# Cos De BAHA Hydroquinone Brightening Serum for oily acne-prone skin

**Lovi Fit: Average fit for oily acne-prone skin.**
Oily Skin Fit: High · Effectiveness: Average · Safety: High.

Page: https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/oily-acne-prone-skin

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for the United States.

Brand: [Cos De BAHA](https://lovi.care/skincare/brands/cos-de-baha)
Category: [Serums and treatments](https://lovi.care/skincare/best/serums)

This fit is calculated for the concerns frequently associated with oily acne-prone skin: shine, breakouts, blemishes, and enlarged pores. For scores based on a full skin profile (12D face scan, goals, preferences), use the Lovi app.

Works for oily acne-prone skin; other serums fit it better.

## Why this fit

- 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.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/oily-skin): Average
- [Dry skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/dry-skin): Caution
- [Combination skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/combination-skin): Average
- [Sensitive skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/sensitive-skin): Low
- [Acne-prone skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin): Average
- [Skin with dark spots](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/dark-spots): Low
- [Mature skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/mature-skin): Low
- [Dry sensitive skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/dry-sensitive-skin): Warning
- [Oily acne-prone skin](https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/oily-acne-prone-skin): Average (this page)

## Key ingredients

Hydroquinone, Arbutin, Niacinamide, Kojic Acid, Salicylic Acid

## 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, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/))
- A 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, 2020](https://pubmed.ncbi.nlm.nih.gov/33150170/))
- Twice 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, 2024](https://pubmed.ncbi.nlm.nih.gov/37941097/))
- TFC-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, 2020](https://pubmed.ncbi.nlm.nih.gov/33098161/))
- A 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, 2020](https://pubmed.ncbi.nlm.nih.gov/33022197/))
- Encapsulation 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, 2023](https://pubmed.ncbi.nlm.nih.gov/37681127/))
- Combining 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, 2025](https://pubmed.ncbi.nlm.nih.gov/39918262/))
- Topical 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, 2021](https://pubmed.ncbi.nlm.nih.gov/33103316/))
- Topical 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, 2008](https://pubmed.ncbi.nlm.nih.gov/17882270/))
- Topical 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, 2005](https://pubmed.ncbi.nlm.nih.gov/16029679/))
- A 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, 2010](https://pubmed.ncbi.nlm.nih.gov/21049734/))
- A 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, 2023](https://pubmed.ncbi.nlm.nih.gov/36839792/))
- Topical 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, 2013](https://pubmed.ncbi.nlm.nih.gov/22621771/))
- Cryotherapy 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, 2010](https://pubmed.ncbi.nlm.nih.gov/20837684/))
- Treatment 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, 2024](https://pubmed.ncbi.nlm.nih.gov/38590107/))
- Topical 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](https://pubmed.ncbi.nlm.nih.gov/20488582/))

## 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, 2018](https://pubmed.ncbi.nlm.nih.gov/30588129/))
- Niacinamide 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](https://pubmed.ncbi.nlm.nih.gov/35342760/))

## What reviewers say

This 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.

- Liked: Fades dark spots (mostly mentioned)
- Liked: Visible results (often mentioned)
- Liked: Affordable price (sometimes noted)
- Liked: Gentle formula (sometimes noted)
- Disliked: Product oxidation (sometimes noted)
- Disliked: Lack of instructions (rarely noted)
- Disliked: Slow/No results (rarely noted)

## 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.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## 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.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/), [BioMed Research International, 2020](https://pubmed.ncbi.nlm.nih.gov/33150170/)

### 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.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/), [BioMed Research International, 2020](https://pubmed.ncbi.nlm.nih.gov/33150170/)

### 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.
Sources: [Dermatologic Therapy, 2004](https://pubmed.ncbi.nlm.nih.gov/15113286/)

### 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.
Sources: [Journal of Cosmetic Dermatology, 2015](https://pubmed.ncbi.nlm.nih.gov/26119285/), [Journal of Cosmetic Dermatology, 2025](https://pubmed.ncbi.nlm.nih.gov/39555866/)

### 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.
Sources: [American Family Physician, 2012](https://pubmed.ncbi.nlm.nih.gov/23062156/), [BioMed Research International, 2020](https://pubmed.ncbi.nlm.nih.gov/33150170/)

### 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.
Sources: [BioMed Research International, 2020](https://pubmed.ncbi.nlm.nih.gov/33150170/)

### 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.
Sources: [BioMed Research International, 2020](https://pubmed.ncbi.nlm.nih.gov/33150170/), [Journal of Cosmetic Dermatology, 2024](https://pubmed.ncbi.nlm.nih.gov/37941097/)

### Is it fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for oily acne-prone skin

- [Beauty of Joseon Propolis + Niacinamide Glow Serum](https://lovi.care/skincare/p/beauty-of-joseon/propolis-niacinamide-glow-serum/for/oily-acne-prone-skin) — Superior fit — $16.75 at Amazon
- [Neogen Dermalogy Real Vitamin C Serum](https://lovi.care/skincare/p/neogen-dermalogy/real-vitamin-c-serum/for/oily-acne-prone-skin) — Superior fit — $25.08 at Amazon
- [NEOGEN DERMALOGY REAL VITA C SERUM](https://lovi.care/skincare/p/neogen-dermalogy/real-vita-c-serum/for/oily-acne-prone-skin) — High fit — $25.08 at Amazon

## Pairs well with

- Cleanser: [CeraVe Foaming Facial Cleanser](https://lovi.care/skincare/p/cerave/foaming-facial-cleanser/for/oily-acne-prone-skin) — Superior fit — $15.97 at Amazon
- Hydrating Toner: [Paula's Choice Pore-Reducing Toner](https://lovi.care/skincare/p/paula-s-choice/skin-balancing-pore-reducing-toner/for/oily-acne-prone-skin) — Superior fit — $25.60 at Amazon
- Moisturizer: [COSRX Oil-Free Ultra-Moisturizing Lotion with Birch Sap](https://lovi.care/skincare/p/cosrx/oil-free-ultra-moisturizing-lotion-with-birch-sap/for/oily-acne-prone-skin) — Superior fit — $18.99 at Amazon

## Where to buy

No store in United States has a checked price for this product, so the page shows none.

## 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
## About the Lovi Fit

Lovi: Unbiased, science-based skincare AI trained on real user outcomes.

Lovi calculates every fit score from the full ingredient list with brand-independent rules its 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. Levels from best to worst: Superior, High, Average, Low, Caution, Warning.

Behind this fit score: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board).

Page built Nov 8, 2026.

More from Lovi: https://lovi.care/skincare/llms.txt

## This page in other countries

- United States: https://lovi.care/skincare/p/cos-de-baha/hydroquinone-brightening-serum/for/oily-acne-prone-skin (this page)
- United Kingdom: https://lovi.care/skincare/uk/p/cos-de-baha/hydroquinone-brightening-serum/for/oily-acne-prone-skin
- Ireland: https://lovi.care/skincare/ie/p/cos-de-baha/hydroquinone-brightening-serum/for/oily-acne-prone-skin
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