I've been reticent to try retinol for years because I have sensitive skin. After doing some research, I decided to try La Roche-Posay because I trust the brand. After the first use, my skin did not get irritated! I've been using it weekly for over two months and the difference is remarkable. I've noticed my fine lines are diminishing and my pores look smaller. My skin feels more firm and taut and the tone is more even. I always had issues with my nose looking red and irritated; however, the retinol has helped even out the tone and exfoliate the pores. My biggest problem area was deepening lines on the outer corner of my eyes from being a side sleeper. Retinol helps minimize the damage! I apply a layer of retinol followed by moisturizer before I go to sleep and the lines aren't as bad/don't last for hours after I wake up. It keeps the skin dewy and more resilient. If you have sensitive skin, this is a great alternative to strong, prescription strength retinoids.