Clarins Pore Control Serum 1oz / 30ml Clarins' Pore Control Serum is enriched with firming Vine Flower and matifying organic Strawberry Tree Fruit extracts that visibly tightens enlarged pores so they appear virtually invisible. Tamarind pulp acid naturally exfoliates pore-clogging debris to help smooth and refine skin's texture for a boost of radiance.