numbuzin No.5 Vitamin Boosting Essential Toner for sensitive skin
Niacinamide
Ascorbic Acid
Glutathione
Madecassoside
PanthenolHigh
- SuperiorNormal Skin Fit
- HighEffectiveness
- ExcellentSafety
A great choice for sensitive skin; a few toners fit it even better.
- American Journal of Clinical Dermatology, 2002
- Clinical, Cosmetic and Investigational Dermatology, 2017
This fit is calculated for the concerns frequently associated with sensitive skin: redness, stinging, and reactions to new products. 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
- This toner offers moderate benefits for your redness and irritation, as niacinamide and bisabolol work to soothe inflammation, while glycerin and panthenol provide excellent hydration for your normal skin. The 3-O-ethyl ascorbic acid also offers antioxidant activity, which is beneficial for overall skin health.
- The formulation is safe for your sensitive skin, containing soothing ingredients like bisabolol and panthenol and lacking harsh or prohibited substances.
- Overall, the product is safe and functional, providing good hydration and some relevant benefits for your skin concerns.
How to apply
- Use your hydrating toner in both your AM and PM routines. Start 3 times per week and move to daily use if your skin feels good.
- Apply your hydrating toner right after cleansing and before putting on your moisturizer or SPF.
- Gently press 2-3 drops of the hydrating toner into your skin and let it absorb for a minute before the next step.
- For sensitive skin, apply the hydrating toner on dry skin to keep it calm and comfortable.
- Always do a patch test before your first use and avoid the sensitive eye area.
People Say
★4.3Overall rating based on 1.5k+ reviewsBased on a very large amount of data, users frequently praise this toner for its essence-like, viscous texture that deeply hydrates and creates an immediate "glass skin" glow, making it ideal for dull or dehydrated skin. While many report a more radiant complexion over time, significant fading of hyperpigmentation and dark spots is often described as a slow process requiring consistent, long-term use.
Highlights
Deep hydration Mostly Mentioned
- “floods my complexion with hydration”
- “moisturizing but non-tacky”
- “leaves skin feeling refreshed and bouncy”
- “great for dehydrated skin.”
Essence-like texture Often Mentioned
- “luxurious viscous gel consistency”
- “absorbs really fast”
- “not watery, has substance”
- “glides on smoothly.”
Immediate glow Often Mentioned
- “gives a glowy complexion”
- “skin looks more radiant immediately”
- “immaculate glow”
- “revitalizes dull skin.”
Brightening ingredients Sometimes Noted
- “packed with niacinamide and vitamin C”
- “impressive ingredient list”
- “contains glutathione for brightening”
- “good for evening skin tone.”
Slow brightening results Sometimes Noted
- “haven't seen major improvement in 2 weeks”
- “requires patience to see results”
- “effects aren't that noticeable”
- “no dramatic difference in dark spots yet.”
Potential irritation Rarely Noted
- “gave me tingling sensation”
- “caused closed comedones (cc)”
- “irritated my sensitive skin”
- “broke me out.”
Sticky finish Rarely Noted
- “slightly sticky at first”
- “leaves a bit of a film”
- “tacky if layered too much”
- “feels heavy in humid weather.”
Sources: lovi.care, oliveyoung.com, yesstyle.com, iherb.com, reddit.com, skinsort.com, and more
Questions and answers
What makes Numbuzin No.5 Vitamin Boosting Essential Toner a great fit for sensitive skin?
This toner is a great fit because niacinamide and bisabolol help soothe redness and irritation, while glycerin and panthenol provide deep hydration. It also features a very safe formulation that is unlikely to trigger sensitive skin.
Which ingredients make this toner a good fit for sensitive skin?
Niacinamide, panthenol, bisabolol, and madecassoside make this toner a great fit by soothing redness and irritation while being gentle on sensitive skin. Glycerin also helps by keeping your skin well hydrated.
American Journal of Clinical Dermatology, 2002Journal of Cosmetic Dermatology, 2025
What does Niacinamide do for sensitive skin?
Niacinamide helps calm sensitive skin by strengthening the skin barrier and reducing redness and irritation. It is very well tolerated and may improve overall comfort and resilience with regular use.
What does Vitamin C do for sensitive skin?
Vitamin C helps brighten skin, smooth out fine lines, and fade dark spots. Clinical studies show it is generally safe and well-tolerated when improving overall skin quality.
Journal of Cosmetic Dermatology, 2020Journal of Cosmetic Dermatology, 2023
Where does this toner go in a skincare routine for sensitive skin?
This toner goes right after cleansing in both your morning and evening skincare routines to help calm redness and provide deep hydration. Its gentle formulation containing panthenol and bisabolol has a safe profile that is unlikely to irritate sensitive skin.
American Journal of Clinical Dermatology, 2002Clinical, Cosmetic and Investigational Dermatology, 2017
Can I use this toner with retinol, and in what order?
You can use this toner with retinol by applying the toner first to hydrate and soothe your skin, and then following with your retinol. This formulation is safe and well-tolerated, helping to keep sensitive skin calm while you use stronger treatments.
How often should I use this toner?
You can use this toner daily in both your morning and evening routines because its soothing ingredients like panthenol and bisabolol are gentle and safe for sensitive skin. Regular use helps calm redness and keeps your skin feeling soft and well-hydrated.
Can this toner clog pores, cause breakouts or purging for sensitive skin?
This toner is unlikely to clog pores or cause breakouts for your sensitive skin, as it has a safe formulation with a low risk of irritation and features soothing ingredients like panthenol. It does not contain active ingredients that speed up skin shedding, so it will not cause purging.
American Journal of Clinical Dermatology, 2002Journal of Cosmetic Dermatology, 2025
Is this toner fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying alcohol.
What the research says
Topical 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 single application of a moisturizing fluid containing hyaluronic acid 1%, glycerin 5%, and Centella asiatica stem cells extract significantly increased skin hydration by 29% and reduced transepidermal water loss at 24 hours compared to baseline and an untreated control site in twenty healthy women.
Clinical, Cosmetic and Investigational Dermatology, 2017A panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment.
Journal of Cosmetic Dermatology, 2025Cosmetic formulations containing 5% Centella asiatica extract showed the best efficacy in improving skin moisture and decreasing transepidermal water loss, while also exhibiting antiinflammatory properties in 25 volunteers compared to baseline measurements.
Indian Journal of Pharmaceutical Sciences, 2016Topical 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, 2005Topical 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, 2022Glutathione 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 0.05% w/w ECa 233 gel reduced erythema index by 0.03 U and improved early crusting and general wound appearance compared to placebo in thirty individuals undergoing facial laser resurfacing.
Journal of Alternative and Complementary Medicine, 2020Moisturizer 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 treatment with 5% vitamin C and 0.1% madecassoside significantly improved clinical scores for wrinkles, suppleness, firmness, roughness, and skin hydration, along with functional and structural remodeling of the elastic fiber network in 20 female volunteers with photoaged skin after 6 months compared to baseline.
Experimental Dermatology, 2008Topical 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, 2020A combination serum containing galactomyces ferment filtrate, dexpanthenol, and Centella asiatica effectively treated post-acne hyperpigmentation in subjects with colored skin by significantly increasing lightness scores in Fitzpatrick skin type V and reducing the melanin index in Fitzpatrick skin type IV compared to placebo.
Skinmed, 2021
Ingredients
Water, Dipropylene Glycol, Glycerin, Niacinamide, 1,2-Hexanediol, Butylene Glycol, Polyglycerin-3, Hippophae Rhamnoides Water, Acrylates C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Erythritol, Pentylene Glycol, 3-O-Ethyl Ascorbic Acid, Ethylhexylglycerin, Polyglyceryl-4 Caprate, Adenosine, Glutathione, Hydrogenated Lecithin, Disodium Edta, Madecassoside, Coptis Japonica Root Extract, Decyl Glucoside, Caprylyl Glycol, Ceramide Np, Ascorbic Acid, Bisabolol, Panthenol, Tocopherol, Arbutin, Acetyl Hexapeptide-8, Hexapeptide-9, Nonapeptide-1, Palmitoyl Pentapeptide-4, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7
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
Cosmetic chemist, SCS, IFSCC member
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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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