Start asking around town. On sight Rosalyn and Gareth both were.. not supportive of their existence.
Huh, surprising that Rosalyn wouldn't like it. One of her RP things is to get a player to drink her RP 'love potion' before engaging in... fun times with her. A bit hypocritical to not like an allure potion. If anything, I'd expect when she gives the player the 'love potion' to drink, it should be the allure potion instead of a glow potions. (Which is usually what she gives me.)