and downtime after ablative fractional carbon dioxide laser resurfacing with comparable efficacy to 0.02% triamcinolone acetonide cream in 20 subjects.
Journal of Cosmetic Dermatology, 2019Topical dexpanthenol formulated in lipophilic vehicles improved stratum corneum hydration and reduced transepidermal water loss compared to vehicle control in humans.
Arzneimittel-Forschung, 2000Hyaluronic acid, hyaluronic acid plus dexpanthenol, and isotonic saline nasal sprays all significantly improved dry nose symptoms over four weeks in 240 patients, with hyaluronic acid plus dexpanthenol providing superior nasal moisturisation compared to the other two.
Auris, Nasus, Larynx, 2020
Why other serums fit skin with dark spots better
Daily application of a serum containing tetrahexyldecyl ascorbate and acetyl zingerone significantly decreased skin pigmentation, fine lines, wrinkles, and transepidermal water loss while increasing smoothness, firmness, and elasticity in 35 healthy individuals compared to baseline over 12 weeks.
Journal of Cosmetic Dermatology, 2024
Ingredients
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 Extract 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
Behind this fit score
Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.
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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
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Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
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