Vitamin Branding Corp., New York, NY, manufacturer of the Everlast Nutrition line of products, has launched a line of single-serve vitamin packets. Energy Blast is a three-capsule caffeine and ginseng blend; Multi-Blast is a four-pill nutritional formula that contains vitamins A, C, E and other ingredients and Cold Blast is a four-pill immune stimulant that contains echinacea, zinc and vitamin C.