After your skin gets used to it, it will become "once in two days apply before going to sleep" routine. You will see the difference in two weeks.

This product is so great! I hadn’t heard of this brand, but I’m so glad I found it. It really helps with the appearance of fine lines and wrinkles. I’m excited to incorporate it into my daily routine.

It's a good serum. Has the smell the retinol serums have which I find a little strong but not to bad. I use it at night. Also you need to keep it in fridge once opened.

If you want a retinol serum that is effective and affordable this is a great choice.

I use this TO retinol in squalane for the neck and chin area, since I can't use tretinon on the neck. The texture of the serum is an oil base, it nourishes the skin nicely - I don't need a night cream after it, A very gentle retinol serum. I will buy it again