Many factors contribute to pore distortion, among which a genetic predisposition making pores more visible to the eye, as well as prone to clogging. Excessive sebum is another significant cause. Gender, age or a hormonal imbalance can also play a part. Stress, tobacco and pollution all influence the state of your pores. At Bioderma, we put the best ingredients into Sebium Pore Refiner. A powerful astringent, agaric acid reduces the size of pores, hence refining skin texture. Silica powder and anti-reflection particles ensure a powdery and mattifying effect. Salicylic acid exfoliates to restore radiance, assisted by antioxidants: Mannitol and Ginkgo Biloba protect from free radicals, making Sebium Pore Refiner an excellent daytime protection. The exclusive Fluidactiv® complex purifies your skin: it normalizes sebum quality and limits the obstruction of pores, preventing irregularities.