numbuzin No.5 Serum | Tranexamic Acid 4%, Niacinamide 5%, Glutathione, Vitamin C | Vitamin Concentrated Serum | Hyperpigmentation| Suitable for Sensitive Skin, Korean Skincare | 1.01 fl. oz.

After viewing some information and reviews on this serum, I decided to give it a go. This serum has by far exceeded my expectations in words I cannot describe. I’ve never used anything that has given me such visible results in this short time and I am mad at myself for not taking before and after pictures. I was told that there was nothing that really helped hyperpigmentation, but they were wrong! This serum has visibly reduced my hyperpigmentation in a week and a half, so much that even my preoccupied football fanatic husband said my face didn’t look patchy and brown anymore. (Gee, that’s nice). Of course your mileage may vary, but this has been a completely, unexpected, undeniable change that I would admonish anyone who didn’t at least try this for themselves. Again, you may not get the same results as I did; but I think it’s worth a try

This serum has become a favorite in my morning routine. I’ve been using it with a vitamin C toner and I’ve noticed visible improvement in my skin’s texture and brightness. It layers well with other products and absorbs quickly without any stickiness. The formula is gentle enough for my sensitive skin but still feels effective—especially for fading dark spots and evening out skin tone. A must-have, especially during the summer when hyperpigmentation becomes more noticeable.

Partnered with the toner #5 this is the only Vit C that is having any positive effect on my melasma in quite some time. Very pleased with this product. Just ordered another bottle and I'm not even half way through the current bottle. Glutathione seems to be the magic ingredient for me. Love it

This serum feels lightweight and absorbs quickly, and I’ve noticed my complexion looking more even after a few weeks. It’s gentle on my sensitive skin, but a consistent use over a month is needed to see improvement.

This is an amazing serum that was highlighted by two great dermatologistsyou can still use it with your C serum and it does not conflict or changes the efficacy of the c serumYou can also use it after retinol in the eveningsI have not been able to find another serum at this price point as good as this

Great ingredients and feels Amazing on the skin. I have sun spots and have used this for almost 4 weeks every morning, before my sunscreen and I have seen a slight fade, great thing this serum is not too oily like other Vitamin C serums (I tried Timeless 20% and HATED it, so oily) and I definitely will be repurchasing this one.

Excelente tenia el rostro con muchas manchas de acné y por otras causas y de verdad mi rostro a dado un cambio que estoy maravillado. Sin duda alguna de los mejores serums que he probado

I'm not sure if this serum hides dark spots, but it is supposed to. I haven't used it everyday maybe that's why, but it is affordable. There's no scent and it's not sticky.