Detailed answer

Allergies to skincare products are immune responses triggered by certain ingredients in skincare products. They typically manifest as skin irritation, redness, itching, or rash. Liposarcomas, on the other hand, are malignant tumors that arise from fat cells. They are not caused by allergies to skincare products. Liposarcomas can develop in various parts of the body, including the scalp, but their cause is still unknown and is likely related to genetic mutations or environmental factors. If you suspect any abnormal growths or changes on your scalp or anywhere else on your body, it is important to consult a medical professional for proper diagnosis and treatment.