The amount of hyaluronic acid in our bodies reduces as we age, which can lead to visible signs of ageing like wrinkles and age spots. As well as providing hydration, hyaluronic acid also has antibacterial and antioxidant properties, which can help keep your skin looking and feeling its best all year round. Aside from its benefits for your skin, hyaluronic acid is also used to help speed up the recovery of wounds and maintain healthy joints. When choosing a hyaluronic acid serum, look out for products that contain an ingredient percentage between 0.25-2.5% for the best results.