Detailed answer

Hair and scalp angiofibromas, also known as angiofibromas of the face or fibrous papules, are benign skin lesions commonly found on the face and scalp. They are not caused by allergies to skincare products. These angiofibromas are typically caused by an overgrowth of fibrous tissue and blood vessels in the skin. While the exact cause of these lesions is still unknown, they are believed to be associated with genetic factors and hormonal imbalances. Allergic reactions to skincare products can cause various symptoms such as redness, itching, or rash, but they do not lead to the development of angiofibromas.