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

It is Good, it visibly improves the look of dark spots, hyperpigmentation, and uneven skin tone. I like it Very Much. I have used it carefully, slowly, and it has helped my skin improve and look good over time. The Skincare item does even out skin tone well and boosts some natural radiance in the skin. It offers some hydration. I like how it enhances skin texture, and effectively diminishes the appearance of some dark spots and discoloration. It is gentle and has Helped and Improved My Skin and Face Very Much. I like how it improves the look of face skin for a fresher, more better good looking appearance. It helps to improve the appearance of skin. It does well with to visibly reduce the look of dark spots and post-acne marks. It is pleasant, decent, satisfying, nice and effective. I would Recommend this Skin item.

Wow, wow, wow. I’ve been using this product 2x per day in combination with 15% Azelaic acid for five days and I already notice a difference in my hyperpigmentation. My skin is literally glowing. I will keep it up in the hopes that my hyperpigmentation fully clears. I’m just shocked that it’s working rapidly for me. I’ve tried so many products over the past three years and nothing has worked like this serum. I have no burning sensation when using it and it’s not greasy, so it’s perfect for my oily skin.

’ve been using the numbuzin No.5 Vitamin Concentrated Serum every single day, and it has truly become a staple in my skincare routine. As someone with acne-prone skin, I’m always cautious with vitamin serums because many can feel heavy or trigger breakouts. This one has worked beautifully for me. The formula is lightweight, absorbs quickly, and doesn’t leave any sticky or greasy feeling. It layers well under moisturizer and sunscreen without pilling. Over time, I’ve noticed gradual improvement in dullness and post-acne marks. My skin looks brighter and more even, but still feels calm and balanced — not irritated or overwhelmed. Pros: * Lightweight and fast-absorbing * Gentle on acne-prone/sensitive skin * Helps with dullness and post-acne marks * Suitable for daily use Cons: *The quantity feels a bit less for the price, especially if you use it daily Overall, it’s a gentle yet effective vitamin serum that works well for everyday use. I just wish it came in a slightly larger bottle!

I’m almost done with the bottle, so I wanted to leave a review. I’ve tried several products from Numbuzin, and while their popular toner didn’t work for me (unfortunately), I decided to give this serum a try despite my initial doubts—and I’m pretty satisfied with it! This serum contains glutathione and vitamin ingredients, which are known for their brightening and skin-tone-evening effects. While it’s not a dramatic change, after using it consistently, I’ve noticed that my complexion looks a bit brighter and more even. It’s not a miracle worker, but it definitely helps to improve skin tone over time. The texture is nice and smooth, but it does feel slightly sticky when first applied. Because of this, I usually wait a little while for it to fully absorb. Once it’s absorbed, the stickiness goes away, and my skin feels soft and moisturized. It’s not a dealbreaker for me, but it’s something to keep in mind if you're in a hurry. Pros: Noticeable brightening and evening of skin tone with consistent use Contains glutathione and vitamin ingredients that are great for skin Good texture, leaves skin soft and moisturized The slight stickiness dissipates after absorption Cons: Slight stickiness that requires a bit of waiting for full absorption No dramatic changes, but subtle improvements with continued use Overall, I’m pleasantly surprised by the Numbuzin No.5+ Vitamin Concentrated Serum. It’s gentle on the skin, and with consistent use, I’ve seen a gradual improvement in my complexion. If you’re looking for a product with glutathione and vitamin ingredients, this is definitely worth trying!

I learned about this product from YouTube. Since I have ultra-sensitive skin and unfortunately suffer from melasma, I was looking for something that would not irritate my skin while helping to protect it. So far, this product has been very good. A great bonus is that it is fragrance-free, which is very important for my sensitive skin. I have only been using it for two weeks, so I have not seen a significant difference yet. However, I believe that with time and consistent use, I will see results. Consistency is key!

Great HG item. It covers my need for a light concentration of vitamin C, along with TXA and glutathione. After researching the ingredients, it was nice to find this combination without a lot of the skin-aggravating ingredients found in many common or viral products. It definitely helps add to my skin glow. I can't say it helps much with hydration, but I use a Centella ampoule afterward, and that seems to work very well with this. I also haven't noticed any scent, and I'm glad there are no added fragrances. Simple and effective, and I’m very happy with the results. I can't remember the last time I had hyperpigmentation stick around for long with this in my routine.

I’ve tried a few Vitamin C products, but I keep reaching for this one. It feels lightweight, doesn’t irritate my skin, and absorbs really well. After using it consistently, I’ve noticed my skin looks brighter and more even. It gives my skin a healthy glow without feeling sticky or greasy. I’m very happy with it and will definitely keep it in my routine.

Es la primera vez que uso por lo que en resultados todavía no puedo decir si cumple sus funciones. El serum no irrita para nada, es fluido y gentil con la piel.

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!!!!

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!

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.