The Kratom Trading Company is proud to offer 4 high quality Red Vein Kratom strains. Red Vein Kratom shows an excellent ability to reduce pain, and is known for having a relaxing, and sedative effect. This can be great for people suffering from a lack of sleep due to pain or insomnia. Red Vein also helps to open the senses, encouraging feelings of well-being, safety, comfort, and all around warmth. A typical Red Vein strain kicks in fast, and lasts for several hours. Kratom red vein.