Vientamese strain are one of the most sought after strains on the market which originates from the dense forest along the Mekong River in Vietnam. Yellow Vientamese strains are dried using a different technique (sun dried). This is said to be the vest used in small doses. Though effects vary based on age, experience and dosage, this strain is said to have the most euphoria. Some say it also the best for energy while also providing great relief from stress and anxiety.