Today I have another Christmas Gift Guide to share with you, this time focused on haircare. I am loving all of the gift guide posts I am seeing, although most of them are just making my wish list longer and longer! Just like skincare, haircare can be difficult to gift as some people are quite committed to certain brands and routines. I have chosen four well known brands that won't really change an existing haircare routine, but could rather be used to supplement it. Let's start with haircare from the inside, with Trichotin Hair Regenesis from Fusion Labs. This nutritional…