• Pre Workout
  • Woman lifting a large tire in a gym setting
  • Pre Workout
  • Pre Workout
  • Pre Workout
  • Supplement facts label with nutritional information on a white background
  • Pre Workout
  • Woman lifting a large tire in a gym setting
  • Pre Workout
  • Pre Workout
  • Pre Workout
  • Supplement facts label with nutritional information on a white background
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Pre Workout

Purpose Built Pre Workout for Athletes. Supports power output and improves focus, with no crash or jitters.†

  • 6 g L-Citrulline
  • 2 g Taurine
  • 410 mg Electrolytes
$49.99
$49.99
Sale Sold out

Free USA over $99 + 30-Day Money Back Guarantee

Description

Fathom Nutrition Pre-Workout is a research backed, fully transparent pre-workout formula built for athletes who train hard. No proprietary blends. No artificial flavors, colors, or sweeteners. 

Clean, Sustained Energy

150mg of natural caffeine sourced from organic green coffee bean extract delivers clean energy without jitters or crashes. Paired with Taurine and L-Tyrosine to support focus.†

Muscular Endurance

Beta-Alanine supports muscle carnosine levels to help maintain high intensity output during demanding training sessions.†

Electrolyte Support

A complete electrolyte profile with Sodium from Sea Salt and sodium citrate, Potassium, and Magnesium Bisglycinate supports hydration and normal muscle function throughout training.†

Boost Energy + Endurance: Power through your workouts with sustained energy and improved stamina.

Heighten Mental Focus: Stay sharp and locked in from start to finish.

Third-Party Tested + Banned Substance Free: Certified for quality and safety.

Suitable for Vegan Diets: Formulated to fit a variety of lifestyles.

Mix 1 scoop with 16 ounces of water and drink 30 minutes before training.

• L-Citrulline
• Beta-Alanine
• Taurine
• L-Tyrosine
• Caffeine
• Sodium (as Sea Salt and sodium citrate)
• Magnesium (as magnesium bisglycinate)
• Potassium (as potassium citrate)

  • CLEAN ENERGY & FOCUS

    Made from the purest natural caffeine sources, Fathom Nutrition Pre Workout will help fuel your training intensity without any of the negative jitters or uncomfortable crashes that come with other training support products on the market.

  • STRENGTH & ENDURANCE

    L-citrulline is a well-known nitric oxide booster that enhances blood flow, reduces muscle fatigue, and boosts endurance. Numerous studies indicate L-Citrulline reduced muscle soreness.
  • Athlete running in a gym with 'HYRO' branding visible Athlete running in a gym with 'HYRO' branding visible

    REPLENISH & REHYDRATE

    Electrolytes are essential during workouts. Fathom Nutrition Pre Workout contains a complete profile of electrolytes to help support athletic performance. Sodium, Potassium, and Magnesium, in their most bioavailable forms.

Product You Can Trust

  • Gold beaker icon on a beige background
    3rd Party Tested

    All Fathom Nutrition supplements are third party tested for banned substances, quality standards, and label accuracy. Learn more

  • Shield icon with a check mark on a beige background
    Clinically Dosed

    Fathom Nutrition exclusively formulates products with evidence based, clinically dosed ingredients. No proprietary blends. Learn more

  • Gold leaf symbol on a beige background
    Nothing Artificial

    No artificial colors. No artificial flavors. No artificial sweeteners. No junk. No fillers. All backed by science and results. Learn more

Key Ingredients

Pre Workout Pre Workout

L-Citrulline

L-Citrulline supplementation boosts endogenous L-arginine levels and, subsequently, supports blood flow via a chemical called nitric oxide (NO).

Natural Caffeine

Natural caffeine from organic green coffee beans to provide sustained energy.

Beta-Alanine

Beta-alanine is an amino acid that supports muscular endurance and performance by increasing muscle carnosine levels.

L-Tyrosine

L-tyrosine is a key amino acid that supports neurotransmitter production, helping maintain focus and motivation.

Taurine

Taurine is an amino acid, essential to nervous system function and helps prevent fatigue during intense exercise.

Third Party Testing

We believe trust is earned through transparency. That’s why we provide full access to our third-party test results, so you can feel confident in what you’re taking.

cGMP Facility: ✔

Third Party Tested: ✔

Certificates of Analysis: ✔

Ingredient Verification Tests: ✔

View Test Results

Energy Without A Crash

Fathom Nutrition Pre Workout contains clinically-studied ingredients that can be taken prior to any training session to help fuel your workout with clean, non-jittery energy, and a balanced section of key electrolytes including sodium, potassium, and magnesium to support hydration along the way.†

Fathom Nutrition Pre Workout Is For:

  • People who want to avoid artificial ingredients
  • Hyrox, Crossfit, functional, & endurance athletes
  • Gym goers & gravity sports athletes
  • Ambitious, busy professionals
  • People with family and community commitments
  • Anyone who doesn't like junk in their supplements!

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FAQs

We're a new brand, and we know trust is earned. That's why every batch is third-party tested, we publish exact ingredient doses (no proprietary blends), and we offer a full 30-day money-back guarantee. We'd rather let the product speak for itself.

Fathom was built for people who live deliberately. People who train with intention and view discipline not as punishment but as freedom. Fathom is more than a brand. It is a signal. A marker of a mindset. A commitment to never negotiate with your own potential.

Applicable Fathom Nutrition products are tested and certified by 3rd party labs to verify they do no contain unsafe levels of contaminants, prohibited substances, or masking agents, and that what is on the label matches what is in the product. Consumers can feel safe knowing that Fathom Nutrition products have been tested to the highest standards, at a GMP-certified facility, and audited regularly.

Fathom Nutrition Pre-Workout is a research backed, fully transparent pre-workout formula built for athletes who train hard. No proprietary blends. No artificial flavors, colors, or sweeteners. 

Clean, Sustained Energy

150mg of natural caffeine sourced from organic green coffee bean extract delivers clean energy without jitters or crashes. Paired with Taurine and L-Tyrosine to support focus.†

Muscular Endurance

Beta-Alanine supports muscle carnosine levels to help maintain high intensity output during demanding training sessions.†

Electrolyte Support

A complete electrolyte profile with Sodium from Sea Salt and sodium citrate, Potassium, and Magnesium Bisglycinate supports hydration and normal muscle function throughout training.†

Mix 1 scoop with 16 ounces of water and drink 30 minutes before training.

Absolutely. All Fathom Nutrition products contain no artificial colors, no artificial flavors, and no artificial sweeteners.

All Fathom Nutrition products are tested and certified by 3rd party labs to verify they do no contain unsafe levels of contaminants, prohibited substances, or masking agents, and that what is on the label matches what is in the product. Consumers can feel safe knowing that Fathom Nutrition products have been tested to the highest standards, at a GMP-certified facility, and audited regularly.

All Fathom Nutrition supplements are manufactured in GMP-certified facilities and tested and certified by the NSF 455 program to verify the quantity of the dietary ingredients declared on the product label. This program uses the same rigorous criteria as NSF/ANSI 455 to ensure a safer product reaches the consumer.

We have a 30-day return policy, which means you have 30 days after ordering your item to request a return. 

For more information about shipping and returns, view our policies here.

Of course! You can cancel your subscription at any time.

Warning: Consuming this product can expose you to chemicals included Lead which is known to the State of California to cause birth defects or other reproductive harm. For more information go to:

https://www.p65warnings.ca.gov/fact-sheets/foods

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