The document discusses acne, its causes and treatments. It is authored by Dr. Ling Sien Ngan, an anti-aging and aesthetic medical practitioner. The practitioner discusses what acne is, common causes like hormones and clogged pores, potential complications like scarring, who is most likely to get acne, and different types of acne. Home remedies and lifestyle changes are recommended to treat mild acne, along with seeking medical treatment for more severe cases or existing scarring.