“Indonesian farmers use old leaves and an ancient, more complicated drying process to achieve a yellow vein strain. And the result is that yellow strains have their own very unique aroma compared to red, white or green indo Kratom, making for a gripping and fascinating experience”(Kratomiq).

Said to give lots of euphoria, good pain relief and a little sedation. Feel free to check this Reddit Forum out which lightly  covers this subject…Link to Reddit