Retinol Skin Renewing Daily Micro Dose Serum.

"This contains 0.1 percent retinol, which is one of the strongest ones over the counter—usually they're 0.03, 0.05, and then 0.1, so this is not for sensitive souls. This is for those who are more advanced in the skincare game who are not quite ready for a prescription retinoid but want more from the retinol. Kiehl's is the one I would go for because it's 0.1 percent over the counter, and it has a certain type of peptide called acetyl dipeptide-1 cetyl ester, which is composed of tyrosine and arginine. These are messenger and carrier peptides that are signaling as well as muscle relaxant ones, so it's going to work by basically tricking your skin into thinking there's a slight little injury so that you need to promote more collagen production, and it's also going to work by instantly helping calm your muscles down so that the appearance of your fine lines is less noticeable. Again, is it botox in a bottle? It is not, but it is very interesting."