Retinol is one of the most buzzed about anti-aging ingredients in skincare, included in a bamboozling array of products. Rachel Marie Walsh explains why, and how, you should make it part of your regime.

Retinol is one of the most buzzed about anti-aging ingredients in skincare, included in a bamboozling array of products. Rachel Marie Walsh explains why, and how, you should make it part of your regime.