What you need to know

Maximum Strength

If your goal depends on the impact strength, muscle mass and energy, the formula you are looking for is this. Pre-Workout Impact helps muscle regeneration and delays fatigue, ensuring that you do your best in training. It combines L-arginine (vasodilation potentiator), caffeine (ergogenic effect), extracts of Maca and Guarana plants, which have a stimulating effect, increasing physical endurance and decreasing the sensation of fatigue.


L-arginine, Creatine monohydrate, L-citrulline, Beta-alanine, Acidifier: Citric acid, Taurine, Aroma, Dye powder of beet extract, Caffeine anhydrous, Maca root powder (Lepidium meyenni root) guaraná (22% caffeine) (Sapindaceae Paullinia Cupana K., seed), Sweetener: sucralose.

 Manufactured in facilities that handle, soy, milk, gluten, eggs and lupine, and therefore may contain traces of them.

Nutritional table

Nutritional table
L-Arginin (base)
4800 mg
3800 mg
3500 mg
3500 mg
1000 mg
Caffeine anhydrous (Coffeine ™)
250 mg
Maca Root Powder
200 mg
Guarana extract
125 mg

How to take it

Take one serving (1 shake) 30 to 45 minutes before workout. To prepare a shake, add a shallow measure (22 g) in 250 ml of water. Mix well and drink.

Other information

Not recommended:

  • During pregnancy and breastfeeding;I
  • In case of hypersensitivity or allergy to any of the ingredients of the formula;
  • In case of kidney failure;
  • If you are taking hypotensive drugs, contact your health care professional before taking this product.

Scientific studies

See all studies
J Nutr 2007; 137:1650s-1655s
Br J Sports Med 2002;36:282–289
Amino acids 2011; 40:1369-1383
Nutr Res 2008; 28 (1): 31-5
EFSA Journal 2011; 9(7):2303
Amino Acids 2007; 32: 225-233
Int J Sports Med 2009; 30: 485-488
International society of sports nutrition position stand: caffeine and performance
International society of sports nutrition position stand: caffeine and performance.
[Maca (Lepidium meyenii Walp), a review of its biological properties].
A double-blind, placebo-controlled, multi-dose evaluation of the acute behavioural effects of guaraná in humans.
Scientific Opinion on the substantiation of health claims related to caffeine and increased fat oxidation leading to a reduction in body fat mass, increased energy expenditure leading to a reduction in body weight, increased alertness and increased attention pursuant to Article 13(1) of Regulation (EC) No 1924/2006