No.3 Blue Bio-Retinol Pore Refining Serum, 1.01 fl oz (30 ml)

I took this new product from Numbuzin and was completely delighted! The formula with bio-retinol and niacinamide acts very gently, does not irritate or overdry the skin at all, unlike regular retinol. The texture is light, absorbs quickly and does not leave a sticky feeling. After a few weeks of daily use, I noticed that the pores in the T-zone had significantly narrowed, the skin texture had evened out, and the complexion had become fresher and more radiant. The serum perfectly cleanses and renews the skin. I definitely recommend it!

Great product. Easy to use. No scent. Packaging is convenient.

It has good scent, the quality and size and packaging is great but strong i don’t recommend using it a lot first if you have sensitive skin, you have to be gentle with it, you have to learn the frequency of your skin, it’s good for all ages, and has very good benefits and the composition is good

A good, lightweight serum that absorbs quickly into the skin and helps cleanse pores.

I haven't used blue retinol yet, but I was waiting for it to appear on iHerb because it's popular in South Korea. I just started using it; we'll see how it evens out my skin texture. It's suitable for sensitive skin.

The serum smells good and is effective. The smell is not very pronounced. The packaging is convenient. The size is quite long-lasting, economical consumption. It is fashionable to apply during the day. The result of use in a month: the pores narrowed, the rashes decreased, the skin tightened and became more elastic.

I really liked the serum. Apply only to dry skin, and preferably in the evening because it contains retinol. It noticeably tightens pores.

I bought this product on ChatGPT's recommendation. I use it several times a week in the evenings. It's too early to draw conclusions—I haven't seen any noticeable results yet, but I'm continuing to use it and hope the results will become apparent over time.

It's fragrance-free and easily absorbed, but it still leaves a sticky feeling on the face.

There is practically no smell, I really liked the serum, it smoothes the skin and makes it nourished and very well-groomed