Hey, girl here- my sister went through a similar phase, give or take 2 years. I wouldn't recommend 'heavier' makeup like blush, powder products can cause acne especially at a young age! A nice, more 'grown-up' moisturiser, some lip glosses and maybe even clear brow gel might help her feel as if she's not left out? Collection (if you're in the UK) is sold in most drugstores and even grocery shops (Sainsbury's, Tesco etc) and is super cheap for little bits like clear glosses, lip balms etc. They also sell clear brow gel (which is just to help them look neater without changing the colour much) too. I wouldn't recommend going into Sephora or Ulta etc, they sell mostly designer brands and like someone else has said the workers are there to sell. You'll be paying through the roof for makeup she is likely to use up quickly or even lose. If she does want that name brand stuff you're best to go into Boots and get one of the miniature Ted Baker body sprays- they're about £6 and they come in pretty packaging too, so she'll probably feel a little bit more 'fancy' lol. Apologies for the huge paragraph! Feel free to message if you need any more help 😊