This serum is so silky that the first time I used it, I put it all over my face including my eye area, and as we know for retinoids, you should avoid the eye area . I couldn’t help myself because the serum was so luxurious! Thankfully it didn’t burn my eyes and it’s a gentle retinoid that I could use it 2-3x a week. I can definitively tell it’s made my complexion more bright and clear since using this. I’m in love with it!! I’m 35 years old and my skin is combo. My skin can get dryer during the winter months, but I’m still able to use this serum regularly now without it being over dry and still get results.