I sent my hair, in about 2 weeks the results came back. It didn't show anything I'm allergic to, I'm allergic to shellfish, dust mites, etc. Then they give you bonus testing on your iron levels. I been a anemic for 20 yrs. Please don't believe these test results, go to your own doctor and get tested. Because been allergic reaction is dangerous. This company is just a ripoff. Plz don't believe this company results.