I’ve heard a lot of debate about what kratom vendors are calling “yellow kratom”. I was curious, so I spoke to my supplier and this is general information about what yellow kratom really is.
Most yellow kratom, I was told, is actually kratom that has been fermented, similar to some types of green tea. The result of this, is that some alkaloids are oxidized, changing the effects profile.
Other yellow kratom strains, are so called because they happen to have a vein that is yellow tinted in color. These strains will more resemble the effects of white vein kratom. This is not uncommon among kratom strains, and some label it as yellow kratom.