For a limited time I will be selling BH4 here:
http://kigeliashop.com/product/pteridin-4-bh4-ecological-formulas/
http://kigeliashop.com/product/pteridin-4-bh4-research-powder
The research powder is sourced from a Swiss lab that used to manufacture tablets themselves before BioMarin drove them out of that business. I used their tablets in the past and know of no higher quality manufacturer.
http://kigeliashop.com/product/pteridin-4-bh4-ecological-formulas/
http://kigeliashop.com/product/pteridin-4-bh4-research-powder
The research powder is sourced from a Swiss lab that used to manufacture tablets themselves before BioMarin drove them out of that business. I used their tablets in the past and know of no higher quality manufacturer.