Résumé
Juvenile acne affects 80% of 12-20 year-olds and is the most common dermatological condition. Acne is a chronic inflammatory disease of the pilosebaceous follicle with 3 main causes: hyperkeratinisation, hyperseborrhoea and bacterial colonisation with cutibacterium acnes. It can have a major psychosocial impact on these developing young people and can lead to scarring if not properly treated. Local and then per os treatments are initiated by a dermatologist depending on the stage of the disease. They require appropriate monitoring and advice, as the topical forms are hightly irritating, antibiotics can induce resistance and isotretinoin is teratogenic. New treatments are being studied, such as clascoterone, and others, such as hormone therapy, are being used off-label. Dermocosmetics are a good way of supporting these treatments. With their sebum-regulating, keratoregulating, anti-inflammatory, antibacterial and moisturising properties, these different active ingredients help to limit the signs of acne. An appropriate skincare routine including cleansers and moisturisers, accompanied by more specific treatments such as purifying masks and anti-imperfection treatments, is essential in the treatment of acne. In the age of social networking, fake news rubs shoulders with popular science. Young people are increasingly fond of these media and follow influencers, to the detriment of health professionals offering sound advice. Communication work and a multidisciplinary approach would be the way forward to better care.