Isntree C-Niacin Toning Ampoule for combination skin

High
- SuperiorCombination Skin Fit
- HighEffectiveness
- HighSafety
One of the best serums for combination skin.
This fit is calculated for the concerns frequently associated with combination skin: an oily T-zone, enlarged pores, and dry cheeks. 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 superb suitability for your combination skin, as 3-O-Ethyl Ascorbic Acid and Niacinamide work effectively to control sebum and brighten your complexion.
- The formula also contains Aloe Barbadensis Leaf Extract and Panthenol, which provide soothing and hydrating benefits, complementing your skin's needs.
- The product is safe for your skin, with no risks of irritation due to the absence of harsh ingredients.
How to apply
- Use your serum as part of your PM routine. Start using it 3 times a week and move to daily use if your skin likes it.
- Apply the serum after cleansing and toner, and right before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and wait a minute ⏳for it to soak in.
- Apply the serum on clean and dry skin since your skin is not sensitive.
- Always do a patch test before using the serum for the first time, and avoid the eye area .
People Say
★4.2Overall rating based on 400+ reviewsThis ampoule is frequently praised for its lightweight, fast-absorbing texture and its ability to gently brighten the skin, providing a natural glow. It is well-tolerated by sensitive and acne-prone skin types. Some users report that results are subtle and require consistent long-term use, with a few experiencing minor breakouts or noting the watery consistency can be difficult to handle.
Highlights
Lightweight texture Mostly Mentioned
- “watery”
- “fast-absorbing”
- “non-greasy”
- “easy to layer”
Brightens and glows Often Mentioned
- “natural glow”
- “radiant complexion”
- “more even skin tone”
Gentle on sensitive skin Often Mentioned
- “non-irritating”
- “sting-free”
- “safe for acne-prone skin”
Hydrating Sometimes Noted
- “leaves skin soft”
- “plump-feeling”
- “hydrating without heaviness”
Slow or minimal results Sometimes Noted
- “saw no difference”
- “too weak”
- “takes months”
Minor breakouts Rarely Noted
- “small bumps”
- “whiteheads”
- “fungal acne”
Runny consistency Rarely Noted
- “very watery”
- “hard to apply”
- “messy”
Slight tackiness Rarely Noted
- “sticky film”
- “tacky finish”
Sources: lovi.care, iherb.com, yesstyle.com, stylevana.com, reddit.com, pickyskincare.com, and more
Questions and answers
What makes Isntree C-Niacin Toning Ampoule a great fit for combination skin?
This ampoule is a great fit for your combination skin because ingredients like niacinamide and 3-O-Ethyl Ascorbic Acid help control oil while brightening your complexion. It also includes panthenol and aloe leaf extract to keep skin calm and hydrated without causing irritation.
American Journal of Clinical Dermatology, 2002The Journal of Dermatological Treatment, 2017
Which ingredients make this ampoule a good fit for combination skin?
This ampoule is a great fit for combination skin because 3-O-Ethyl Ascorbic Acid and Niacinamide help control excess oil and brighten your complexion. Additionally, Aloe Barbadensis Leaf Extract and Panthenol provide soothing and hydrating benefits while keeping your skin calm.
American Journal of Clinical Dermatology, 2002The Journal of Dermatological Treatment, 2017
What does Niacinamide do for combination skin?
Niacinamide helps balance oily areas by reducing excess shine and pore size while keeping dry patches hydrated and smooth. It also works to calm redness and even out skin tone, making it very suitable for combination skin.
What does 3-O-Ethyl Ascorbic Acid do for combination skin?
3-O-Ethyl Ascorbic Acid helps brighten combination skin and reduce aging signs by promoting an even tone and better skin health. Topical formulas containing vitamin C derivatives are generally well tolerated and may improve skin look without disrupting moisture balance.
Where does this ampoule go in a skincare routine for combination skin?
This ampoule goes in the evening routine after cleansing and before moisturizing, as treatments are placed in the PM for simplicity and safety around sun exposure.
Can I use this ampoule with retinol, and in what order?
You can use this ampoule with retinol by applying the ampoule first to slightly damp skin and following with your retinol once it absorbs. This formula is unlikely to cause irritation and helps calm the skin while you use active treatments.
American Journal of Clinical Dermatology, 2002The Journal of Dermatological Treatment, 2017
How often should I use this ampoule?
This treatment is a great fit for your combination skin and is used in the evening routine. It helps control oil and brighten your complexion while keeping your skin calm and hydrated.
American Journal of Clinical Dermatology, 2002The Journal of Dermatological Treatment, 2017
Can this ampoule clog pores, cause breakouts or purging for combination skin?
This ampoule is unlikely to cause breakouts or clog pores on combination skin, as it has a very low risk of these issues and contains gentle ingredients. Its formula avoids harsh components, helping keep your skin calm and clear while delivering balanced hydration.
Is this ampoule fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying 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, 2002A multi-component dissolving microneedle patch loaded with glabridin, 3-O-ethyl-L-ascorbic acid, and tranexamic acid effectively reduced chloasma and age spots while demonstrating safety in clinical evaluation, alongside significant antioxidant, anti-tyrosinase, and melanin-reduction effects in vitro and in vivo.
Polymers, 2023Topical 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, 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, 2025Topical 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, 2022Topical application of a sea buckthorn fruit extract formulation significantly reduced skin sebum secretion in 10 healthy human volunteers compared to the control base over an 8-week period.
Journal of Pharmacy & Bioallied Sciences, 2010Topical emulsions containing Hippophae rhamnoides and Cassia fistula plant extracts significantly reduced skin sebum contents compared to placebo in patients with grade I and grade II acne vulgaris.
Postepy Dermatologii I Alergologii, 2014Topical application of a 5% Hippophae rhamnoides oil-in-water emulsion significantly improved skin hydration (p=0.0003) and transepidermal water loss (p=0.0087) compared to a placebo base formulation in 13 healthy male subjects over 84 days.
Pakistan Journal of Pharmaceutical Sciences, 2014Topical 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, 2019A cream combining propolis, tea tree oil, and Aloe vera reduced erythema scars, acne severity index, and total lesion count better than erythromycin cream in sixty patients with mild to moderate acne vulgaris compared to placebo.
Clinical Pharmacology, 2018Topical aloe vera gel significantly accelerated split-thickness skin graft donor-site healing compared to placebo in 12 patients, but showed no significant difference in pain relief.
Plastic and Reconstructive Surgery, 2018Topical application of Aloe vera cream reduced postoperative pain at rest and during defecation, accelerated wound healing at two weeks, and decreased analgesic requirements in patients after open hemorrhoidectomy compared to placebo.
Journal of Alternative and Complementary Medicine, 2010
Ingredients
Hippophae Rhamnoides Fruit Extract, Butylene Glycol, Pentylene Glycol, Glycerin, Betaine, Water, Niacinamide, Propanediol, Aloe Barbadensis Leaf Extract, Melia Azadirachta Flower Extract, Melia Azadirachta Leaf Extract, Pumpkin Fruit Extract, Physalis Alkekengi Fruit Extract, Sodium Hyaluronate, Dipotassium Glycyrrhizate, Ocimum Sanctum Leaf Extract, Beta-Glucan, Curcuma Longa Root Extract, Corallina Officinalis Extract, Brassica Oleracea Italica Extract, Coccinia Indica Fruit Extract, Moringa Oleifera Seed Oil, Boswellia Serrata Extract Resin, Bioflavonoids, Panthenol, Allantoin, Sodium Polyacrylate, Tocopherol, Polysorbate 80, 1,2-Hexanediol, Ethyl Hexanediol, Ammonium Acryloyldimethyltaurate Vp Copolymer, 3-O-Ethyl Ascorbic Acid, Zanthoxylum Piperitum Fruit Extract, Pulsatilla Koreana Extract, Usnea Barbata Extract
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
-

Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
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