Boost your focus and clarity with Onnit Alpha BRAIN® Instant! This Ruby Grapefruit drink mix helps you stay sharp, think fast, and power through tasks—without caffeine or crashes. Just mix with water for a clean, fast-acting brain boost. Sugar-free, gluten-free, and keto-friendly. Perfect for work, study, gaming, or creative flow. Stay on top of your game—anytime, anywhere.