500 grams of plain leaf Kratom is reduced to a concentrated extract resin of approximately 25 grams. That 25 grams is then cleaned, increasing the potency, and resulting in 15 grams of final product. This is not a weak water based extract that many other vendors offer. This material has been lab tested, showing it to contain 54% total alkaloids; 17% pure mitragynine with 1-2% being 7-hydroxy-mitragynine. One of the most highly concentrated kratom extracts available.