Trinny London Trinny London Plump Up Serum 30ml | Crafted to firm and lift all skin types, trinny lonon's plump up is a sell-out serum powered by an advanced 4-peptide complex alongside hydration-hero hyaluronic acid. This best-selling formula harnesses the transformative effects of peptides which work to boost the skin's collagen and elastin production to reduce the appearance of fine lines and reinforce its stucture, while hyaluronic acid and betaine deeply hydrate, draw-in moisture and restore bounce for a visibly firmed, more youthful appearance.