Hyaluronic acid has taken the beauty world by storm the past few months. Beauty junkies and anti-aging aficionados are RAVING about the stuff – it's popping up everywhere we look: in lotions, masks, serums, foundations, even lipsticks. Hyaluronic Acid (HA) is a naturally occurring glycol from the body that acts as lubrication for our skin, hair and eyes. Over half of the body's supply of HA is found in our skin tissues, which keep it plump, soft and supple. But our ability to create Hyaluronic Acid declines as we can get older, meaning we develop dryness, fine lines, wrinkles and sagging. Oh no. Which is where these serums step in: skin laps up the clear liquid gel, you can practically feel it plumping as you use it. No more flaky dry patches; hello glowing skin. We've rounded up 3 of our favourites – apply after cleansing and before moisturising. Trilogy Age Proof Nutrient Plus Firming Serum €29.95 This little beauty contains green tea, licorice and mulberry root which act as skin-brighteners, so it plumps and gives a lift.

Pestle and Mortar Pure Hyaluronic Serum €43.00 (30ml)

If you're not a fan of the oily consistency of many serums, you'll love this gem with a diluted texture that spreads easily over the skin.

REN Radiance Perfecting Serum €40.00 (30ml)

A Vitamin C-based serum that helps even out uneven skin tone, while keeping you perfectly moisturised.