The most common way to organize the different strains is to look at the color of the leaf veins. You can find kratom with bright red, white, or green veins — which gives us a clue to the effects we’re most likely to feel from that particular strain.
You won’t be able to see the different vein colors when you order your kratom because this part is removed during processing.
1. Red Vein Kratom Strains
Red vein kratom strains are the most popular among people using the herb to promote sleep or reduce pain. They’re particularly high in the alkaloid 7-hydroxymitragynine, which is one of the primary mu-opioid receptor agonists in the plant.
Red kratom is abundant across Southeast Asia, so virtually every type of kratom is available in a red variety.
These strains are fast-acting and powerful — so make sure to start with a smaller dose when using these strains for the first time.
The strongest kratom currently available for managing pain is the red maeng da strain.
2. Green Vein Kratom Strains
Green vein kratom strains are considered more balanced than the other strain types.
Their effects are somewhere in the middle between stimulating and relaxing — but there are exceptions. Some green kratom strains, such as green Bali kratom, are much more stimulating than the rest.
There are no particularly sedating green vein kratom strains.
In general, green vein kratom is considered well-rounded and can be used for both energy and sleep support, depending on the dose. They’re a great option for beginners looking to experience kratom for the first time.
3. White Vein Kratom Strains
White vein kratom is the opposite of red vein. They’re only mildly sedative and analgesic — but offer excellent stimulating and euphoric qualities instead. They induce a feeling of clear-headedness and a positive attitude — which makes them excellent options for people using kratom in small doses as a nootropic.
Many people use white vein kratom first thing in the morning in place of coffee or in microdoses to promote focus, concentration, and productive flow states. Red vein kratom is reserved for use in the evening when the stimulating effects of white kratom start to wear off.
The most stimulating white vein kratom is white horn kratom.
4. Yellow Vein Kratom Strains
Yellow vein kratom is not technically a different strain of kratom like red, white, or green. You won’t find yellow vein kratom in nature.
Instead, yellow vein kratom is made by processing raw white kratom strains in a particular way. This method of drying and processing the leaves changes the color from white to yellow and alters the effect profile of the plant.
Yellow kratom strains are similar to green Malay kratom in terms of effect. They’re potent, euphoric, and have a very clean “pick-me-up” sort of feel to them. They’re also particularly long-lasting. Many people prefer yellow vein varieties to white vein precursors as a nootropic or mood-booster.