• Access the full program in the JS Workout App
• Time-efficient workouts that maximize results
• Easy-to-follow meal plans to get lean
• Adaptable workouts suitable for all fitness levels
• Sub in your favorite exercises anytime
• Support from the JYM Army Facebook group
Shawn Sturwold
Rachel Elliot
Raymond Cool
For decades, the Rock Hard Challenge has helped people strip fat, pack on dense muscle, and develop a physique that looks as strong as it feels. This isn’t about getting bulky or just shedding pounds—it’s about building a body that’s lean, hard, and defined.
Over the next 8 weeks, you’ll train with intensity, lift with purpose, and push your limits with explosive reps and cardioacceleration to maximize fat-burning and muscle-building at the same time.
The Rock Hard Challenge is built around a 3-day training split. You’ll cycle through heavy, moderate, and light resistance training, utilizing explosive reps to activate fast-twitch muscle fibers for maximum strength and size.
Training hard is only half the battle. If you want to gain lean muscle or cut fat, your nutrition has to match your goals. The Rock Hard Challenge offers structured meal plans based on your target—maximzing muscle and size gains or fat loss.
Maximize your workouts, fuel recovery, and support optimal hormone levels with the right supplements. The Rock Hard Challenge isn’t just about training—it’s about training smarter. These JYM Supplement Science products will help you get the most out of every session.
Enhance strength, muscle pumps, endurance, and focus for every workout.
Premium protein blend for muscle growth and recovery.
Science-backed ingredients that support testosterone levels, vitality, and performance.
If you’re ready to build a leaner, stronger, more defined physique, this is your plan. The Rock Hard Challenge has helped hundreds of thousands achieve real, visible results—now it’s your turn. In 8 weeks, you’ll be looking and feeling better than ever.
Start The Program
