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

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

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

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

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

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

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

## Why this fit

- Offers moderate skin brightening for your combination skin due to arbutin and hydroquinone, which help to even skin tone, while salicylic acid and lactic acid provide keratolytic action and niacinamide aids in seboregulation.
- The formula provides general skin brightening and hydration with niacinamide and sodium hyaluronate, though it does not directly target acne and blemishes.
- The product is safe for your acne-prone skin as it lacks prohibited or harsh ingredients, minimizing irritation risks.

## Fit by skin type

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

## 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/))
- Treatment with a combination of niacinamide and hyaluronic acid improved skin aging signs and demonstrated a senomorphic effect by decreasing SASP and autocrine signaling genes in women. ([Scientific Reports, 2024](https://pubmed.ncbi.nlm.nih.gov/39009698/))
- 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/))
- 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 acne-prone skin better

- Topical nicotinamide plus an antibacterial adhesive agent and zinc-pyrrolidone carboxylic acid combined with adapalene significantly reduced noninflammatory acne lesions by the second week of therapy compared to placebo with adapalene in patients with moderate acne vulgaris. ([The Journal of Clinical and Aesthetic Dermatology, 2020](https://pubmed.ncbi.nlm.nih.gov/32983333/))
- 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

- Use your serum as part of your PM routine and start 3x/week before working up to daily use.
- Apply this treatment after cleansing and toner, and before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and let it absorb for a minute.
- Apply the product on clean, dry skin to help manage your breakouts safely.
- Avoid the eye area and do a patch test before your first use.
- Video: https://storage.pora.ai/c879dda8655a61c19d3d8c9ebad6b06d.mp4

## Questions and answers

### How well does Cos De BAHA Hydroquinone Brightening Serum work for acne-prone skin?

This serum works moderately well for acne-prone skin, providing safe skin brightening and hydration without directly targeting breakouts. Treatments that fit this skin better need ingredients like niacinamide, zinc, and soothing antioxidants to manage blemishes and control oil while keeping skin balanced.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

### Which ingredients make this serum a good fit for acne-prone skin?

Salicylic acid, lactic acid, and niacinamide help manage breakouts and oiliness, while aloe and hyaluronic acid keep your acne-prone skin comfortable. This serum is an average fit because it lacks direct blemish-targeting ingredients and soothing extras like propolis or zinc PCA that keep combination and breakout-prone skin balanced.
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 acne-prone skin?

Hydroquinone is not designed to treat acne and is unlikely to help with breakouts or blemishes. This type of skin needs ingredients that clear pores, calm redness, and balance oil.

### What does Arbutin do for acne-prone skin?

Arbutin is a poor fit for acne-prone skin because it focuses on dark spots rather than breakouts. A product for this skin type needs ingredients that clear pores and calm redness.

### Where does it go in a skincare routine for acne-prone skin?

This treatment goes in your evening routine after cleansing and before moisturizing, starting once a week and gradually building up as your skin gets used to it. Acne-prone skin works best with products that clear breakouts while keeping skin calm and balanced using ingredients like salicylic acid and niacinamide.

### Can I use this serum with retinol, and in what order?

You can use this serum with retinol by applying the retinol first at night and following with this treatment, or by using them on alternate nights to keep your skin calm. Because both ingredients can be strong, spacing them out helps lower the risk of dryness and irritation.

### How often should I use it?

Use this treatment in your evening routine once a week to start, and if your skin tolerates it well and shows good results, you can carefully use it more often. This product is unlikely to cause irritation on acne-prone skin because it lacks harsh ingredients.

### Can this serum clog pores, cause breakouts or purging for acne-prone skin?

This serum is unlikely to clog pores or cause breakouts for acne-prone skin since it lacks harsh ingredients, but it does not directly target acne. Skin of this type needs formulas with ingredients that clear pores and calm breakouts.

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

Yes, it has no fragrance and no drying alcohol.

## Alternatives for acne-prone skin

- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/es/p/skinceuticals/c-e-ferulic/for/acne-prone-skin) — Superior fit — €169.99 at Amazon
- [Neogen Dermalogy Real Vitamin C Serum](https://lovi.care/skincare/es/p/neogen-dermalogy/real-vitamin-c-serum/for/acne-prone-skin) — Superior fit — €29.76 at Amazon
- [Skin1004 Probio-Cica Intensive Ampoule](https://lovi.care/skincare/es/p/skin1004/probio-cica-intensive-ampoule/for/acne-prone-skin) — High fit — €21.99 at Amazon

## Pairs well with

- Cleanser: [B.LAB Matcha Hydrating Foam Cleanser](https://lovi.care/skincare/es/p/b-lab/matcha-hydrating-foam-cleanser/for/acne-prone-skin) — Superior fit — €11.99 at Amazon
- Hydrating Toner: [Paula's Choice Resist Advanced Replenishing Toner](https://lovi.care/skincare/es/p/paula-s-choice/advanced-replenishing-toner/for/acne-prone-skin) — Superior fit — €34.00 at Amazon
- Moisturizer: [SKIN1004 Centella Cream](https://lovi.care/skincare/es/p/skin1004/centella-cream/for/acne-prone-skin) — Superior fit — €17.49 at Amazon

## Where to buy

No store in Spain 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/acne-prone-skin
- United Kingdom: https://lovi.care/skincare/uk/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Ireland: https://lovi.care/skincare/ie/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Germany: https://lovi.care/skincare/de/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- France: https://lovi.care/skincare/fr/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Italy: https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Netherlands: https://lovi.care/skincare/nl/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Spain: https://lovi.care/skincare/es/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin (this page)
- Canada: https://lovi.care/skincare/ca/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Australia: https://lovi.care/skincare/au/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Singapore: https://lovi.care/skincare/sg/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- Saudi Arabia: https://lovi.care/skincare/sa/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin
- United Arab Emirates: https://lovi.care/skincare/ae/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin