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iS Clinical Brightening Serum for acne-prone skin

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

iS Clinical Brightening Serum

Average

  • HighCombination Skin Fit
  • AverageEffectiveness
  • Low RiskSafety

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

This fit is calculated for the concerns frequently associated with acne-prone skin: breakouts, blackheads, and post-acne marks. 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 combination skin due to alpha-arbutin and saccharum officinarum extract, which help to even skin tone and provide mild exfoliation. Willow bark extract further supports this with its keratolytic and anti-inflammatory properties, making it suitable for your skin type.
  • While it offers general hydration and cleansing benefits, the formula lacks targeted ingredients like salicylic acid or benzoyl peroxide to effectively treat your acne, blemishes, and breakouts.
  • The product is generally safe for combination skin, though alcohol denat and menthol may pose a slight risk of irritation.

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.

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 acne-prone skin?

This serum works moderately well for acne-prone skin, providing gentle brightening and mild exfoliation, but it lacks targeted blemish-fighting ingredients like salicylic acid or benzoyl peroxide. It is generally safe, though alcohol and menthol may carry a slight risk of irritation. Acne-prone skin needs products with ingredients like niacinamide, propolis, or zinc PCA that balance oil, hydrate, and target breakouts without irritation.

Heliyon, 2023

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

Alpha-arbutin, sugarcane extract, and willow bark extract help even skin tone and gently clear pores, making the serum a moderate fit for your skin. However, since this skin needs ingredients like niacinamide, propolis, zinc PCA, or salicylic acid to properly target breakouts and keep skin balanced without irritation, this type of product requires those additions to work best.

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

Alpha-arbutin is primarily used to fade dark spots and uneven tone rather than treat acne, so it is a weak fit for acne-prone skin. To care for blemish-prone skin, a product of this type needs soothing and clarifying ingredients that help keep pores clear and calm redness.

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

Ascophyllum Nodosum Extract helps calm red, irritated skin and keeps pores clear, making it a great addition to your routine if you deal with breakouts. It helps balance oil and soothe the skin without feeling heavy.

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

This serum goes in your evening routine, as treatments with active ingredients are used then for simplicity and extra safety around sun exposure. While it offers some brightening and soothing benefits for your skin, acne-prone skin needs products with targeted ingredients like salicylic acid or benzoyl peroxide to effectively treat blemishes and breakouts.

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

You can use this serum with retinol by applying the serum first and following with your retinol. Because this formula lacks acne-fighting ingredients, an acne-prone routine needs targeted components like salicylic acid or benzoyl peroxide.

How often should I use this serum?

You can use this treatment in the evening as part of your routine. While it is generally safe for your skin, alcohol denat and menthol may pose a slight risk of irritation. Acne-prone skin needs a product of this type that also contains targeted ingredients like salicylic acid or benzoyl peroxide to effectively treat blemishes and breakouts.

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

This serum is unlikely to cause major breakouts, but it lacks targeted ingredients like salicylic acid or benzoyl peroxide to effectively treat acne. An acne-prone skin needs blemish-fighting ingredients and exfoliants like salicylic acid to clear pores and prevent breakouts.

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

  • Cooling skin temperature or applying topical menthol reduced histamine-induced itch intensity and flare diameters in healthy male volunteers.

    Neuroscience Letters, 1995

  • 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 acne-prone skin better

  • Menthol in this serum

    Topical menthol induced significant pain, cold sensations, punctate and cold hyperalgesia, and increased cutaneous perfusion in 10 subjects compared to ethanol control, acting as a human model for cold pain by sensitizing peripheral cold C nociceptors and activating cold-specific A delta fibres.

    Brain, 2004

  • 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

  • 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

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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