Today, I have asked a doctor, saying: "Is dimethicone oil a steroid?" The doctor said: "Dimethicone oil and steroids are different. Steroids have a specific chemical structure and are related to many physiological adjustments in the body, such as hormone action. Dimethicone oil, on the other hand, is an organosiloxane polymer, often used as a lubricant and defoamer. In medicine, it is mostly an excipient, helping to shape and stabilize drugs, or used to eliminate gastrointestinal gas."

The questioner also said: "I would like to hear a detailed comparison of the two." The doctor replied: "Autochemical nature, steroids are steroid compounds, and dimethicone oil is a siloxane chain structure. Functionally, steroids involve complex physiological functions such as metabolism, immune regulation, and anti-inflammatory, and some have powerful anti-inflammatory and immunosuppressive effects. However, dimethicone oil has no physiological function of regulating physiology, but only physical effects, such as moisturizing and defoaming. Application scenarios, steroids are mostly used for endocrine disorders, autoimmune diseases, etc.; dimethicone oil is mostly used to improve gastrointestinal discomfort symptoms. And the side effects are also different. Long-term use of steroids may cause Cushing's syndrome, osteoporosis, etc.; dimethicone oil is relatively safe and has few adverse reactions. "Therefore, it can be seen that dimethicone oil is not a steroid, and the difference between the two is obvious.