All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
The rulings concerning wearing make-up do not change according to fasting or non-fasting.
If the product of the make-up is pure and harmless, and the woman does not expose herself to non-Mahram men, then it is lawful to wear this make-up regardless of whether the woman is fasting or not fasting.
However, if the make-up is impure or harmful or that the woman exposes herself to non-Mahram men while wearing it, then it becomes unlawful for the fasting woman and the non-fasting one.
Nonetheless, the sin committed by the fasting person is greater as it is a breach of the sacredness of fasting.
Allaah Knows best.