Number one on that list? Hyaluronic acid. Don’t let the word ‘acid’ put you off though – because unlike traditional acids (like glycolic or lactic), hyaluronic has more of a gel-like texture and doesn’t slough away dead skin cells or have the ability to cause sensitivity or irritation.

Instead, it’s a super hydrator and is often described as a huge glass of water for the skin. Hyaluronic acid is a molecule that can hold up to 1000 times its own weight in water and it helps bind moisture in skin in order to keep it looking plump and hydrated. It’s also something that’s naturally produced by your body (the largest amounts of it are found in skin and eyes, FYI).

That’s why it’s something that should be incorporated into your routine – and if you’re yet to find a formula that you love, listen up because L’Oreal Paris is finally launching its cult Revitalift Filler 1.5% Hyaluronic Acid Serum, £24.99 in the UK.

This cult serum sells every minute in the US – and it’s finally made its way to the UK