No.5 Vitamin-Niacinamide Concentrated Serum

Name: Numbuzin No.5 Vitamin-Niacinamide Concentrated Serum
Brand: Numbuzin

serummid-range

Overall score7.9

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✶ Hero ingredients

#2Niacinamide

Vitamin B3 that brightens and strengthens skin barrier

#3Glycerin

One of the most effective humectants

#4Butylene Glycol

Lightweight humectant and solvent

Score breakdown

Overall

7.9

Hydration Efficacy6.2

Irritation Risk9.5

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Active Ingredient Strength7.3

Ingredient Transparency7.8

Formulation Safety9.0

Estimated — based on ingredient analysis. Scores refine as user reviews are added.

What makes Numbuzin No.5 Vitamin-Niacinamide Concentrated Serum stand out

Numbuzin No.5 Vitamin-Niacinamide Concentrated Serum is a solid serum with an overall score of 7.9/9.8. Positioned in the mid-range bracket, it delivers a well-rounded formulation that balances efficacy with gentleness. The formula leads with Niacinamide, Glycerin, Butylene Glycol — ingredients that actively target skin concerns.

It performs well on low irritation risk (9.5) and active strength (7.3).

Is this right for you?

Great for

✓Sensitive skin — low irritation risk with a gentle formulation
✓Anyone wanting visible results — solid active ingredient lineup
✓Safety-conscious shoppers — clean formulation with minimal flags

Key ingredients

✶
Niacinamide
Works on your skin — #2 in the INCI list
✶
Glycerin
Draws in moisture — #3 in the INCI list
✶
Butylene Glycol
Draws in moisture — #4 in the INCI list
✶
Tranexamic Acid
Works on your skin — #6 in the INCI list
✶
Ascorbyl Glucoside
Works on your skin — #8 in the INCI list

Full ingredient list

16 ingredients — listed in INCI order (highest concentration first)

#1Water #2Niacinamide #3Glycerin #4Butylene Glycol #52-Hexanediol #6Tranexamic Acid #7Glutathione #8Ascorbyl Glucoside #9Alpha-Arbutin #10Panthenol #11Allantoin #12Sodium Hyaluronate #13Adenosine #14Carbomer #15Arginine #16Ethylhexylglycerin

Compare with similar products

Ingredient breakdown

Works on your skin6
Other ingredient4
Draws in moisture4
Holds the formula together1
Keeps the product fresh1

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