No.

Diesel Test Hardcore and Procycle are so effective, they are actually used for PCT (Post Cycle Therapy). GET DIESEL test boosters supports natural production - they do not suppress or shut down your body.

When testosterone is supported properly, you may experience:

• Increased strength and power

• Improved muscle-to-fat ratio

• Higher training intensity

• Better mood and drive

• Improved recovery

• Stronger response to pre-workouts
  

Testosterone impacts performance, confidence, and physical output — not just size.

Diesel Test focuses on:

• Proven testosterone support ingredients

• Effective dosing

• Third-party testing

• A brand legacy going back to 2002

• A legacy of award-winning test boosters back to 2005 With an effective herbal test booster, you can't just add caffeine and tingles to make it feel like it's doing something. They have to actually work or they get called out. The original DIESEL TEST was released in 2005, Procycle in 2009. In 2016 and 2017 Procycle was named the Planet Muscle test booster of the year. A product doesn't last 21+ years on the market, win awards being trash.
  

DIESEL TEST was released in 2005 for those of you who remember the yellow bottle, red stencil black font and red pills. DIESEL TEST 2010 was released in 2008 and in 2010 we released DIESEL TEST Hardcore. Procycle was first released in 2009. Over 21+ years.

Consistent, performance-driven progression:

• Better mood and drive

• Increased training aggression

• Stronger strength progression

• Improved muscle-to-fat ratio

• Enhanced response to pre-workouts
  

Not overnight hype. Noticeable performance over time.