The third factor you need to consider when buying kratom like Red Vein Kratom is whether the vendor you want to buy from has the strain you need. Some of the most popular kratom strains include red Sumatra, red horn, red Indo, green Malay, white Borneo, and white Sumatra among others. If you are looking for kratom to boost your energy, the white strains are the right option for you, seeing as the red strains are mainly used as sedatives. Most online stores have both strains in stock so their customers are not forced to look elsewhere when they need either. Finding the right strain is more of a trial and error process, and as such, people who are new to kratom need to be ready to try the different strains before they find whatever works for them. Just like most supplements, it is normal for you to develop tolerance after some time, but all you need to do when this happens is change the strain.