Cos De BAHA Hydroquinone Brightening Serum for oily acne-prone skin
Hydroquinone
Arbutin
Niacinamide
Kojic Acid
Salicylic AcidAverage
- HighOily Skin Fit
- AverageEffectiveness
- HighSafety
Works for oily acne-prone skin; other serums fit it better.
This fit is calculated for the concerns frequently associated with oily acne-prone skin: shine, breakouts, blemishes, and enlarged pores. 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 skin brightening for you due to arbutin and niacinamide, which help even skin tone, while salicylic acid and lactic acid provide keratolytic action suitable for oily skin.
- Aloe Barbadensis Leaf Extract and Sodium Hyaluronate offer hydration, supporting general skin health without directly targeting your primary concerns of acne, blemishes, and breakouts.
- The product is safe for your oily skin, with no risks of irritation due to the absence of harsh ingredients and the inclusion of soothing agents.
How to apply
- Could be used as part of your PM routine. Start 3 times a week and build up to daily use if your skin tolerates it well.
- Apply your serum after cleansing and toning, but before putting on your moisturizer.
- Gently press 2 to 3 drops of the serum into your skin and let it absorb for a minute.
- Apply the serum on clean, dry skin to help manage your blemishes safely.
- Do a patch test before your first use and avoid the delicate eye area.
People Say
★4.6Overall rating based on 200+ reviewsThis serum is highly effective for hyperpigmentation and dark spots, with many users reporting visible improvements in skin tone and clarity. While generally well-tolerated, some users note that the product can oxidize and that clear instructions for use are sometimes lacking. A significant number of reviews also mention that the price is affordable and the formula is gentle.
Highlights
Fades dark spots Mostly Mentioned
- “Only thing that helped with my long-standing pigmentation.”
- “Really fades my red and brown marks from acne.”
- “Effective in treating severe dark spots, hyperpigmentation, melasma.”
Visible results Often Mentioned
- “Works faster in 7 days you start seeing visible results.”
- “Initial improvements in 4-6 weeks with consistent use.”
- “I notice a difference right away on fresh marks.”
Affordable price Sometimes Noted
- “A price is affordable.”
- “Sometimes they'll have it for as low as like 10 bucks.”
Gentle formula Sometimes Noted
- “A lot more gentle than prescription 4% hydroquinone.”
- “It hasn't caused any sensitivity for me.”
- “Soothes and moisturizes sensitive skin.”
Product oxidation Sometimes Noted
- “My first bottle oxidized before I finished it.”
- “It might turn brown... it might get oxidized.”
- “The additive-free formula may be prone to discoloration.”
Lack of instructions Rarely Noted
- “They do not explain anywhere on their website the protocol.”
- “Risky for some people to use... read more about it.”
- “Does not explain very well all the potential side effects.”
Slow/No results Rarely Noted
- “I've been using it for a month and haven't noticed any results.”
- “Doesn't work as well for really old marks.”
- “Not quite potent as I think.”
Sources: lovi.care, orientalbeautyxo.com, gopicky.com, elikoglow.ca, reddit.com, youtube.com, and more
Questions and answers
How well does Cos De BAHA Hydroquinone Brightening Serum work for oily acne-prone skin?
Cos De BAHA Hydroquinone Brightening Serum works moderately well for oily acne-prone skin, offering even skin tone and clearing action through ingredients like arbutin, niacinamide, and salicylic acid. It is safe and hydrating, though it lacks direct blemish-fighting strength for your primary concerns. To fit oily acne-prone skin best, a treatment needs effective ingredients like niacinamide and vitamin C, alongside oil-controlling components and soothing extracts that manage excess oil and breakouts without heavy or irritating elements.
The British Journal of Dermatology, 2002BioMed Research International, 2020
Which ingredients make this serum a good fit for oily acne-prone skin?
This serum works for your oily acne-prone skin because it contains niacinamide and arbutin to brighten dark spots, alongside salicylic acid and lactic acid to clear pores. A treatment for this skin type needs ingredients that control excess oil, soothe breakouts, and balance texture without feeling heavy.
The British Journal of Dermatology, 2002BioMed Research International, 2020
What does Hydroquinone do for oily acne-prone skin?
Hydroquinone helps fade dark spots left behind by acne on oily skin. It is often combined with other treatments to manage breakouts and improve evenness while keeping irritation low.
What does Arbutin do for oily acne-prone skin?
Arbutin helps fade dark spots and uneven areas left behind by breakouts on oily, acne-prone skin. It is generally well tolerated, though anyone with easily irritated skin should patch test first to ensure it agrees with them.
Journal of Cosmetic Dermatology, 2015Journal of Cosmetic Dermatology, 2025
Where does it go in a skincare routine for oily acne-prone skin?
Use this treatment in the evening routine, starting just once a week and applying it after your cleansing toner. This product of this type needs balancing brighteners and soothing acne-fighting ingredients to properly care for oily, acne-prone skin.
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 on alternate nights to prevent irritation. Oily acne-prone skin needs products with targeted acne-fighting ingredients like retinoids or benzoyl peroxide to effectively manage breakouts.
American Family Physician, 2012BioMed Research International, 2020
How often should I use it?
Start by using this treatment once a week in your evening routine, and if your skin tolerates it well and you see good results, you can carefully use it more often. This gentle approach helps your oily acne-prone skin adjust safely to the active ingredients.
Can this serum clog pores, cause breakouts or purging for oily acne-prone skin?
This serum is unlikely to clog pores or cause breakouts on your oily skin, as it contains soothing ingredients and is safe for your skin type without harsh additives. However, because it contains salicylic acid and lactic acid, you may experience mild skin shedding or purging when you first start using it. Oily acne-prone skin typically needs products with targeted acne-fighting ingredients like benzoyl peroxide or retinoids alongside gentle exfoliants to truly keep breakouts at bay.
BioMed Research International, 2020Journal of Cosmetic Dermatology, 2024
Is it 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 moisturizer containing licochalcone A, 1,2-decanediol, L-carnitine, and salicylic acid significantly reduced noninflammatory, inflammatory, and total acne lesion counts compared to a vehicle control in Thai patients during a 12-week maintenance phase.
BioMed Research International, 2020Twice daily application of a multitargeted dermocosmetic cream provided comparable efficacy to benzoyl peroxide 5% gel in reducing inflammatory, non-inflammatory, and total lesions in 150 Caucasian subjects with mild-to-moderate acne over 56 days, while demonstrating superior skin tolerability.
Journal of Cosmetic Dermatology, 2024TFC-1067 and 2% hydroquinone both significantly lightened facial dyschromia after 8 and 12 weeks in 48 healthy female subjects, but only hydroquinone also lightened normal skin.
Journal of Cosmetic Dermatology, 2020A non-hydroquinone topical formulation (SKNB19) improved hyperpigmentation by 28.5% in patient self-assessment and 27% in independent reviewer assessment compared with 4% hydroquinone in 18 adult subjects, while showing significantly less irritation and better tolerability.
Journal of Cosmetic Science, 2020Encapsulation of alpha arbutin in an optimized ethosomal gel significantly improved skin melanin reduction, moisture content, and elasticity in human volunteers compared to conventional formulations.
Heliyon, 2023Combining a home-based radiofrequency device and arbutin cream reduced mMASI scores by 25.6% and melanin index by 22.8% at 8 weeks compared to baseline in 38 participants.
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, 2005A topical formulation containing kojic acid, emblica extract, and glycolic acid demonstrated efficacy parity compared with hydroquinone 4% in multiethnic participants with mild to moderate facial dyschromia.
Cutis, 2010A nanoemulsion containing 1 mg/mL kojic dipalmitate and 5% rosehip oil demonstrated high incorporation efficiency, suitable physicochemical stability, antioxidant and depigmenting efficacy close to 1 mM ascorbic acid, and no cytotoxicity at concentrations from 0.06% to 1% in vitro.
Pharmaceutics, 2023Topical application of iron chelators kojic acid and deferiprone significantly accelerated wound healing in rats compared to control groups, with deferiprone showing superior efficacy due to higher antioxidant and iron chelation abilities.
International Wound Journal, 2013Cryotherapy with liquid nitrogen achieved a higher cure rate (39%) than salicylic acid (24%) and a wait-and-see approach (16%) for cutaneous warts at 13 weeks in primary care patients.
CMAJ, 2010Treatment with 2% supramolecular salicylic acid hydrogel resulted in a regression and markedly improvement rate of 51.01% compared to 43.10% for Adapaline gel in patients with mild to moderate facial acne vulgaris, showing no significant difference in efficacy.
Journal of Cosmetic Dermatology, 2024Topical 5% benzoyl peroxide plus salicylic acid achieved the greatest lesion reduction at early 2 to 4 week time points compared to benzoyl peroxide, clindamycin, and combination benzoyl peroxide/clindamycin, while 5% benzoyl peroxide plus salicylic acid and combination benzoyl peroxide/clindamycin showed similar efficacy at 10 to 12 weeks in acne patients.
Journal of the American Academy of Dermatology, 2010
Why other serums fit oily acne-prone skin better
A 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, 2018Niacinamide and ferulic acid incorporated in a stable multiple emulsion successfully reduced melanin, sebum, and skin erythema while improving skin elasticity and hydration in human skin compared to a placebo.
BioMed Research International, 2022
Ingredients
Aloe Barbadensis Leaf Extract, Propanediol, Arbutin, Niacinamide, 1,2-Hexanediol, Hydroquinone, Citric Acid, Sodium Citrate, Sodium Hyaluronate, Salicylic Acid, Kojic Acid, Lactic Acid, 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
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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