Brightening Serum
Isoi
A brightening serum featuring arbutin, niacinamide, and 3-O-ethyl ascorbic acid to target dark spots and uneven skin tone. Contains Bulgarian rose water and multiple forms of hyaluronic acid for hydration and radiance.
Key Ingredients
Humectant that attracts and retains moisture
Skin brightener that inhibits melanin production
Humectant and solvent that enhances hydration
+ 15 more ingredients
Ingredient Effectiveness Data
Editorial baseline from K-beauty clinical research and community consensus. Real subscriber reports layer on as the community grows.
More Korean Serums
Frequently Asked Questions
What are the key ingredients in Brightening Serum?
The key active ingredients in Brightening Serum by Isoi include Rose Water (Hydrating and soothing botanical water), Glycerin (Humectant that attracts and retains moisture), Arbutin (Skin brightener that inhibits melanin production), Niacinamide (Vitamin B3) (brightening, pore-minimizing, barrier-support), Betaine (Humectant and skin conditioning agent). Drawing on K-beauty research and community consensus, key ingredients show 82% effectiveness for acne in oily skin types. Seoul Sister tracks ingredient effectiveness across 5,900+ K-beauty products to provide data-backed recommendations.
Is Brightening Serum good for sensitive skin?
Brightening Serum is a Korean serum by Isoi. Sensitive skin compatibility depends on individual triggers and allergies. Seoul Sister's AI advisor Yuri analyzes all 20 ingredients against your specific skin type, concerns, and known allergens to provide a personalized compatibility score. Common irritant ingredients like fragrance, alcohol denat, and essential oils are flagged automatically.
Is Brightening Serum good for oily skin?
For oily skin, the key factors in evaluating Brightening Serum are comedogenic ingredient ratings, oil content, and finish type. This serum contains 14 active ingredients. Seoul Sister's database cross-references each ingredient's comedogenic rating (0-5 scale) against your skin type to identify potential pore-clogging risks. Subscribe for a personalized oily skin compatibility analysis.
How much does Brightening Serum cost?
Brightening Serum by Isoi starts from $41.19 USD for [Original Product] Brightening Serum 40ml [Special Gift] Brightening Serum 20ml, Eye&Wrinkle Patch 1 Set (3P). Seoul Sister tracks pricing at Olive Young, with price drop alerts for Pro members. Seoul Sister does not sell products — we compare retailer pricing so you can buy from the source.
Where to buy Brightening Serum?
Brightening Serum by Isoi is tracked at Olive Young. Prices start from $41.19 USD. Seoul Sister verifies retailer authenticity and tracks counterfeit indicators to help you buy genuine Korean skincare products. We are an advice platform and never sell products ourselves.
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