★★★★★
Sangre de Grado does all that and more, this is the most in depth write-up I have seen - it's well referenced and properly researched: http://www.rain-tree.com/sangre.htm. They seem to have closed sales on that site but I foundhere http://www.raintreeformulas.com/sangre-de-grado-resin-439. I think its the same company! Raintree had the amazing amazon herbs.
