I am a licensed medical esthetician working in a medical spa. I am not paid hourly. I only get paid by tips and product commissions. Is this fair?

Absolutely not! Nobody works for free! This is a huge red flag. What reputable med spa accepts tips? Services in the medical fields are billed not suggested or tipped. Stay away from people who's intention is about money and that degrade the reputation of the field. Wait for real opportunities or better yet make your own.

forget about fair- lots of situations in life are unfair- what you're describing is ILLEGAL.

Check with your state's Labor board website, and good luck