Acne is, affecting over 80% of teenagers at some point. Estimates of prevalence vary depending on study populations and the method of assessment used. Prevalence of acne in a community sample of 14-16 year olds has been recorded as 50% and it has been estimated that up to 30% of teenagers have acne of sufficient severity to require medical treatment.
There are some recent researches in this field like:There is some low-quality evidence from single trials that LGLD, tea tree oil, and bee venom may reduce total skin lesions in acne vulgaris. Body mass index is negatively associated with acne lesion counts in Taiwanese women with post-adolescent acne. It can’t get access to the full text of this study, but it appears that researchers found evidence that heavier people have less acne than thin people.