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iS Clinical Brightening Serum for oily acne-prone skin

Rated by Lovi · Unbiased, science-based skincare AI trained on real user outcomes

iS Clinical Brightening Serum

Average

  • HighOily Skin Fit
  • AverageEffectiveness
  • Low RiskSafety

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 brightening for your oily skin due to alpha-arbutin and saccharum officinarum extract, which help to even skin tone and provide hydration.
  • The presence of willow bark extract offers some keratolytic action, but the formula lacks sufficient seboregulating ingredients for optimal results on your acne, blemishes, and breakouts.
  • The product is generally safe for your oily skin, though alcohol denat and menthol may pose a slight risk of irritation.

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 100+ reviews

This review data is based on limited data. Users frequently report visible improvements in dark spots, skin radiance, and overall texture, noting that the formula is generally gentle enough for various skin types, including sensitive skin. Some users may find it less effective for stubborn conditions or notice potential irritation if used too frequently.

Highlights

  • Fades dark spots Mostly Mentioned
    • “Dark spots from acne are fading”
    • “Reduced dark spots from previous acne”
    • “Lightening of scarring”
  • Evens skin tone Often Mentioned
    • “Truly even outs my skin”
    • “Provides brightening and balance”
    • “More even skin and calmer”
  • Gentle formula Sometimes Noted
    • “Great for my fair sensitive skin”
    • “Non-irritant”
    • “Gentle enough for sensitive skin”
  • Improves texture Sometimes Noted
    • “Refine skin texture”
    • “Smoothes and softens”
    • “Sleeker, more toned look”
  • Slow/no results Sometimes Noted
    • “Didn't reduce dark spots as quickly as I'd hoped”
    • “Can't tell if it is making any difference”
    • “Didn't really work for me”
  • Potential breakouts Rarely Noted
    • “Started getting hormonal acnes”
    • “Caused breakouts”
  • Price point Rarely Noted
    • “For the price, I was a bit disappointed”
    • “Expensive for the results”
  • Tingling sensation Rarely Noted
    • “Active product may produce a slight tingling sensation”
    • “Can be too drying if over used”

Sources: lovi.care, lovelyskin.com, dermstore.com, beautifiedyou.com, dermacaredirect.com, and more

Questions and answers

How well does iS Clinical Brightening work for oily acne-prone skin?

iS Clinical Brightening Serum is an average fit for oily acne-prone skin, offering moderate brightening while carrying a slight risk of irritation from alcohol denat and menthol. To work best for this skin type, a treatment needs ingredients like niacinamide, propolis, or Vitamin C to control excess oil and target blemishes without irritation.

Heliyon, 2023

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

Alpha-arbutin and sugar cane extract make this serum a fit by offering moderate brightening and hydration for your oily skin. Treatments of this type need effective ingredients like niacinamide, propolis, and vitamin C that control excess oil, clear breakouts, and soothe the skin without any risk of irritation.

Heliyon, 2023

What does Alpha-Arbutin do for oily acne-prone skin?

Alpha-arbutin does not target acne or oiliness directly, but it helps fade dark spots left behind by breakouts on oily skin. Because it works gently, it is unlikely to clog pores or trigger new pimples while evening out your skin tone. Oily, acne-prone skin still needs ingredients that clear pores and calm redness to fully address breakouts alongside dark spots.

What does Ascophyllum Nodosum Extract do for oily acne-prone skin?

Ascophyllum Nodosum Extract helps calm oily, acne-prone skin by soothing irritation and balancing excess oil. Because skin of this type needs lightweight hydration and ingredients that clear pores without clogging them, this extract works well to keep your face feeling fresh and smooth.

Where does this serum go in a skincare routine for oily acne-prone skin?

This treatment goes in the evening routine, applied after cleansing and before moisturizing. Oily acne-prone skin needs a treatment of this type to also include strong oil-controlling and breakout-clearing ingredients.

Can I use it with retinol, and in what order?

You can use this treatment alongside retinol, applying the treatment first in your evening routine and following with your retinol and moisturizer. Because this product contains alcohol and menthol, it may pose a slight risk of irritation when combined with strong ingredients.

How often should I use this serum?

You can use this treatment in your evening routine. For oily acne-prone skin, a product of this type needs stronger oil-balancing ingredients to manage breakouts.

Can it clog pores, cause breakouts or purging for oily acne-prone skin?

It is unlikely to cause major breakouts on your oily skin, though alcohol denat and menthol may pose a slight risk of irritation. Oily acne-prone skin needs products with stronger oil-controlling and pore-clearing ingredients to keep breakouts completely under control.

Is this serum fragrance-free and alcohol-free?

It has no fragrance and contains drying alcohol (alcohol denat).

What the research says

  • 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

  • Topical 30% l-menthol decreased cold pain thresholds and enhanced pain responses to suprathreshold noxious cold stimuli without affecting other stimuli in 39 healthy subjects compared to ethanol control.

    Pain, 2006

  • 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

  • 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

  • Polyvinyl pyrrolidone-K90/Eudragit RL100 dissolving microneedle patches loaded with alpha-arbutin and resveratrol enhanced intradermal delivery by approximately 2.6 times compared to cream and slightly decreased the melanin index in human participants without causing skin irritation.

    Biomaterials Science, 2023

  • Fermented bilberry extract improved wrinkle depth, skin smoothness, roughness, firmness, elasticity, antioxidant capacity, and complexion evenness compared to a placebo in 66 subjects over 84 days.

    Nutrients, 2024

  • Topical application of oil-in-water creams containing wild bilberry leaves extract and seeds oil produced significant beneficial effects on the skin of healthy human volunteers.

    Antioxidants, 2021

  • Bilberry fruit extract incorporated into chitosan-based hydrogels demonstrated antioxidant, anti-hyaluronidase, and anti-tyrosinase activities, supporting their potential use in topical anti-aging preparations.

    Antioxidants, 2024

  • A botanical face cleanser with hops and willow bark extract continuously reduced skin sebum levels without reactive seborrhea after treatment in 21 healthy volunteers compared to a sodium laureth sulfate cleanser, with neither cleanser causing skin irritation.

    Journal of Cosmetic Dermatology, 2019

  • Bioactive lipid nanocarriers co-loaded with willow bark or ivy leaf extracts and UV-filters provided pronounced UVA photoprotection up to an SPF-equivalent value of 13 and a maximum in vivo skin hydration effect of 97% when prepared with pomegranate oil.

    Nanomaterials, 2022

  • A topical serum containing 0.5% salicin applied twice daily reduced visible signs of skin aging, including wrinkles and tactile roughness, in 30 female subjects over 12 weeks compared to baseline.

    Journal of Cosmetic Dermatology, 2010

  • Repeated short-contact 70% glycolic acid peels provided superior results in atrophic acne scars compared to daily low-strength glycolic acid cream or placebo in 58 women over 24 weeks.

    International Journal of Dermatology, 2000

Why other serums fit oily acne-prone skin better

Ingredients

Butylene Glycol, Water, Glycerin, Alcohol Denat, Ascophyllum Nodosum Extract, Saccharum Officinarum Extract, Vaccinium Myrtillus Leaf Extract Fruit, Alpha-Arbutin, Glyceryl Polyacrylate, Polyporus Umbellatus Extract Mushroom Extract, Willow Bark Extract, Menthol, Phenoxyethanol

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.

  • Nadia Kapleva, MS

    Nadia Kapleva, MS

    Co-founder, Medical Director

    Cosmetic chemist, cosmetologist, aesthetic products developer

  • Alexey Shagraev, PhD

    Alexey Shagraev, PhD

    Co-founder, CEO and CTO

    PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex

  • Dr. Sofía Perea Pérez, MD, MSc

    Dr. Sofía Perea Pérez, MD, MSc

    Medical Board

    Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine

  • Aishani Shah, MD

    Aishani Shah, MD

    Medical Board

    Specialist dermatologist, MBBS, MD, IFAAD

  • Asya Zubkova, MS

    Asya Zubkova, MS

    Medical Board

    Cosmetic chemist, SCS, IFSCC member

  • Hanna Kurets, MD

    Hanna Kurets, MD

    Medical Board, Medical Advisor

    Dermatology MD

  • Elina Nazarenko, MD

    Elina Nazarenko, MD

    Medical Board

    Dermatology and diagnostic consultant

  • Victoria Derkova, MS

    Victoria Derkova, MS

    Medical Board

    Cosmetic chemist, cosmetic development technologist

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