The La Roche Posay Hyalu B5 Serum is one of the brand's best-selling products. This month, the brand adds to the Hyalu range with gel moisturiser that's not only super hydrating, but also offers sun protection. Like the serum, the La Roche Posay Hyalu B5 Aquagel SPF 30 (£26) contains hyaluronic acid, as well as antioxidants to offer another form of protection. Suitable for sensitive skin, the lightweight gel — which comes out of the tube pale blue but goes on skin completely clear — is ideal for summer and truly does leave your skin feeling soft and silky, with a little bit of dewiness, too.