Caudalie’s Premier Cru The Serum is an innovative blend of the label’s patented ingredients - Resveratrol, Viniferine and Polyphenols – and uses Vinergy® technology to ensure highly effective anti-ageing results. Developed in partnership with Harvard Medical School, it boosts skin's metabolism and enables it to effectively fight signs of ageing - reducing the look of visible wrinkles, dark spots and a lack of firmness.