RAW B-Vitamin is a soluble plant supplement that is used for horticultural purposes. RAW B-Vitamin contains 1% vitamin B1. This product contains the highest concentration of fully water soluble vitamin B1 available to the home gardener. RAW B-Vitamin can be used at all stages of growth and flowering. A 2 oz package of RAW B-Vitamin makes up to 200 gallons, an 8 oz package makes up to 800 gallons and a 2 lb package makes up to 3200 gallons. RAW = soluble.