No. 5 Vitamin Boosting Essential Toner
Numbuzin
A brightening toner formulated with niacinamide, 3-O-ethyl ascorbic acid (vitamin C derivative), glutathione, and arbutin to even skin tone and boost radiance. Contains peptides and madecassoside for anti-aging and soothing benefits.
Key Ingredients
Solvent and humectant for ingredient delivery
Humectant that attracts and retains moisture
Humectant and preservative booster. Common in K-beauty as a multifunctional alternative to traditional preservatives.
+ 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 Toners
Frequently Asked Questions
What are the key ingredients in No. 5 Vitamin Boosting Essential Toner?
The key active ingredients in No. 5 Vitamin Boosting Essential Toner by Numbuzin include Glycerin (Humectant that attracts and retains moisture), Niacinamide (Vitamin B3) (brightening, pore-minimizing, barrier-support), Polyglycerin-3 (Humectant that binds moisture to skin), Sea Buckthorn Water (Antioxidant and skin conditioning hydrosol), Erythritol (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 No. 5 Vitamin Boosting Essential Toner good for sensitive skin?
No. 5 Vitamin Boosting Essential Toner is a Korean toner by Numbuzin. 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 No. 5 Vitamin Boosting Essential Toner good for oily skin?
For oily skin, the key factors in evaluating No. 5 Vitamin Boosting Essential Toner are comedogenic ingredient ratings, oil content, and finish type. This toner contains 10 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 No. 5 Vitamin Boosting Essential Toner cost?
No. 5 Vitamin Boosting Essential Toner by Numbuzin starts from $22.82 USD for Original Product 200ml + Refill 200ml. 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 No. 5 Vitamin Boosting Essential Toner?
No. 5 Vitamin Boosting Essential Toner by Numbuzin is tracked at Olive Young. Prices start from $22.82 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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