A go-to range for anyone with sensitive skin, it was only a matter of time before French pharmacy brand, La Roche Posay, came up with a gentle retinol solution. Targeting fine lines and wrinkles, the La Roche Posay Retinol B3 Serum (£38) combines 0.3 percent retinol with vitamin B3 and glycerin, the latter of which helps keep skin hydrated, restores the skin barrier, and reduces skin irritation and dryness (an all-too common side effect when using retinol). Use it in the evening after cleansing and be sure to use a high SPF the following morning.