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Collections: FEATURED PRODUCTS, Pre Workout Supplements | Pump Products, Pump Products

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Powerful Vaso-Dilation! This product yields EXTREME PUMPS! Take ONLY pre-workout with plenty of water! Contains 400mg of the patented VASO6™!

• Vasodilation
• Increases nitric oxide production
• More efficient blood flow for ATP
production and muscle recovery
• Superior nutrient delivery to muscles
• Antioxidant effect


Take 4 Pills Pre-Workout for PUMPS! Your body craves the boost that you can get with FLEX so order online today to fuel your next workout. Great for those who don’t want to drink a flavored pre-workout.

The much anticipated arrival has finally reached us! FLEX is here!! This is one of the newest editions to the House of Gains product line. Flex combines several key ingredients that maximize vaso-dilation and “pumps” during your workout to increase blood/oxygen flow, enhancing your workouts like no other product on the market! With 6 POWERFUL and synergistic ingredients, you wont believe the workouts you are about to get! Lets breakdown whats all in FLEX- Vaso-Dilator.

What is a vasodilator supplement?

Vasodilation is the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. The process is the opposite of vasoconstriction, which is the narrowing of blood vessels.

When blood vessels dilate, the flow of blood is increased due to a decrease in vascular resistance and increase in cardiac output. Therefore, dilation of arterial blood vessels (mainly the arterioles) decreases blood pressure. The response may be intrinsic (due to local processes in the surrounding tissue) or extrinsic (due to hormones or the nervous system). In addition, the response may be localized to a specific organ (depending on the metabolic needs of a particular tissue, as during strenuous exercise), or it may be systemic (seen throughout the entire systemic circulation).

Endogenous substances and drugs that cause vasodilation are termed vasodilators. Such vasoactivity is necessary for homeostasis (keeping the body running normally).


Whats in FLEX that makes it so powerful?

FLEX is LOADED with nitrates! Inorganic nitrate is present in numerous foodstuffs and is abundant in green leafy vegetables and beetroot. Following ingestion, nitrate is converted in the body to nitrite and stored and circulated in the blood. In conditions of low oxygen availability, nitrite can be converted into nitric oxide, which is known to play a number of important roles in vascular and metabolic control. Dietary nitrate supplementation increases plasma nitrite concentration and reduces resting blood pressure. Intriguingly, nitrate supplementation also reduces the oxygen cost of submaximal exercise and can, in some circumstances, enhance exercise tolerance and performance.

  • FLEX Features 300mg Sodium Nitrate and 1000mg Beet root extract powder! that’s 1300mg of powerful nitrates!

VASO6™increases nitric oxide production. More nitric oxide in the blood stream results in endothelial-dependent relaxation (EDR). This is valuable for delivering more oxygen to muscle for greater ATP production and power, as well as nutrient delivery. What is VASO6™? While most athletes understand the performance and nutrient delivery benefits of increased blood flow, they’ve come to accept the relatively small increase offered by most products in the marketplace. Enter VASO6™ , a proprietary green tea oligomer containing levels of specific vasodilating catechins found within the plant. VASO6™ has become one of the most popular and powerful vasodilation supplements on the market! We at House of Gains are proud to feature this amazing ingredient in our products profile!!!

  • FLEX Features 400mg of VASO6™!!
  • Benefits:
    • Vasodilation
    • Increases nitric oxide production
    • More efficient blood flow for ATP
    production and muscle recovery
    • Superior nutrient delivery to muscles
    • Antioxidant effect

Agmatine, also known as (4-aminobutyl)guanidine, is an aminoguanidine that was discovered in 1910 by Albrecht Kossel. Agmatine is a chemical substance which is naturally created from the chemical arginine. Agmatine has been shown to exert modulatory action at multiple molecular targets, notably: neurotransmitter systems, ion channels, nitric oxide (NO) synthesis and polyamine metabolism and this provides bases for further research into potential applications.

  • FLEX Features 1000mg Agmatine Sulfate! 

Yohimbe is an herbal supplement. It has a long history of use in West African traditional medicine to improve sexual performance. More recently, yohimbe has been sold as a dietary supplement with a wide variety of common uses. These range from treating medical conditions like erectile dysfunction to aiding in weight loss. The supplement is derived from the bark of an evergreen tree found in western and central Africa called the Pausinystalia johimbe.

  • FLEX Features 40mg Yohimbe Bark!

Cayenne Pepper is a type of Capsicum annuum. It is usually a moderately hot chili pepper used to flavor dishes. The capsaicin in cayenne peppers has metabolism-boosting properties. It can also increase the amount of heat your body produces. A side effect of your body heating up is vaso-dilation! Your body does this in response to the heat in order to “cool itself down” by increasing surface area of the blood vessels! This is a natural approach to vasodilation many companies overlook because of cayenne peppers spicy nature. This is why we put it in a capsule form, so you can bypass having to take a mouthful of hot pepper but still get all the benefits!!

  • FLEX Features 600mg of Cayenne Pepper!


*These statements have not been evaluated by the Food and Drug Administration.
This product is not intended to diagnose, treat, cure, or prevent any disease.


Supplements, protein powders, and muscle builders of the best quality is what House of Gains has to offer.