The Ordinary Argireline 10%

What is Argeline? It is a six amino acid peptide that was manufactured in a laboratory to appear and operate exactly like peptides found naturally in the body. Peptides are composed of amino acids, which are commonly referred to as the "building blocks" of protein. The two most effective peptides for wrinkle control and collagen production are Argireline™ (wrinkle relaxing) and Matrixyl (collagen building) The peptide called Argireline™ that has been proven to lessen facial tension, relaxing and smoothing out skin. 

From the Deciem website:

Argireline Solution 10% offers an advanced formula targeting dynamic forehead, “eleven eye”, and smile lines in an effective, “non-injective” way. By incorporating a high concentration of Argireline™ , this lightweight serum improves the appearance of facial areas prone to deep-set lines, resulting in smoother, more relaxed skin.

In summary, it is meant for the lines on your forehead and the outer corners of your eyes and smile lines between the nose and mouth area. 

I pair this with The Ordinary Matrixyl 10%+ HA to boost the results.