Introduction The spread of non-medical products has led to serious skin complications. Pathological Effects • Damage to the skin barrier • Chronic inflammation • Allergic reactions • Pigmentation changes Examples • Unknown mixtures • Counterfeit creams • Strong acids Outcomes • Worsening of the condition • Skin thinning • Chemical burns Conclusion Random and unsupervised treatments are a major cause of failure in cosmetic therapy. Prepared by: Dr. Haider Riyadh Abis AL_mustaqbal University is the first university in Iraq