It's worth considering the reason why people are pressuring you. I'd bet that they feel challenged by your lack of need to wear makeup, and if you were to conform to their whim, they'd feel more comfortable. ("if I need X to feel pretty, and she doesn't, then she must be better than me, which is bad! I want her to conform!") Everything they say is just is words to cover their true intentions. If this is the case, then addressing what they say is pointless. "You do you, and I'll do me," and leave it be. —
K_foxer9 1 min ago