Whether you should use a serum, a cream, a lotion or all of them can be puzzling. But here’s an easy way to remember: Creams and lotions only moisturise while serums treat.

The latter are essentially super-concentrated anti-ageing moisturisers that help condition, nourish and treat skin from within. They deliver nutrients deep into your skin to reduce the appearance of wrinkles, fine lines and dark spots. The particles are much finer than those of a moisturiser to ensure quick and effective absorption.

So how do you apply it? A little goes a long way. In fact, it only takes a few drops of serum to revitalise and repair your skin at the cellular level. Some serums are meant to work in tandem with a moisturiser, serving as a pre-step rather than a replacement.

Depending on the condition of your skin, the more potent ones with a higher content of antioxidants and nutrients eliminate the need to moisturise altogether – the serum acts as an agent that hydrates from within. For starters, look for serums for men or unisex ones that are suitable for both.

If you’re already on a cleanser-toner-moisturiser routine — that’s good. Try adding these serums to that equation and see greater results because once you start taking good care of your skin, there’s no going back.