B-12 Instant Energy by NOW FOODS (75pk) Best Reviews energy vitaminsNOW Foods B-12 Instant Energy. Swanson $7.69. Retail $14.99. NOW B-12 Instant Energy combines three forms of B-12 for maximum utilization by the body.,Now Foods Instant Energy B-12 2000mcg, 100-Count . 4.2 out of 5 stars . $8.06. NOW Foods B-12,Liquid B-Complex, 8 ounce . 4.0 out of 5 stars . $13.19,NOW® Vitamin B-12 Instant Energy is the perfect way to keep alert and energized,...