O₂ Niacinamide Multitasking Treatment Serum with Peptides and Hyaluronic Acid for Firming, Dark Spots, Pores and Hydration

I have red skin all around my mouth, chin cheeks this eczema of every time I eat spicy food dairy product, or use some heavy moisturizer cream or use harsh exfoliating product on my face, so my skin screaming needed something to calm me down. This product is absolutely amazing. Make my skin calm and all the red rashes go away. It is just like magic in the bottle that is all the skin imperfection. I usually try to cover this red patches, I don’t like it, but with this serum just really expensive and luxury give you that vibe you wanna just have all the lying all the serums and free to make sure your skin perfect and flawless I highly recommend it. It is absolutely amazing. It’s really game changer. I highly recommend it. Absolutely make my skin. My husband noticed that.

I've tried countless other serums and skin products over the years from brands like La Mer, Dr. Barbara Sturm, etc., but, with this one, I finally notice a big, positive difference in my skin. I use one pump at night, and my skin is more radiant and plump (without being greasy) and just overall looks healthier. Marks and imperfections also fade quickly with this serum. The ingredient list is perfect for my skin concerns and preferences, so I had to give it a try, and I'm so glad I did. It will probably be expensive to keep using it long-term, but, for me, it is worth it. I hope this new brand succeeds and keeps making this serum!

It’s a good serum- it’s hydrating and layers well. However using twice a day, morning and night the 1 oz bottle was finished within a month. At this price- not something I can afford to replace monthly.

This serum feel very light on the skin, not greasy or heavy at all, the skin doesn’t feel saturated after using it, actually is the opposite.
The self filler dropper works great, very easy to dispense to your fingertips. The scent is out of this world, smells so good my husband asked me if I got a new perfume and that it smelled great.
I will for sure recommend this product is you are ready to pamper your skin.

First thing I loved was the packaging, it came in a beautiful box that seemed like a gift with a bright blue liner,the bottle is the same color blue. All over the box it lists many things this serum promises to achieve. I was a little skeptical that one serum could do all the things it said but I was excited to see. It's a nice lightweight serum, it tingles a little at first, but then it is easily absent the skin. My face definitely felt hydrated and even felt a little bit former.But honestly at the price point of this product ,it would have to be life changing and miraculous for me to incorporate it into my skin care routine and repurchase it and unfortunately I didn't see that kind of result, so it wouldn't be a product I would continue to use. But was excited to learn and try it.I received this as part of a promotion.

I’ve been using this for about three weeks now and the amazing difference has been in my skin is incredible! It leaves my skin so soft and feeling so refreshed. It’s literally like putting oxygen on your skin. I’ve noticed the fine lines and wrinkles disappearing. I’ve got plump us back in my skin. I’ve got Health back in my skin and my skin just glows! I am going to tell all of my friends and family about this product! I will definitely be using all of this up and buying more and continuing to use. I am 54 and it is because of products like this that keeps my skin looking young and healthy and why no one believes my age. You get a huge bottle for your money and a little goes a long way so it will last forever! So happy with this product. What a great creation for young healthy skin!

After testing out this product for several weeks, I feel like I’ve been using it an adequate time to review. The product comes in a luxurious bottle that is pretty and sleek. The product comes out quickly and easily, one pump being the perfect amount for use. It makes my skin feel hydrated upon application. With continued use I do think my skin feels moisturized and plump. Unfortunately, that is the main result I have seen from this product. My skin hasn’t really changed in any other way. For the price point, I expected more from the serum.

I opened the package and it’s completely oxidized. Was expecting a white/clear serum and got a thick yellow serum. Will be going back to the store. Sephora needs to do a better job about shipping old expired products.

As a 40 yr old I’m seeing more fine lines so I wanted something to help minimize my crows feet and forehead lines and this worked so great. I can’t believe how good my skin looks I truely recommend this product enough. My only thing is it’s too expensive and I won’t be getting another bottle because of it. I received this free for review but if you can afford it I say get it because it’s a beautiful product and it works so good.

This broke me out in a terrible skin rash not once but twice and burned part of my skin on the second try. I have sensitive skin and try to only use products with clean ingredients and this was a big fail. There is something in this serum my skin doesn’t like and the first time I broke out it took 2 days of use for the reaction to hit. I let my skin rest and heal and gave it another try to confirm this was the issue and I broke out almost instantly and have a burn spot under my eye. Definitely use with caution if you have sensitive skin.