La Roche-Posay Mela B3 Serum for oily skin
Niacinamide
La Roche-Posay Thermal Spring Water
Melasyl
Cystoseira Tamariscifolia Extract
Sodium Hyaluronate
Average
- HighOily Skin Fit
- AverageEffectiveness
- HighSafety
Works for oily skin; other serums fit it better.
This fit is calculated for the concerns frequently associated with oily skin: shine, enlarged pores, blackheads, and blemishes. 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 exfoliation and brightening for your oily skin, as capryloyl salicylic acid and niacinamide work to refine texture and improve radiance. Glycerin and dipotassium glycyrrhizate provide supportive hydration and soothing benefits, addressing general concerns of oily shine.
- The formulation is highly suitable for oily skin due to the seboregulating and keratolytic actions of niacinamide and capryloyl salicylic acid.
- The safety profile is excellent, with no risks of irritation for your oily skin due to the absence of harsh ingredients and the presence of soothing components.
How to apply
- Use this serum in your PM routine. Start by applying it 3 times a week and build up to daily use if your skin tolerates it well.
- Apply the serum after cleansing and toning, but right before your moisturizer for the best results.
- Gently press 2-3 drops of the serum into your skin. Let it absorb ⏱ for a minute before applying the next product.
- Apply the serum on clean and dry skin since your skin is not sensitive and you want to target oily shine. This helps control excess oil throughout the night.
- Avoid the delicate eye area and do a patch test before using the serum for the very first time.
People Say
★4.3Overall rating based on 4.4k+ reviewsBased on a very large amount of data, users frequently praise this serum for its lightweight, non-sticky texture and its ability to fade post-acne marks and sun spots over time. Many report brighter, more even skin tone within a few weeks. A notable portion of reviewers found the results slow or nonexistent for stubborn hyperpigmentation and complained about the strong floral fragrance.
Highlights
Good texture Mostly Mentioned
- “lightweight and absorbs quickly”
- “non-sticky and hydrating”
- “great texture, feels gentle”
- “melts into the skin”
Brightens skin Often Mentioned
- “skin looks brighter”
- “more radiant complexion”
- “even skin tone”
- “glowy and healthier”
Fades dark spots Often Mentioned
- “visibly fades appearance of stubborn marks”
- “dark spots start to fade within a few days”
- “significant reduction in dark spots”
- “acne scars are lighter”
Strong fragrance Often Mentioned
- “scent is awful”
- “smells terrible”
- “strong floral fragrance”
- “headache inducing smell”
Gentle on skin Sometimes Noted
- “didn't irritate my skin”
- “suitable for sensitive skin”
- “soothing and hydrating”
- “no redness or stinging”
Ineffective for some Sometimes Noted
- “didn't see any significant improvement”
- “dark spots have not faded”
- “no change whatsoever”
- “results seem hit or miss”
Caused irritation Rarely Noted
- “dried my skin out”
- “skin felt tight”
- “caused redness and burning”
- “gave me pimples”
High price Rarely Noted
- “price is steep”
- “expensive for the size”
- “not worth the money”
- “bottle is small”
Sources: lovi.care, ulta.com, amazon.com, laroche-posay.us, lovelyskin.com, and more
Questions and answers
How well does La Roche-Posay Mela B3 work for oily skin?
La Roche-Posay Mela B3 Serum works reasonably well for oily skin, helping to refine texture and brighten your complexion while keeping shine under control. Because other treatments may fit this skin type better, an ideal choice for oily skin needs ingredients that control oil and balance moisture without clogging pores, such as niacinamide, lightweight hydrators, and soothing plant extracts.
Journal of Cosmetic Dermatology, 2021The British Journal of Dermatology, 2002
Which ingredients make this serum a good fit for oily skin?
Niacinamide and capryloyl salicylic acid make this serum a good fit for oily skin by helping control shine and refine texture. To suit oily skin even better, products of this type also need ingredients like zinc PCA and soothing extracts that manage excess oil and enlarged pores while keeping the skin calm.
Journal of Cosmetic Dermatology, 2021The British Journal of Dermatology, 2002
What does Niacinamide do for oily skin?
Niacinamide helps balance oily skin by significantly reducing excess oil production and shine. It is well tolerated and may improve skin texture without clogging pores.
Journal of Cosmetic and Laser Therapy, 2006Antioxidants, 2021
What does Thermal Spring Water do for oily skin?
Thermal Spring Water helps calm oily skin while keeping it comfortable during warm weather. It may help balance skin hydration and reduce greasiness when used as part of your daily routine.
Journal of the European Academy of Dermatology and Venereology, 2019
Where does this serum go in a skincare routine for oily skin?
This treatment serum goes in your evening routine, applied after cleansing and toning and before moisturizing. Putting treatments in the evening helps keep things simple and adds extra safety around sun exposure.
Can I use this serum with retinol, and in what order?
You can use this serum with retinol by applying this treatment first and following with your retinol at night, though oily skin of this type needs lightweight, oil-balancing formulas with soothing ingredients to prevent dryness.
How often should I use this serum?
This serum works in the evening routine, starting at once a week and gradually increasing as your skin handles it well. Oily skin of this type needs balancing ingredients like niacinamide and salicylic acid to manage oil and refine texture without irritation.
Journal of Cosmetic Dermatology, 2021The British Journal of Dermatology, 2002
Can this serum clog pores, cause breakouts or purging for oily skin?
This serum is unlikely to cause breakouts or clog pores on oily skin because it has an excellent safety profile and lacks harsh ingredients that trigger irritation. It helps refine texture and control shine, though oily skin often needs targeted oil-absorbing minerals and lightweight hydrators to work best.
Journal of Cosmetic Dermatology, 2021The British Journal of Dermatology, 2002
Is this serum fragrance-free and alcohol-free?
It has no drying alcohol and contains fragrance (parfum).
What the research says
Daily treatment with a facial serum containing multiple acids reduced post-inflammatory hyperchromia lesion grade and number by 29.4% at 56 days, and decreased skin oiliness by 30.7% at 7 days in Brazilian patients with acne vulgaris.
Journal of Cosmetic Dermatology, 2021Niacinamide 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 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 novel composition containing salicylic acid, capryloyl salicylic acid, HEPES, glycolic acid, citric acid, and dioic acid showed similar tolerance and efficacy compared with clindamycin 1% and benzoyl peroxide 5% gel in subjects with acne vulgaris.
Journal of Drugs in Dermatology, 2013Avène Thermal Spring Water significantly decreased postpeeling redness and reduced the overall sensitive scale of consumers by 47% compared to mineral-rich thermal spring water in human volunteers.
Journal of the European Academy of Dermatology and Venereology, 2020Topical 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, 2005Balneotherapy with thermal water altered specific skin microbiota at genus and species levels in healthy female volunteers compared to tap water, which produced no significant microbiome changes.
Life, 2023Malaysian thermal spring water as an adjunct to standard acne therapy improved skin hydration, reduced dryness and stinging, enhanced overall tolerability, and improved the acne disability index in patients with mild to moderate acne.
The Medical Journal of Malaysia, 2024A 2% Sphingomonas xenophaga ferment extract cream applied twice daily for 4 weeks significantly decreased facial vascular disorder scores compared to vehicle in 86 Caucasian female subjects, alongside dose-dependent inhibition of pre-kallikrein activity in vitro.
International Journal of Cosmetic Science, 2025Topical 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, 2019
Ingredients
Water, Dimethicone, Niacinamide, Glycerin, Propylene Glycol, Polysilicone-11, Silica, Bis-Peg Ppg-16 16 Peg Ppg-16 16 Dimethicone, Cystoseira Tamariscifolia Extract, 2-Mercaptonicotinoyl Glycine, Peg-20 Methyl Glucose Sesquistearate, Sodium Hyaluronate, Sodium Hydroxide, Sodium Thiosulfate, Carnosine, Poloxamer 338, Ammonium Polyacryloyldimethyl Taurate, Dipotassium Glycyrrhizate, Caprylic Capric Triglyceride, Capryloyl Salicylic Acid, Caprylyl Glycol, Citric Acid, Trisodium Ethylenediamine Disuccinate, Xanthan Gum, Pentylene Glycol, Octyldodecanol, Retinyl Palmitate, Tocopherol, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Phenoxyethanol, Ci 17200 Red 33, Parfum
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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PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
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Specialist dermatologist, MBBS, MD, IFAAD
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Dermatology MD
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Elina Nazarenko, MD
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Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
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