numbuzin No.5 Serum | Vitamin Concentrated Serum | Glutathione, Vitamin C | Hyperpigmentation, Acne Scars | Suitable for Sensitive Skin, Korean Skincare | 30 ml

i have used a number of vitamin c serums and i just havent been able to get on with any so far. L-ascorbic acid can be very aggravating to many people, causing sensitive skin that can flake and peel before getting used to the active ingredients. the way numbuzin has formulated this No.5 serum is incredible. It still has a slight hot dog water smell (if you know you know!) but its very mild, but it feels amazing on the skin. its left looking glowy but not artificially so, and i have seen a definite improvement to my skins texture and radiance. Best of all, there has been absolutely zero irritation. Amazing product and one that i will buy forever i expect!

Get this, absolutely worked to fade my PIH, saw reduction in literally 21+ weeks. No irritation, no breakouts....Will definitely repurchase.

I notice a small difference, but nothing major. Better than using Vit C which does break me out. No skin irritation with this serum though.

This has cleared my hyperpigmentation so well. I use this with other products like the numbuzin 5 toner and cerave moisturiser so I can’t give this all the credit but it definitely helped

In my opinion this is the best Vitamin C serum for sensitive skin! It’s so soothing and doesn’t irritate your skin at all.

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.

brilliant product to reduce dark pigmentation , not sticky, can be layered wit other skin care products. One if the best

So, I bought this product 2 months ago. I tried it and found no change whatsoever in my skin. That's not to say all products will work for everyone, but I recently found out that this product does not contain Tranexamic Acid, which was a major reason for me to buy this in the first place.The fact this is advertised as containing this ingredient is majorly misleading. This isn't the first vitamin c serum I've used and even using it for just that, the results have been mega meh. Really annoyed about the false advertising with this product. Highly recommend you avoid!