One of the best products I have tried. It absorbs immediately and it seems to do what it promises.

I am 46 with combination skin and fine expression lines. I have been using it for over a month and my impression is the same as the first day: it absorbs immediately without leaving any greasiness, moisturizes enough, but I'm not sure if it does anything more. I use it in combination with a second serum and face cream. Although my skin responds well to it, I think that on its own it doesn't meet its needs.

I bought it on sale for hydration and wrinkles. When you apply a little, it doesn't stick, but if you apply more, it causes irritation. It also causes pimples, just like the creams that my mother had experienced. Money wasted. Do not buy it.

It is very nice, I also use it as a primer before makeup, really especially for its cost, it is awesome, I don't think there is anything else of the same quality at the same price. The award-winning Bioten has once again made us proud!

I regret buying it because it is not vegan or cruelty-free.
I believe it would be good if they released products without animal ingredients and without animal testing.
Until then, I will not purchase anything from this company. (I gave it away)

The bioten collagen serum is a lightweight product that absorbs easily and has a very pleasant scent! It does not create greasiness and noticeably moisturizes! On the downside, the price has increased significantly lately! I don't know if I will buy it again due to the cost!

I bought bioten facial care products for the first time. Until now, for 1 year, I was using Korre wild rose day and night cream and wild rose oil. This time, I bought Hyaluronic Acid Day-Night Cream, Skin Defense Eye Cream, Hyaluronic Serum, and Collagen Serum. First application today. The products are quickly absorbed and leave a refreshing feeling with a nice scent. After a month of intensive use, I will come back with results. By the way, I am 33 years old with combination skin, not sensitive, without acne problems, dryness, and without significant fine line issues. I should add that I wash my face every morning and night with bioten quince gel, use bioten scrub twice a week, and finally, before my skincare routine, I apply rosewater to my face.

Because I really like the mask from the series, I decided to try the serum as well. I didn't particularly like it, it bothers me that it has such a strong scent, it seems somewhat "synthetic" to me.
It leaves a relatively sticky feeling that goes away after a while, but if you want to apply cream on top, you have to wait quite a bit.
As for results, I can't say because it hasn't been many days, but I don't think I will continue to use it.

Really a perfect useless product... not worth the wasted money. I bought 1 package for testing and finished it in 1 month with daily use, no difference... absolute nothing on the skin. A collagen serum should have a specific percentage of collagen inside, which of course very few companies mention on their packaging. A collagen serum should make you feel the tightening it does... and the hydration, this did absolutely nothing. I have also tried other bioten cosmetic products and shower gels, I didn't like them either... it is the last product I buy, I have clean combination skin without pimples and only expression wrinkles on the forehead and laugh lines. Wasted money once again. Will I buy it again? Of course not, there are other companies with a little more money that really do the job... and deliver what they promise and mention the percentage of collagen it contains

I threw away this product after the third use. I didn't feel like it was offering me anything, it was like putting water with a very strong and unpleasant scent that gives you a headache.

It did not irritate my skin nor moisturize it as much, and it did not clog my pores. However, the scent is bad because it smells somewhat like baby wipes with flowers. It is heavily scented if you look closely at the ingredients.

Finally, there are some low-cost products that do a great job, like this one! I have bought it several times and in combination with the face cream (day or night), it has very good results!

I bought the first bottle hesitantly. And from the very first use, it pleasantly surprised me. Lightweight, with a nice scent, and easily absorbed. I have very oily skin and for me, it was enough without using moisturizer on top. In a month, I saw improvement in the wrinkles I had on my forehead. I bought a second one, which I also finished, and I can say that it does a very good job, even though I wasn't completely consistent in using it.

The best thing I have tried for this money! I have very oily skin with imperfections and pores, and I have seen a huge improvement in texture and fine lines of expression! Wonderful scent, absorbs instantly and moisturizes a lot.

I bought it when it was on sale, the first impression is good, it has a very nice scent, I really liked the packaging with the applicator. It absorbs immediately, it is lightweight, it does not leave any greasiness on my combination skin. I felt immediate hydration and revitalization, but I will come back once I finish it all.

--- update
Almost at the end, no difference from the first impression, just a little improvement in the collagen aspect, the facial contour is slightly better

My skin has regained its glow. Light and refreshing, it renews the skin quite well. As for anti-aging, I have been using it for 3 weeks and I can't say I have seen results yet. However, for my age (34), it's fine.

Anti-aging, I don't believe it does, but it provides extra hydration to the face and helps it maintain its moisture. However, it is important to 'lock it in' with a moisturizer on top because it contains hyaluronic acid which evaporates if you don't lock it in with a moisturizing cream!! Its texture is like water.

Lightweight, easily absorbed, leaves no greasiness, but I don't feel like it moisturizes enough on its own, so I almost always apply cream on top. I'm not sure if I would buy it again because I'm not sure if it actually does anything for my skin, but it doesn't bother me even though I have very sensitive skin, and creams/makeup easily glide on top of it.

It is absorbed immediately, leaving the skin hydrated without feeling greasy (I have combination skin), ideal as a makeup base. I have been buying it continuously for 1 1/2 years. I often apply it at night, with or without moisturizer. And it really does the job. I noticed it from the first days I started using it. Perfect!

Awesome product, absorbs quickly and leaves the skin hydrated but not greasy. Even though I have oily skin, it doesn't leave a feeling of greasiness. No product from bioten has disappointed me.

Good product, refreshing, gives a light shine, easily absorbed by the skin although in my case, which is normal-dry, after absorption, I feel my skin slightly tight, so I immediately use moisturizer. With all these powerful anti-aging peptides it claims to have, plus collagen, plus hyaluronic acid, plus natural almond oil, I expected much more results. I have been using it for 2 weeks now, morning and evening, and besides a slightly rejuvenated skin in terms of wrinkle reduction, I didn't see anything else. Maybe it needs more time and usage. Only if I find it in the market with a 40-50% discount, I would repurchase it as a simple serum at its regular price, no... I would try something else.

I bought it because of the good reviews. It smells amazing! It spreads super smoothly and absorbs leaving a nice feeling. Then I apply moisturizer! It also refreshes me a lot. I will come back to the review after a month of use.

1 and a half years later: I buy it continuously. I enjoy it very much on my skin!

I don't know how it works since the collagen is not absorbed by the skin, but if I apply it before the moisturizer, the skin looks different the next day compared to just using a moisturizer... I would buy it again because it is definitely value for money!!

Very nice product!!! I use it daily and I have noticed a difference in my skin.. Definitely more hydrated and radiant. I am 24 years old so I don't know if it helps with anything for older ages. If you want an affordable serum to refresh and moisturize you before your moisturizer, it is just what you need.

Wonderful!!!!!!!! Simply amazing! I bought it one day and the next day I went and bought it again because it was on sale and I didn't want to miss it... Wonderful

Perfect.. Light texture and matte finish. Personally, I feel that it moisturizes my skin enough.. However, I don't skip my moisturizer afterwards, which sits perfectly on top of this product! I will definitely buy it again! Overall, I have a great love for bioten️

It is lightweight, but it definitely needs moisturizing afterwards. I will not buy it again because I have the impression that it doesn't offer anything (also, I'm too lazy to apply many products unless they have undeniable results). Pleasant, but indifferent.

I am on the 3rd application, it is very lightweight and absorbs very quickly. I put it on my hand and before I manage to put it on my face, I feel it being absorbed. I think it does something, the only thing that bothers me is the scent, it smells like soap.

I have been using it for a long time. I have seen improvement in my skin. I would buy it again and again.

It smells very nice but not strongly and it absorbs easily. The good thing is that it doesn't leave the skin greasy afterwards and the moisturizer sits very well on it. I don't know if products like this actually work, but for its price, it's worth trying it out.