I was referred to Cosmedix, specifically Serum 16, by my beautician in Australia. Since then I've used it every night for the past 3 years. I love this product... it keeps my skin hydrated and evens my skin tone. I have acne scarring so it helps tone that down. personally I like using it with Cosmedix Clarity.

Serum 16 by CosMedix makes my skin stays hydrated throughout the night. Will buy again.

I had been using another retinol product and had not noticed a huge difference over time, so I decided to switch it up and give something else a try. While I have not used this long enough yet to see huge results, it already has given me a positive impression. I have used it at night, and when I wake up in the morning, I do not notice any irritation or dryness (which is a good surprise for a retinol product!). My skin generally looks a bit clearer so far. It goes on nicely and mixes well with other products in my nighttime routine.

I have rosacea and sensitive skin, so this product works great! It has a lovely smell and is not drying at all! When I wake up in the morning, my skin is glowing, not dry like I've experienced from other retinol products. It lasts a long time as well. The only downside is the price, but I feel that you get what you pay for in this case. Would definitely buy again!

The description doesn't lie... this is the perfect retinol starter product. I have tried a few products over the years, and always send them right to the trash can after my face breaks out in the most painful / blotchy rash. I'm a week in with this, using it nightly, and it is so gentle and lovely! Time will tell for results... but for now, loving the way it makes my face feel.

Super light serum, great for oil skin during summer time! Great ingredients and obvious results

I have tried retinol products a few times before, but always quit using them due to skin dryness, irritation, and redness. This serum has been great! I have been using it ever-other- night for a couple of weeks and there has been no redness or irritation. My skin seems brighter and more even toned. I will continue to use.

I love this serum! It was recommended to me after a facial at a spa and I was skeptical and so chose to order it from DermStore where I could return it if it didn't work out. Thankfully, it has worked out and been absolutely amazing! I have super sensitive combination skin that tends to get contact dermatitis from acids and oily skin products, but dry skin products clog my pores and break me out. This serum is perfectly balanced for me and hydrates my skin while clearing out my pores without irritation. If you have very small pores like me and popular acids only cause surface irritation without helping your blackheads and bumpy texture, this will be perfect for you.