Acne vulgaris is the most common form of acne and mainly affects adolescents, especially boys. This skin disease is caused by an abnormally high activity of sebaceous glands, and is characterized by the appearance of unsightly blackheads, whiteheads and reddish lesions. The sebaceous glands of people with acne produce excess sebum (oil). In excess amounts, the sebum blocks the pores of the skin, causing a proliferation of bacteria and inflammation of the follicles. Dr. Linda Ptito specializes in acne treatment in Montreal, using advanced skin care and medical solutions.