I have been using this product for 3 or 4 years now. Helps with fine lines. It's hard to find a vitamin c product with a pump. Ascorbic Acid (vitamin D) breaks down very fast chemically when exposed to air. So it's important that it comes in a pump. Love this products!
My skin is dehydrated at the moment and it's starting to show some lines. This Concentrate is helping me moisturise my skin very efficiently. I couldn't say that it removed my lines (yet!), but it drastically improve the elasticity and texture of my skin. It looks better and fuller.
I didn't see a difference
I honestly didn't see a difference using this serum. I think I really need stronger acid serums in order to reveal my best skin. I'm not a fan of Kiehl's in general - I think most of their money is spent on marketing, not on the actual products themselves.
Love all Kiehl's products!
Used it before I put on my tinted moisturizer every morning! A great product to use day or night.
Although the directions indicate not to apply around area, I read them a little too late and wound up doing just that. I did notice that after just 2-3 days the difference in the fine lines I get underneath my eyes were less noticeable.