No.5 Serum | Glutathione Vitamin Concentrated Serum | Glutathione, Vitamin C, Tranexamic Acid | Hyperpigmentation, Acne Scars | Suitable for Sensitive Skin, Korean Skincare | 1.01 fl. oz.

I love most of the products from Numbuzin, they are affordable yet effective. I have been using multiple products from them and loving it.

Repeat customer very happy with the product

10/10 very useful

Such a great product. My skin is spot less and even toned. Started working after 1 week of use. Would definitely recommend for hyper pigmentation and uneven skin tone.

Fair

Today is just my 4th night applying this serum on my face and I think its good.No rashes,no redness and I think it’s suitable to my skin the product is original

good

I have just used it for a week and find it quite sticky specially after applying the sunscreen or thé moisturizer, too soon to comment if it’s working , will continue till the product finishes

na

siero stupendo, lo ricomprerò di nuovo. la mia pelle è più luminosa e presenta meno macchie. sto provando il siero ogni giorno e funziona!!!!

It doesn't have any effect. It's just a waste of money. Also, the customer service is terrible. Although they promised a return, as advertised, the seller refused to process the return. Overall rating is 0, if that were an option. I do not recommend it. You can buy much better products from well-known brands for the same price.

Al aplicarlo de noche , al día siguiente se siente muy bien la piel, si me gustó , y n cuánto a las manchas aún no veo cambios notables pero siento que con el uso constante si puede funcionar.

What I LIKE about it: 1) PACKED WITH VITAMINS — The Numbuzin #5 serum is loaded with vitamins, especially vitamin C, and has really helped brighten up my complexion. After using it for a few weeks, my skin looks noticeably more radiant and even-toned. It’s perfect if you want that natural glow without makeup! 2) SO LIGHTWEIGHT AND ABSORBS QUICKLY — The texture is smooth and lightweight, so it doesn’t feel heavy or sticky. It absorbs in seconds, leaving my skin soft and prepped for other products. Great for layering with other serums or creams without any pilling. 3) GENTLE ENOUGH FOR DAILY USE — I was worried it might be too strong, but it’s actually quite gentle. My skin hasn’t had any irritation, even with daily use, and it feels more hydrated and healthy over time. DISLIKE: The only downside is the bottle size—I go through it fairly quickly, and a larger option would be amazing! I hope you found this review HELPFUL. Makes reviewing worthwhile. Thank you.