I've never used Colonix, but when I did the Parastroy cleanse two years ago my hair came out by the handfuls. Some on the forum said it was a detox/die-off symptom. I am still dealing with frizzy new hair growth-at least it comes back. Last month I did another round of Parastroy and did not loose much hair, nor did I see much sign of parasites, just a Tapeworm segment. I'm sorry I don't have anything in the way of advice, but the hair will grow back.