Energy

theacrine

Theacrine is a stimulant that provides sustained energy and improved focus without the typical stimulant crash.

Clinical Dose: 100mgFound in: 58 products

What Does Theacrine Do?

Theacrine is a purine alkaloid naturally found in Kucha tea leaves that functions as a powerful neuro-energetic agent. While it is chemically similar to caffeine, it operates through distinct pathways to provide a smoother, longer-lasting stimulatory effect without the dreaded post-workout crash.

  • Sustained Energy Production: Unlike caffeine, which can peak and crash quickly, theacrine provides a steady stream of energy that lasts for several hours, making it ideal for long training sessions.
  • Enhanced Mental Focus: By influencing dopaminergic signaling, it helps improve concentration and cognitive clarity, allowing you to maintain a strong mind-muscle connection.
  • Reduced Tolerance Build-up: Clinical research suggests that users do not develop a tolerance to theacrine as quickly as they do to caffeine, meaning it stays effective over weeks of consistent use.
  • Mood Elevation: It acts on the D1 and D2 dopamine receptors, which can lead to an improved sense of well-being and increased motivation to hit your PRs.

Clinical vs. Gym Bro Dosing

TierDoseNotes
Threshold25-50mgSubtle mood boost, often used to smooth out caffeine jitters.
Clinical100mgThe standard dose for noticeable, long-lasting energy and focus.
Performance200mgHigh-end dose for maximum endurance and cognitive drive.
Max300mg+Rarely seen in pre-workouts; may cause overstimulation in sensitive users.

Key Insight: Theacrine is most effective when stacked with caffeine. Caffeine actually increases the bioavailability and absorption of theacrine, creating a synergistic effect where caffeine provides the initial 'kick' and theacrine provides the 'legs' to sustain you through the end of your workout.

Side Effects & Warnings

  • Mild Jitters: While generally smoother than caffeine, high doses can still cause slight restlessness or a 'wired' feeling in sensitive individuals.
  • Insomnia: Due to its significantly longer half-life than caffeine, taking theacrine late in the evening may interfere with your ability to fall asleep.
  • Digestive Discomfort: Some users report mild nausea or stomach upset when taking high doses on an empty stomach.

Tip: If you are sensitive to stimulants, start with a 50mg dose to assess your tolerance, especially if your pre-workout already contains a high dose of caffeine (300mg+).