How to Use a Facial Serum Properly

A few drops, pressed rather than rubbed, on skin that is still a little damp. Most of it comes down to knowing your own skin, and being patient with it.

Patch-test anything new

A dab behind the ear or on the inner arm, left for a day, tells you whether a new product agrees with you before it goes anywhere near your face.

Sunscreen every morning

Daylight ages skin faster than anything else, even through a window and even in winter. A broad-spectrum SPF is the last step of every morning routine.

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