Gosh why on earth are you allowing a 17yr old to use such thick heavy foundation and powder.
Anyhow that aside I would give her a set amount of pocket money and she buys her own toiletries and cosmetics.
It's a good way for her to learn the value of things , secondly to make sure she doesn't waste products as she know she be liable to replace the next one.
And also she be able to learn the prices of things and learn to shop smartly, and perhaps use less "posh" products.
As for the comparison of which is similar , the studio sculpt is quite mouse like and made for drier skin types but with a fuller coverage. So has you tried the maybelline mouse foundations , as a younger adult I used this and was fine. NYX also make nice powders at a reasonable price.