# Cos De BAHA Hydroquinone Brightening Serum for oily skin

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

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

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

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

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

Works for oily skin; other serums fit it better.

## Why this fit

- Offers moderate skin brightening for your oily skin due to arbutin and hydroquinone, which help to even skin tone and address hyperpigmentation. Salicylic acid and niacinamide provide mild keratolytic action and pore-minimizing effects, supporting your oily skin type.
- Aloe Barbadensis Leaf Extract and Sodium Hyaluronate offer hydration and soothing benefits, contributing to overall skin comfort.
- The product is safe for your oily skin, with no risks of irritation due to the absence of harsh ingredients.

## Fit by skin type

- [Oily skin](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/oily-skin): Average (this page)
- [Dry skin](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/dry-skin): Caution
- [Combination skin](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/combination-skin): Average
- [Sensitive skin](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/sensitive-skin): Low
- [Acne-prone skin](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/acne-prone-skin): Average
- [Skin with dark spots](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/dark-spots): Low
- [Mature skin](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/mature-skin): Low
- [Dry sensitive skin](https://lovi.care/skincare/it/p/cos-de-baha/hydroquinone-brightening-serum/for/dry-sensitive-skin): Warning
- [Oily acne-prone skin](https://lovi.care/skincare/it/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/))
- Topical hyaluronic acid filler serum combined with Botulinum toxin type A lengthened the duration of the toxin's effect in reducing wrinkles compared to Botulinum toxin type A alone. ([Dermatologic Therapy, 2022](https://pubmed.ncbi.nlm.nih.gov/36200921/))
- 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/))
- 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/))
- 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/))

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

## Questions and answers

### How well does Cos De BAHA Hydroquinone Brightening Serum work for oily skin?

Cos De BAHA Hydroquinone Brightening Serum offers moderate skin brightening and pore support for oily skin, though other products fit it better. Treatments that fit oily skin best need ingredients like niacinamide to control shine and zinc PCA or ferulic acid, along with light hydrators and skin protectors that do not clog pores.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

### Which ingredients make this serum a good fit for oily skin?

Salicylic acid and niacinamide help manage your oily skin by clearing pores and balancing shine, while hydroquinone and arbutin work to even out your skin tone. To be a better fit for oily skin, a product of this type needs ingredients that control oil and strengthen the skin barrier without clogging pores, such as niacinamide, ferulic acid, zinc PCA, ceramide NP, and panthenol.
Sources: [The British Journal of Dermatology, 2002](https://pubmed.ncbi.nlm.nih.gov/12100180/)

### What does Hydroquinone do for oily skin?

Hydroquinone helps fade dark spots and uneven pigmentation on oily skin. It is unlikely to cause issues when used correctly, but this type of skin needs gentle ingredients that balance oil while treating discoloration safely.
Sources: [Indian Journal of Dermatology, 2013](https://pubmed.ncbi.nlm.nih.gov/23716817/), [Skin Research and Technology, 2024](https://pubmed.ncbi.nlm.nih.gov/39233460/)

### What does Arbutin do for oily skin?

Arbutin helps fade dark spots and uneven patches on oily skin while keeping irritation rare. It lightens skin discolorations and manages dark spots without feeling heavy, though a product of this type also needs soothing and oil-controlling ingredients to keep oily skin balanced and clear.

### Where does this serum go in a skincare routine for oily skin?

This treatment goes in the evening routine after cleansing and before moisturizing. Oily skin works best with serums that provide oil control, pore-clearing ingredients, and light hydration to keep skin balanced without feeling heavy.

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

This treatment can be used alongside retinol by applying the retinol on different nights or ensuring your skin builds up tolerance, as combining strong active ingredients may increase the likelihood of dryness or irritation. To better suit your oily skin, this type of product also needs soothing and hydrating ingredients like aloe vera and sodium hyaluronate.

### How often should I use this serum?

You can use this treatment in your evening routine, starting just once a week and gradually using it more often if your skin tolerates it well. Oily skin works best with brightening treatments that also provide oil-balancing ingredients like niacinamide and salicylic acid.

### 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 contains gentle ingredients and has a safe formula without harsh additives. To better prevent breakouts and address oily skin concerns, this type of product needs pore-clearing ingredients like salicylic acid and soothing agents like aloe.

### Is this serum fragrance-free and alcohol-free?

Yes, it has no fragrance and no drying alcohol.

## Alternatives for oily skin

- [Neogen Dermalogy Real Niacinamide 15% Firming Serum](https://lovi.care/skincare/it/p/neogen-dermalogy/real-niacinamide-15-firming-serum/for/oily-skin) — Superior fit — €37.99 at Amazon
- [SkinCeuticals C E Ferulic](https://lovi.care/skincare/it/p/skinceuticals/c-e-ferulic/for/oily-skin) — High fit — €129.99 at Amazon
- [NEOGEN DERMALOGY REAL VITA C SERUM](https://lovi.care/skincare/it/p/neogen-dermalogy/real-vita-c-serum/for/oily-skin) — High fit — €34.95 at Amazon

## Pairs well with

- Cleanser: [CeraVe Foaming Facial Cleanser](https://lovi.care/skincare/it/p/cerave/foaming-facial-cleanser/for/oily-skin) — Superior fit — €24.75 at Amazon
- Hydrating Toner: [La Mer The Tonic](https://lovi.care/skincare/it/p/la-mer/the-tonic/for/oily-skin) — Superior fit — €103.91 at Amazon
- Moisturizer: [COSRX Oil-Free Ultra-Moisturizing Lotion with Birch Sap](https://lovi.care/skincare/it/p/cosrx/oil-free-ultra-moisturizing-lotion-with-birch-sap/for/oily-skin) — Superior fit — €18.47 at Amazon

## Where to buy

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