What it is: Holistix is a brand from Retrohair that takes a holistic approach to hair care. Size What it does: Focusing on sustainablity, Holistix uses only the best natural ingredients and even goes as far as using tree-free packaging. What else you need to know: This daily Shampoo hydrates and conditions and strengthens while cleansing: No Sulfates. No Sodium Chloride. No Parabens. No Paba. N o added colors. Natural Fragrances. Not tested on animals. Made in the USA.