I've been through the clinic hunting process twice because I moved. The first place was all about flashy ads, the second was a quiet medical office. What a difference. A reliable provider will explain exactly which filler brand they use and why. I remember reading how to choose lip filler clinic tips online before my second attempt, and they saved me. Look for someone who asks about your medical history thoroughly, shows you the sealed product packaging, and doesn't rush the consultation. Also, if they offer discounts for buying multiple syringes upfront - run.