# Numbuzin - No.6 Deep Sleep Mask Serum **Brand:** Numbuzin **Category:** Soins du visage **Code (GTIN/SKU):** 8809652580210 **Canonical URL:** https://openreviews.io/en/reviews/numbuzin/numbuzin-no-6-deep-sleep-mask-serum-8809652580210 ## Rating: 4.8/5 ★★★★★ — 47 reviews analyzed _Confidence: high_ ## At a glance Numbuzin - No.6 Deep Sleep Mask Serum reviews: 4.8/5 based on 47 analyzed reviews from 2 sites, updated November 2, 2026. Praised: feel / usage and comfort. Criticized: unsuitable for combination skin. - Feel / Usage: 7 reviews mention it, mostly positively - Comfort: 4 reviews mention it, mostly positively - Price: 3 reviews mention it, mostly positively 47 reviews analyzed: 42 published on OpenReviews and 5 on other sites. Other sites: 1 source, 5 reviews, average rating 5.0/5. How we count reviews: https://openreviews.io/en/methodology ## AI summary This hydrating night serum is particularly appreciated for its lightweight, non-sticky texture that absorbs quickly. It provides intense and immediate hydration, leaving the skin exceptionally soft, plumped, and luminous upon waking, much like the effects of a sheet mask. However, due to its richness, this treatment is ideal for dry and sensitive skin, but it can cause blemishes or breakouts on combination to oily skin types. ## Strengths - Feel / Usage (17%) - Comfort (10%) - Price (7%) - Appearance (7%) - Quality (5%) ## Weaknesses - **Unsuitable for combination skin** — Its very rich formula can clog pores and cause breakouts on oily areas. ## Frequently asked questions - Is it suitable for oily skin? - Does it leave a sticky finish? - Can it replace a moisturizer? - How quickly do you see results? ## Top reviews ### 4.0/5 · Marie jo · September 26, 2025 LE SERUM ME CONVIENT ASSOCIE A LA GELEE, JE RACHETE ### 5.0/5 · Mona · September 21, 2025 very good product. My husband loves it. ### 5.0/5 · Hester · September 13, 2025 Quick Absorbing Hydration. This serum is a light oil and absorbs fast into the skin. I use it after toning and let it dry before applying a light moisturizer on top of it before going to bed. My skin is baby soft in the morning. ### 5.0/5 · Aleks · August 12, 2025 This is my fav!! The results are instant 7 days and your skin its like new.Really good product.Getting yo half of the bottle so soon I need to replenish x Thank you!! ### 5.0/5 · Eyitayo Dorcas · August 6, 2025 Excellent hydration and skin softness ### 5.0/5 · Janice Kern · July 25, 2025 This is a new Korean skin care brand for me and so far I have ordered three products. This is a winner. I feel it makes my skin look immediately better. It pumps my skin and gives it a glow. I'm still in the first month of using it, but so far I'm loving it ### 5.0/5 · Katie · June 22, 2025 NOT your average hyaluronic acid. This is a well-formulated deep hydration serum. Non comedogenic and very effective as part of my skin care routine.  I order I on repeat! Why did you pick this product vs others?:Hydration without heaviness. ### 5.0/5 · Guylaine Nadeau · May 31, 2025 Vraiment très bien je l’aime beaucoup, pénètre bien dans la peau. Je sais on déteste quand les autres nous le font mais comme ça fait qu’une semaine que je le prends je ne peut vous dire si il y a des résultats. Au moins je l’ai essayé c’est pas comme ceux qui ne font qu’ouvrir le paquet. ### 4.0/5 · Mackenzie · May 28, 2025 Not much of a scent and no sticky feeling. Adds intense hydration to the skin and great to put on before bed. High quality Korean brand. ### 5.0/5 · Linda · April 17, 2025 I use pretty harsh actives like tret and glycolic acids on my active nights so I desperately needed a hydrating serum for my recovery/hydration nights and this does the job, a pretty simple serum that leaves my skin feeling hydrated and smooth. --- _Source: OpenReviews — https://openreviews.io/en/reviews/numbuzin/numbuzin-no-6-deep-sleep-mask-serum-8809652580210_