Protect the one that outperforms everything.

What this step does

If you keep one step from an entire routine, keep this one. UV drives the majority of visible ageing and it is the single biggest reason pigmentation returns after treatment — which makes sunscreen the active ingredient in any pigmentation plan rather than an afterthought to it. It is needed in Ireland, through cloud, and in winter. The best sunscreen is genuinely the one whose texture you do not mind, because the one you skip protects nothing.