The P90X system is a 90-day workout routine that uses a technique called "muscle confusion," a technique that prevents exercise plateauing by varying exercises over days and weeks such that the body has difficulty adapting.
This 12 DVD workout session program is led by no other than the famous instructor Tony Horton and his revolutionary moves that he created and designed to tone and build your muscle mass in three short months.
Why does P90X work?
The secret behind the P90X system is an advanced training technique called "Muscle Confusion," which accelerates the results process by constantly introducing new moves and routines so your body never plateaus, and you never get bored! Whether you want to get lean, bulk up, or just plain get ripped, there's an endless variety of ways to mix and match the routines to keep you motivated the full 90 days and beyond!
What you'll receive with the all-inclusive P90X program: 
"How to Bring It" (DVD)
Provides a quick overview of complete P90X Extreme Home Fitness training system
P90X Fitness Guide
Full of valuable fitness information to help you get the most out of your program
P90X 3-Phase Nutrition Plan
Designed to help you lose fat while maintaining high energy levels
12 Highly Diverse and Intense Workouts:
1. Chest & Back
2. Plyometrics (explosive jumping cardio)
3. Shoulders & Arms
4. Yoga X
5. Legs & Back
6. Kenpo X (Martial Arts style)
7. X Stretch
8. Core Synergistics
9. Chest, Shoulders & Triceps
10. Back & Biceps
11. Cardio X
12. Ab Ripper X
Don't wait another minute!
All it takes is an hour per day to feel and look better than you ever have. All you'll need is a dumbbell set or resistance bands, and a chin-up bar.
You'll be absolutely amazed at the results that can be achieved in just 90 days.