El Centro Dermatology is a website that offers skincare products, laser treatments, and medspa services. However, there is no information available on the specific ingredients or materials used in their products.

One of the search results discusses what a dermatologist should know about hair cleansing products. The article explains that the negative charge of hair is attracted to the positively charged ingredients in shampoos and conditioners. However, this information is not specific to El Centro Dermatologys products.

Another search result analyzes the presence of skin repair ingredients in cosmetic products, topical medicines, and medical devices. The study identifies several types of ingredients, including inorganic compounds, hydrocarbon compounds, vitamins, botanic extracts, and marine ingredients. However, this information is not specific to El Centro Dermatologys products.

Finally, a search result provides information on advertising policies for healthcare and medicines. The policies state that pharmaceutical manufacturers may promote over-the-counter medicines in certain countries, but there is no information on specific ingredients or materials.

In summary, there is no information available on the specific ingredients or materials used in El Centro Dermatologys skincare products.