The Yellow Vietnam strain is grown in the Mekong Delta region of Vietnam. Yellow kratom is the most rare form of kratom available on the marketplace. Yellow kratom strains result from using a different drying technique on white kratom and green leaves, as the drying process plays a huge role in the leaves’ color and alkaloid content. But even though the leaves are the same, the effects of yellow kratom do vary. Yellow kratom effects are often compared to those of green kratom, although many report that its effects are slightly more mild. Yellow Vietnam is he strongest strain of yellow kratom. Effects: euphoric, stimulating, focus Potency: High