Glutathione + Vitamin C

My LLMD wants me to order Tri-Fortify Orange (Liposomal Glutathione & Vitamin C) from Researched Nutritionals to help with detoxing. The only problem is that it is $100 per bottle, and I am already broke from the other medications!

I am wondering if I can just buy Liposomal Glutathione separately and then add Vitamin C by itself. It would be a whole lot cheaper for me if it would offer the same kind of relief.

Has anyone done this? If so, what are some Brands that work well? Prices range drastically, and I want to make sure I am getting what I need and not just the cheapest.

You can buy the Lypospheric Glutatione and Vitamine C from iherb? I think it's a bit cheaper