My roommate used my face wash in the bathroom without asking at all. But the funniest part is that then they came to me complaining that their face was dry. I didn’t say anything, but I felt a bit annoyed inside. What am I supposed to do if they start using all my products like this? Do you think I should talk to them about it directly or would that be overreacting?
These roommate stories are always like this. Doesn’t anyone look at whose name is written on the bottle in the bathroom? In my opinion, it’s not about the soap, it’s about the habit. Today it’s face wash gel, tomorrow shampoo, the next day it’s the charger, and before you know it, this will come to an end. You really need to talk about this.
Is this the first time he’s done this? I wonder if he used something else without permission before? 
@sorgulayan actually didn’t do it for the first time, they had used my hair conditioner before, but I thought it would be fine if I didn’t notice back then.
But I need to say something, facial cleansing gels aren’t really for everyone. In fact, if you use them incorrectly, they can cause stains. Also, did you accidentally tell her that hers might cause an allergy? I don’t think it’s fair to get mad without warning her 
@mahrem_saf what you said is false information, facial cleansing gel doesn’t cause allergies or anything. But it’s true that not every product is suitable for every skin type. I think the issue here is not the product that’s suitable for your skin, but using it without permission.
Kiddo, if you don’t set clear boundaries in a roommate situation, this is what happens. If she were my daughter, I would directly say, ‘What you’re doing isn’t cool, everyone should use their own things.’ If you don’t say anything, it will just keep going like this.
My daughter complained and said, “my face is dry”? Honestly, this is too much embarrassment. You seriously need to go and tell her, “please don’t use it without permission next time.”