https://www.prettyorganicgirl.com/foundation
You probably won't want her to start wearing foundation at such a young age but there are some useful information in this link I've been using myself
https://www.thegoodtrade.com/features/best-cc-cream/
I've put in hours of research in brands and so far Pacifica is the cheapest and healthiest option I can find
https://www.pacificabeauty.com/?tw_source=google&tw_adid=600079553242&tw_campaign=16466420799&gad_source=1&gclid=CjwKCAiAmfq6BhAsEiwAX1jsZ8_Qc7gMEcFzXWtqXYSIGROiwGsDNDl3ul-see-RbmM3cwdNY0hBORoC_agQAvD_BwE
You could always get fake make up for her instead! Or get something super basic like moisturizer and a Mario badescu face spray. I allow my toddler to use those occasionally because she wants to when she sees me using them
I call wearing makeup "being fancy" instead of saying pretty or whatever else. We started getting her play makeup last christmas and she loves messing around with it. She makes herself look like quite the drag queen 😂 but she has fun with it. She likes to watch me get ready and we'll do light eyeshadow sometimes. But I try to not make it a big deal
I definitely think you should do more research on ingredients in childrens makeup... Even in adult makeup lots of harmful chemicals in it ... I'm making the switch to all organic and minimalist ingredients for makeup. I like the brand Pacifica which can also be found at whole foods