No.5 Vitamin Concentrated Serum, Dark Spot Care, Glutathione & Vitamin Serum, Korean Skincare, Tranexamic Acid 4%, Niacinamide 5%, for a Radiant-Looking Glow 1.01 fl oz

This really helps my skin to look brighter and even. Mild on the skin as well

Improvement is visible within few weeks. I was sceptical about buying it. However I guess I made right decision.

So far so good, nice consistency, not too runny or sticky. Cloudy serum which has helped to brighten skin over the last 2 weeks. Works well with microneedling, didn’t cause too much irritation. Also hasn’t broken me out or caused any reactions even though I have acne-prone skin. 4 stars because results are very slow…. Hasn’t brightened as much as I would’ve hoped over the last 2 weeks, will see if using for a month makes a difference.

nice product and delivery on time :)

100% good little drops works wonders

One of those products I wonder if it’s actually doing anything?! No tingling or sensitivity. It’s a nice texture that sinks in. No instructions how much to use though! Seems to layer with everything else I’ve combined it with it in my routine. Just not convinced it’s doing anything other than hydration and skin softness. Recently, since using this product and sunscreen I have got a dark mark on my upper cheek bone and it doesn’t seem to help brighten it. I find it absurd I have to use several bottles to see anything. So I won’t be buying again once this bottles finished. Which won’t be long! I’m still debating whether this is genuine as Numbuzins own guide doesn’t match this bottle. No date on the bottle & the colour of the product is different to their description. Be aware, there is no Azelaic Acid in the formula. I think previously there was an error in the description which included it, this has since been removed. Just not sure this version of ‘Vitamin C’ is affective especially using one bottle. I think it’s slow progress and you would need to use several if you can commit.

I love this so much. I instantly noticed a difference after my first use and in 4 uses my skin feels transformed. I was really struggling with darkness/pigmentation for a while and couldn't figure out why but this restored and brightened my skin I'm so happy. I would probably repurchase forever. LOVE LOVE LOVE

I've been using the numbuzin No.5 Serum for a few weeks now, and I’m really happy with the results. The texture is lightweight, non-sticky, and absorbs quickly into my skin. It feels gentle and didn’t cause any irritation, which is great because I have sensitive skin. I mainly bought it for dark spots and acne scars, and I’ve noticed my skin tone looking more even and bright. Some of my recent marks have already started to fade. It also gives my skin a healthy glow. Overall, it’s a great serum if you’re looking for something gentle yet effective for brightening and fading spots. I’d definitely recommend it!

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.