Bare Biology Vitamin D3 4000IU + K2 100Ug Daily Oral Vitamin D Spray Beam & Balance unflavored (RED) 25ml Bare Biology Beam & Balance Vitamin D3 & K2 spray unflavoured oil is a really easy way to get a high dose 4,000iu (100 micrograms) of vitamin D3 balanced with 100 micrograms of K2 in just three small sprays, minimal ingredients (all plant-based) and in a base of MCT oil. Flexible dosing.