Smoking Marijuana or Tobacco
Although there is no conclusive evidence that smoking tobacco or marijuana causes or aggravates acne, there are sufficient doubts to warrant mentioning it. As a result of its effect on collagen production, tobacco use can induce acne and leave scars. In contrast, marijuana, which is partially lawful due to its positive therapeutic effects, can cause an imbalance in the production of testosterone, which leads to an increase in sebum production, and the cycle continues.
