KJ Labs

KJ Labs Smash AMF Pre Workout – 30 Servings

$49.99
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KJ Labs Smash AMF Pre Workout – 30 Servings

KJ Labs Smash AMF Pre Workout – 30 Servings

$49.99
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KJ Labs Smash AMF Pre Workout (OG) – High Stim Pre Workout

KJ Labs Smash AMF Pre Workout is a high-stimulant pre-workout supplement developed for experienced gym enthusiasts seeking an intense training formula. Known within the hardcore pre-workout community as Smash AMF OG, this product combines caffeine, amino acids, creatine HCl, and additional stimulant ingredients in a comprehensive pre-workout blend.

Each 10g scoop contains 350mg of caffeine anhydrous, 4,000mg of L-citrulline, and 1,500mg of beta-alanine, alongside ingredients associated with energy, focus, and exercise performance.

With 30 servings per container, Smash AMF is positioned in the high-intensity category rather than as an everyday beginner pre-workout.

What Makes Smash AMF Different?

Unlike basic pre-workout powders containing primarily caffeine and flavoring, KJ Labs Smash AMF combines multiple ingredient categories.

The formula includes:

  • 350mg Caffeine Anhydrous: A substantial caffeine dose associated with alertness and reduced perceived exertion.

  • 4,000mg L-Citrulline: An amino acid involved in the body's production of arginine, a precursor to nitric oxide.

  • 1,500mg Beta-Alanine: An ingredient studied for its role in supporting muscle carnosine levels with consistent use.

  • 1,000mg Creatine HCl: A form of creatine included in the product's strength and performance blend.

  • 500mg N-Acetyl L-Tyrosine: A tyrosine derivative included in the focus-oriented portion of the formula.

  • 500mg Taurine: An amino sulfonic acid involved in several normal physiological processes.

  • 500mg Acetyl-L-Carnitine: A carnitine derivative involved in cellular energy metabolism.

These ingredients give Smash AMF a broader composition than caffeine-only pre-workout products.

High-Stimulant Energy and Focus Formula

One of the defining characteristics of Smash AMF OG is its stimulant profile.

The formula lists 350mg caffeine anhydrous per full serving, alongside other stimulant-associated ingredients, including synephrine HCl, hordenine HCl, methyl synephrine HCl, and yohimbine HCl.

Caffeine is widely studied for its effects on alertness and certain aspects of exercise performance. However, combining multiple stimulants can also increase the likelihood of adverse effects, including elevated heart rate, blood pressure, anxiety, and sleep disruption.

Smash AMF is therefore not an appropriate introductory pre-workout for someone unfamiliar with high-caffeine products.

Pump and Performance Ingredients

While the stimulant blend receives considerable attention, Smash AMF also includes several familiar sports nutrition ingredients.

L-Citrulline – 4,000mg

L-citrulline is frequently included in pump-focused pre-workout powders because it participates in the body's nitric oxide pathway. It is commonly studied for its potential relationship to blood flow and exercise performance, although results vary by study and dose.

Beta-Alanine – 1,500mg

Beta-alanine is used in sports nutrition to increase muscle carnosine over time. Research generally evaluates repeated daily intake rather than an immediate effect from a single workout serving.

Creatine HCl – 1,000mg

Creatine supports the phosphocreatine energy system involved in repeated high-intensity muscular activity. The strongest evidence for exercise performance comes from consistent use of creatine monohydrate, generally at higher daily amounts than the creatine HCl included in this formula.

These ingredients round out the product's stimulant-focused profile.

Smash AMF OG Ingredient Profile

The published formula includes additional ingredients beyond its primary amino acid and caffeine components.

These include green tea extract, grape seed extract, L-theanine, naringenin, black pepper extract, and several other compounds.

The product also lists vitamin C, vitamin D3, niacin, vitamin B6, and magnesium carbonate.

For a complete ingredient breakdown, review the Supplement Facts tab and compare the information against your container's physical label.

Who Is Smash AMF Designed For?

KJ Labs Smash AMF occupies the hardcore pre-workout segment and is primarily marketed toward experienced consumers familiar with stimulant-containing exercise supplements.

Its 350mg caffeine content makes it considerably stronger in caffeine alone than many conventional pre-workout formulas. The additional stimulant ingredients are important considerations when assessing the product.

It is not intended for children, pregnant or nursing individuals, or people who have been advised to avoid stimulants. Anyone with cardiovascular conditions, high blood pressure, medication interactions, or other relevant health concerns should consult a qualified healthcare professional and avoid use unless medically cleared.

Do not combine it with other caffeine products or stimulant supplements.

Smash AMF Flavors and Servings

Smash AMF contains 30 servings per container, with a listed serving size of 1 scoop (10g).

Available flavor selections may include Fruit Punch, Berry Fusion, Citrus Punch, Cherry Lemonade, and Grape, depending on current inventory.

Select your preferred flavor using the options above.

Shop KJ Labs Smash AMF at Nutritional Supplement Shop

Explore KJ Labs Smash AMF Pre Workout at Nutritional Supplement Shop, alongside a selection of specialty sports nutrition products.

Browse our Pre-Workout Collection for additional pre-workout powders, or explore the KJ Labs Collection for more products from the brand.

Nutritional Supplement Shop offers U.S. shipping on qualifying orders over $65 and same-day shipping on eligible orders placed before 2 PM Eastern, Monday through Friday.

Frequently Asked Questions

Q: How much caffeine is in KJ Labs Smash AMF?

A: The published Smash AMF OG formula lists 350mg caffeine anhydrous per 10g serving. It also contains additional stimulant-associated ingredients, so the overall stimulant profile should not be assessed by caffeine content alone.

Q: How many servings are in Smash AMF Pre Workout?

A: Each container provides 30 servings based on the manufacturer's listed 10g scoop size.

Q: What is the difference between Smash AMF and a standard pre-workout?

A: Smash AMF combines a high dose of caffeine with additional stimulant ingredients and familiar sports nutrition compounds, including L-citrulline, beta-alanine, and creatine HCl. Conventional pre-workouts may use simpler stimulant profiles or lower caffeine amounts.

Product information is based on published formula details. Ingredient composition and labeling can vary between versions and manufacturing batches. Consult the physical product label before use.

Nutritional Breakdown

Item Amount per serving % Daily Value
Serving Size 1 scoop (10g)
Servings Per Container 30
Vitamin C (As Ascorbic Acid) 350 mg 389%
Vitamin D3 10 mcg 625%
Vitamin B3 (As Niacin) 50 mg 313%
Vitamin B6 (As Pyridoxine HCL) 5 mg 294%
Magnesium Carbonate 50 mg 12%
L-Citrulline 4000 mg **
Beta Alanine 1500 mg **
Creatine HCL 1000 mg **
N-Acetyl L-Tyrosine 500 mg **
Taurine 500 mg **
Acetyl L-Carnitine 500 mg **
Caffeine Anhydrous 350 mg **
Green Tea 98% 50 mg **
Synephrine HCL 50 mg **
Hordenine HCL 50 mg **
Grape Seed Extract 20 mg **
L-Theanine 20 mg **
Methyl Synephrine HCL 10 mg **
Black Pepper Extract (std. to 95% piperine) 10 mg **
N-Methyltyramine HCL 5 mg **
Naringenin 5 mg **
Yohimbine HCL 2.5 mg **
Other Ingredients Natural and Artificial Flavors, Silicon Dioxide
  * Percent daily value based on a 2,000 calorie diet.
  ** Daily Value (DV) not established.
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