All Alexandr&Co. products have been specially crafted and formulated for maximum skin penetration and minimal pore-blocking ability. Therefore, there is usually no issue for customers concerned about clogged pores. However, as each person's skin is different, we understand and appreciate your concerns if you develop clogged pores and acne which may naturally occur with the use of any skincare products. Using additional products on the skin such as sunscreens that contain silicon extracts may exacerbate pore clogging and give rise to acne.