Why are Training Boosters Useful?

Training boosters are a popular supplement for many athletes who want to optimize their performance in the gym and during intensive strength training. In bodybuilding, such supplements are often integrated into a comprehensive bodybuilder fitness plan to help achieve peak performance. But not all boosters are the same: There are normal boosters with stimulants for focus and energy as well as pump boosters that improve muscle pumps and blood circulation. In this article, we take a closer look at the differences and analyze the ingredients using the ESN Crank and ESN Crank Pump Pro to explain the effects of each substance.

Difference Between Normal Boosters & Pump Boosters

Normal Boosters (“Stim Boosters”)

• Contain caffeine and other stimulants
• Improve focus, energy and performance
• Can increase endurance
• Ideal for intensive strength training sessions or training when tired

Pump Booster

• Contain little or no stimulants
• Promote blood flow and ensure a better muscle pump
• Support the nutrient supply to the muscles
• Perfect for intensive strength training or evening workouts

Ingredients of Stim Boosters

The ESN Crank is a highly effective pre-workout booster that increases maximum performance with stimulants, making it a favorite in bodybuilding circles.

Main Ingredients & Effects

• Caffeine (300 mg per serving)

→ Increases alertness and concentration, increases physical performance

• Beta-alanine (3,500 mg)

→ Improves muscle endurance, can cause a tingling sensation on the skin

• L-citrulline malate (5,000 mg)

→ Increases NO (nitric oxide) levels and improves blood circulation

• L-Arginine-AKG (2,000 mg)

→ Promotes the pump effect and supports the oxygen supply to the muscles

• Taurine (1,000 mg)

→ Can improve mental performance and reduce fatigue

• Tyrosine (1,000 mg)

→ Supports focus and can reduce stress

• Glucuronolactone (600 mg)

→ Promotes mental alertness

• Black pepper extract (5 mg)

→ Improves the absorption of the other active ingredients

Pre-workout boosters can be a valuable tool in strength training – but for long-term success, building a solid foundation in muscle growth is essential. Learn more about the basics of bodybuilding and how to optimize your training: Bodybuilding – General.

👉 Conclusion: ESN Crank is a powerful stim booster that combines energy, focus and pump – ideal for intensive bodybuilding and muscle building, fitting perfectly into a structured program bodybuilding approach.

Ingredients of Pump Boosters

The ESN Crank Pump Pro was specially developed for the pump effect – without stimulants, perfect for evening training sessions.

Main Ingredients & Effects

• L-citrulline (6,000 mg)

→ Increases NO production and improves the pump effect

• Arginine-AKG (2,000 mg)

→ Promotes blood circulation and oxygen supply to the muscles

• Glycerol monostearate (2,000 mg)

→ Supports cell hydration for a plump look

• Taurine (1,000 mg)

→ Supports muscle function and regeneration

• N-Acetyl-L-Tyrosine (500 mg)

→ Promotes mental focus, even without stimulants

• Beetroot extract (500 mg)

→ Natural source of nitrates, improves blood flow

• Black pepper extract (5 mg)

→ Optimizes nutrient absorption

👉 Conclusion: ESN Crank Pump Pro maximizes the muscle pump and is perfect for intensive strength training - without stimulants, supporting a balanced bodybuilder fitness plan.

Recommendation: Which Booster is Right for You?

• If you need energy & focus → ESN Crank (Stim-Booster)
• If you train in the evening or want more pump → ESN Crank Pump Pro
• For students or those on a tight budget, a coffee/energy/espresso before training in combination with a carbohydrate-rich pre-workout meal with extra salt can ensure good focus and pump.

Conclusion: More Performance Through the Right Boosters

Whether you are looking for the best boost for competition preparation in bodybuilding, for the Mr. Olympia, the IFBB/NPC championships or simply for your next gym workout - with the right training boosters you can increase your performance.

Train strategically, optimize your training plan and use the best supplements to take your fitness to the next level!