What advice would you give a customer looking to hire a provider in your area of work?
Look for quality as well as price. Consider how long the artist had been working professionally. Ask if the artist mixes their own henna and what the ingredients are. Do not hire an artist who cannot or will not share their henna recipe. Never, ever hire a henna artist who uses so-called "black henna". Natural henna is never black. "Black henna" is actually a chemical called paraphenylinediamine (PPD) and can seriously harm you.