[Miscellaneous] My ten year old niece has started breaking out. What products are safe to use at her age? How do I approach this situation with over stepping my bounds?

Beauty Tips For Body Care
As the title says, my niece has started breaking out. Her father and grandmother are making really harsh suggestions for her skin, (Clean and clear astringent, baking soda paste, I. Kid. You. Not.) They both have the opinion that if it's not burning, it's not working, and don't use moisturizer if you have breakouts.I would like to offer her some help because it seems to bother her, but I don't want to sound bossy or like I think I know better than they do.Also, what products would be good to suggest for her? Can she use a BHA or AHA?
Girls Blog 2015
Submitted by curlywurlies