Numbuzin No.5 Vitamin Spotlight Sheet Mas

Product Overview

• This is a sheet mask from Korean brand Numbuzin, part of their “No.5” vitamin/concentrated series. 

• Size: 27 ml (sometimes listed as 27 g or “1 EA / 27 ml”).

• Key positioning: Brightening, tone‐evening, targetting dark spots / red and yellow tone issues.

Key Benefits

• Targets dull skin, uneven skin tone, red/ yellow/ dark spots through a blend of powerful brightening ingredients. 

• Delivers moisture and hydrating ingredients alongside brightening actives, helping maintain skin barrier and comfort. 

• Suitable for “all skin types”, including sensitive and acne‐prone skin (per listing) thanks to soothing/hydrating additions. 

Key Ingredients & Their Roles

Here are major actives and what they do:

• Niacinamide (50,000 ppm in some listings) — helps with tone‐evening, reducing pigmentation, improving barrier. Glutathione (liposomal form, e.g., 500 ppm or “98% pure liposomal glutathione” in some listings) — antioxidant, helps with brightening and reducing melanin formation. 

• Vitamin C derivatives / Ascorbic Acid / Sodium Ascorbyl Phosphate — known brighteners, help fade dark spots, boost radiance. 

• Arbutin & Bisabolol — supports brightening (arbutin) and soothing/anti‐inflammatory (bisabolol).

• Hyaluronic Acid, Allantoin, Ceramide NP — hydrating and skin barrier supportive ingredients to ensure the mask doesn’t overly dry or irritate.

How to Use

1. After cleansing (and toning if you use one), open the sheet mask and apply it to your face, aligning with facial contours. 

2. Leave on for about 10-20 minutes (some listings say up to 20 min). 

3. Remove the mask and gently pat any remaining essence into the skin until fully absorbed. No rinsing needed.

4. Follow with your usual serum/moisturizer if desired.

Frequency: Typically 1-2 times per week for maintenance. For targeted brightening, some might use more often (but check skin reaction).

Who It’s Good For / Use Cases

• People with dull skin looking for a quick radiance boost.

• Individuals dealing with uneven skin tone, sun spots, post‐inflammatory hyperpigmentation (PIH) or redness/yellow tone.

• Anyone who wants a sheet mask with both brightening & hydrating properties.

• Suitable for sensitive/combination skin as per the brand (though patch test always recommended).

Things to Watch / Potential Trade-Offs

• Brightening ingredients (Vitamin C, niacinamide, etc) can sometimes cause tingling or mild irritation especially if skin barrier is compromised. Patch testing advisable.

• Results for dark spots/hyperpigmentation will require consistency—one mask won’t fade long‐standing marks overnight.

• While it hydrates, if your skin is very dry or flaky, you may still need a richer moisturizer after.

• Always check authenticity, packaging, and expiry especially when buying online.

• Avoid layering too many strong actives simultaneously (e.g., multiple vitamin C treatments) without monitoring how your skin handles it.

Summary

The Numbuzin No.5 Vitamin Spotlight Sheet Mask is a well-formulated sheet mask with strong brightening credentials and supportive hydrating/soothing ingredients. It’s a good option if you aim to improve skin radiance, even out tone, and support hydration in one go. As with all skincare, it works best when used consistently and as part of a broader, appropriate regimen.