A little goes a long way as is the case with this serum. since starting to use this product I have definitely noticed a slight decrease in fine lines. You can actually see once you have applied the product that it moisturizers as I tend to have slightly drier skin just under my bottom lid and in the corner of my eye. Since applying serum the has been a change in appearance also when applying under eye primer there is no cracking or caking during the day. The upper lid and brow has also shown improvement