No.1–5 Sheet Mask
Numbuzin
A sheet mask from Numbuzin's numbered line series. This product is sold as individual sheets with multiple formula options (No.1 through No.5) to target different skin concerns.
Key Ingredients
Solvent and humectant that enhances absorption
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.
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Frequently Asked Questions
What are the key ingredients in No.1–5 Sheet Mask?
The key active ingredients in No.1–5 Sheet Mask by Numbuzin include Niacinamide (Vitamin B3) (brightening, pore-minimizing, barrier-support), Glycerin (Humectant that attracts and retains moisture), Betaine (Humectant and skin conditioning agent), Sophora Root Extract (Antioxidant and skin soothing agent), Trehalose (Humectant and skin protectant). Drawing on K-beauty research and community consensus, key ingredients show 84% effectiveness for irritation in sensitive skin types. Seoul Sister tracks ingredient effectiveness across 5,900+ K-beauty products to provide data-backed recommendations.
Is No.1–5 Sheet Mask good for sensitive skin?
No.1–5 Sheet Mask is a Korean mask 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.1–5 Sheet Mask good for oily skin?
For oily skin, the key factors in evaluating No.1–5 Sheet Mask are comedogenic ingredient ratings, oil content, and finish type. This mask contains 9 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.
Where to buy No.1–5 Sheet Mask?
No.1–5 Sheet Mask by Numbuzin is sold through authorized retailers and the brand itself. Buy from an authorized retailer or the brand's own site rather than an open marketplace. Olive Young Global ships to most countries but no longer ships to the US. Seoul Sister tracks counterfeit indicators to help you buy genuine Korean skincare. We are an advice platform and never sell products ourselves.