SUGGESTED USE: Take ½ SERVING (1/2 scoop) INITIALLY TO ASSESS CAFFEINE TOLERANCE. On training days, mix 1 serving (1 scoop) with 6-10 ounces of cold water 15-30 minutes prior to your workout. DO NOT take within 4-5 hours of bedtime. Taking 315pre on a full stomach may diminish its effects. Many individuals notice the initial energy, mental focus and volumizing effects within 10-15 minutes of ingestion, with a progressive increase every few minutes after.