
Begins by JUNGSAEMMOOL
A brightening serum formulated with glutathione, pink guava extract, niacinamide, and alpha-arbutin to target dark spots and uneven skin tone. Suitable for those seeking to reduce hyperpigmentation and achieve a more radiant complexion.
Humectant and solvent that enhances hydration
Humectant and solvent for ingredient delivery
Solvent and preservative booster
+ 15 more ingredients
Editorial baseline from K-beauty clinical research and community consensus. Real subscriber reports layer on as the community grows.

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The key active ingredients in Pink Guava Glutathione Blemish Serum Refill Set by Begins by JUNGSAEMMOOL include Niacinamide (Vitamin B3) (brightening, pore-minimizing, barrier-support), Alpha-Arbutin (Skin brightener that inhibits melanin production), Glycerin (Humectant that attracts and retains moisture), Ethyl Ascorbic Acid (Stable vitamin C derivative for brightening and antioxidant protection), Sea Buckthorn Water (Antioxidant and skin conditioning hydrosol). 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 5,800+ K-beauty products to provide data-backed recommendations.
Pink Guava Glutathione Blemish Serum Refill Set is a Korean serum by Begins by JUNGSAEMMOOL. 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.
For oily skin, the key factors in evaluating Pink Guava Glutathione Blemish Serum Refill Set are comedogenic ingredient ratings, oil content, and finish type. This serum contains 13 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.
Pink Guava Glutathione Blemish Serum Refill Set by Begins by JUNGSAEMMOOL starts from $20.80 USD for [Original Product] Pink Guava Glutathione Blemish Serum 30ml / [Refill] Pink Guava Glutathione Blemish Serum 30ml. Seoul Sister Pro members compare prices across 6+ authorized retailers including Olive Young, Soko Glam, and YesStyle to find the best deal, with automatic price drop alerts.
Pink Guava Glutathione Blemish Serum Refill Set by Begins by JUNGSAEMMOOL is available from authorized K-beauty retailers including Olive Young Global, Soko Glam, YesStyle, and Amazon. Prices start from $20.80 USD. Seoul Sister verifies retailer authenticity and tracks counterfeit indicators to help you buy genuine Korean skincare products.