Transparent Labs Stim-Free Pre-Workout (Tropical Punch)

PreSeries Stim-Free is a stimulant-free pre-workout supplement designed to boost nitric oxide levels, enhance focus, endurance, and promote lean muscle gain without caffeine.

• The description claims to improve focus, endurance, and promote lean muscle gain.
• The description claims to be suitable for those intolerant to stimulants or cycling off caffeine.