Sarah Chapman's Skinesis range is the distillation of 20 years of industry experience, bringing facialist-quality skincare to your own bathroom cabinet. The Platinum Pep8 Stem Cell Serum in particular aims to supercharge the skins resilience and reveal a luminous, healthy glow - all thanks to the infusion of eight potent peptides, gardenia stem cells and hyaluronic acid to plump and hydrate.