Kratom strains are classified by vein color, which reflects the leaf’s maturity at harvest and how it is dried, and by regional names like Bali, Maeng Da, and Sumatra. Red vein is made from mature leaves, green from semi-mature leaves, and white from young leaves. Yellow vein is a specialty product that uses a distinct drying and curing process. If you’re new to kratom, understanding these categories is the first step to choosing a product with confidence.
This guide breaks down each vein color, explains common strain names, and covers what to check before you buy.
Kratom (Mitragyna speciosa) is a tropical evergreen tree in the coffee family, native to Southeast Asia, including Indonesia, Thailand, Malaysia, and Vietnam. Its leaves are dried and ground into a fine powder, or packed into capsules and other formats.
The leaves contain naturally occurring alkaloids, most notably mitragynine and 7-hydroxymitragynine. The balance of these compounds varies with leaf maturity, growing region, and processing, which is why different strains can feel different from one another. Individual experiences vary, so no strain should be treated as a guaranteed outcome.
Two systems overlap:
A product name usually combines both, such as “Red Maeng Da” or “White Sumatra.” Reading the name tells you the vein color and the type.
Red vein kratom comes from mature leaves, which are generally higher in 7-hydroxymitragynine. It is typically described as the mellow, evening-oriented option, and customers often choose it for winding down at the end of the day.
Popular red options include Red Bali, Red Borneo, Red Jongkong, Red Maeng Da, and Super Red. Because red strains are commonly seen as the more relaxing end of the range, many buyers save them for the evening.
Green vein kratom is made from semi-mature leaves and sits between red and white. It is usually described as balanced, which makes it a popular starting point for newer buyers. People commonly choose green strains when they want something moderate rather than intense.
Well-known green varieties include Green Bali, Green Maeng Da, Green Malay, Green Sumatra, and Green Vietnam.
White vein kratom comes from young leaves, which tend to be higher in mitragynine and lower in 7-hydroxymitragynine. It is generally positioned at the stimulating end of the spectrum, and many buyers choose it for daytime use.
Common choices include White Maeng Da, White Sumatra, White Jongkong, White Bali, and Premium White.