Blackheads

Hi,

My eleven-year-old son has blackheads on his nose. I don’t want to harm his skin, so I’m asking for skincare advice for him. What kind of face wash should I buy? Would, for example, a clay mask be suitable? What about Paula’s exfoliating toner with 2% BHA? At this age, I’m not sure what is appropriate to use. I would appreciate any advice 🙂