Liquid kratom extract is a kratom concentrate in liquid form. A full-spectrum, liquid kratom extract with about 3-4 uses per 15ml bottle. Soulful Herbals Kratom Extract is lab tested and guaranteed for purity and potency like all of our kratom products. This kratom extract features Organic Apple Cider Vinegar as a base. It is in response to those who do not want extracts with alcohol or vegetable glycerin as a base. Kratom extracts can be made with water, vegetable glycerin or water as the base.