Plump up your lips with the Barry M That's Swell! Peptide Plumping Lip Liner. The innovative volumizing ingredients work to moisturise and maximise with a pigmented finish. How to use: Simply trace the outline of your lips for a plumped look, and layer over our That's Swell! Peptide Plumping Lip Oil for maximum volume. Benefits 100% Cruelty Free and Vegan. Contains Peptides to moisturise and increase lip volume.