This article contains affiliate links. We may earn a small commission on items purchased through this article, though this does not affect our editorial judgement. An often overlooked part of a daily skincare routine, serums can provide an extra barrier to protect the skin against, among other things, the drying effects of the cold weather. Whether you’re looking for an anti ageing product, to reduce blemishes or simply inject a surge of moisture, there’s a serum out there that’ll work wonders. Here we take a look at a range of face serums, all available to buy online, to try this winter. A quick note for the uninitiated: serums are thinner and more viscous than creams. Apply to a freshly cleaned face, before you apply moisturiser on top, both morning and night. Serums will serve to treat the skin, while the moisturiser will cosset and further hydrate.