Incredible product!

First encountered this product while travelling through Poland and later found it available for purchase on-line in the US.

It's wonderful - does what is advertised without any adverse effects. I have sensitive skin and didn't experience any breakouts or burning from retinol. Skin texture improved after a couple of months of using it.
It goes on thin and absorbs quickly, doesn't leave a greasy residue. Smells wonderful. The price point is also very reasonable for this type of product.