Product profile

numbuzin

No.5+ Glutathione Vitamin Concentrated Serum

1Mentions
1Creators
$26.00Price
Typefacial serum
Finish
Retailersus.numbuzin.com, mynumbuzin.com, purish.com
Key ingredientsGlutathione, Niacinamide, Vitamin C, Tranexamic acid, Alpha-Arbutin, Panthenol, Hyaluronic acid, Shea butter, Bifida ferment lysate, Ceramide NP

Creator evidence

tried and true · mid-range · acne scars, hyperpigmentation, dark spots · oily, combination, sensitive
This one I find is a community favorite.
The texture of this is slightly viscous but it absorbs well and layers beautifully under my moisturizer.▶ 5:11–5:20
It's known as a brightening cocktail because it's loaded with ingredients that target both PIE and PIH.▶ 5:20–5:33
I find that this serum can give you a glow up over two to three weeks of use, especially improving overall clarity and the tone of your skin.▶ 5:47–5:55
This one can cause minor purging if your skin is not used to multiple brighteners, especially if your skin can't handle niacinamide and vitamin C derivatives together.▶ 5:55–6:07
I think that this is great for people who have both red and brown marks and want an allrounder serum.▶ 6:11–6:19
The only downside that I find with this serum is that it's not ideal if your skin is extremely sensitive or currently breaking out badly.▶ 6:19–6:28
Source: Best serums for fading acne spots · Nov 2025