As a skincare expert, I would not recommend a 10-year-old using salicylic acid without consulting with a pediatrician or dermatologist first. Salicylic acid is a potent ingredient commonly used to treat acne and exfoliate the skin. However, it can be too harsh for young and sensitive skin, potentially causing irritation, dryness, or other adverse reactions.

Children's skin is still developing and tends to be more delicate than adult skin. It is important to prioritize gentle and age-appropriate skincare products for children. Instead of salicylic acid, it is advisable to focus on maintaining a regular skincare routine that includes gentle cleansers, moisturizers, and sunscreen specifically formulated for children. If your child is experiencing skin issues, it is best to consult a medical professional who can recommend suitable skincare options for their age and skin condition.