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Home » Supplement Reviews » Pre Workout Reviews » Jacked Factory Pro Series Pre Workout Review

Jacked Factory Pro Series Pre Workout Review

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By Paul Tiller
Last updated May 8, 2025


As an affiliate of various sites, including Amazon Associates, I may earn a commission on qualifying purchases via links in this post at no extra cost to you. See Full Disclosure

Pro-Series Pre is a pre workout supplement from Jacked Factory. Fueled by 6 g L-Citrulline, 3.2 g Beta-Alanine, 1 g Lion’s Mane, 337.5 mg of total caffeine, and 300 mg Alpha GPC, Pro-Series Pre gives you the hyper-focus, smooth energy, and pumps for a workout.

I tried this three different times, and it pleasantly surprised me. It had smooth, long-lasting energy with great focus. I could easily recommend this product for beginners (who can take 337.5 mg of caffeine) without any illicit stims and want a complete package.

Read on for additional details of my experience, the best prices for the Pro-Series Pre pre workout, and a breakdown of its ingredient label.

Related: Best Pre Workout Supplements for Beginners

Pro-Series Pre Workout - Jacked Factory
Pro-Series Pre Workout - Jacked Factory
4.5

Discontinued - see all Jacked Factory pre-workouts at link below.

Jacked Factory's Pro Series Pre Workout is a great "bridge" pre workout between supplements aimed at absolute beginners and more hardcore, stim-heavy offerings.

Featuring a respectable 337 mg of caffeine, PRE delivers clinical doses of a slew of pump and focus ingredients to help you "level up" from basic pre workouts while still getting a clean ingredient label.

Caffeine: 337 mg
Betaine Anhydrous: 2,500 mg
L-Citrulline: 6,000 mg
See All Jacked Factory Pre-Workout
Lift Vault earns a commission if you click this link and make a purchase at no extra cost to you.

Table of Contents

  • 1 Where to Buy Pro Series Pre Workout
  • 2 My Experience
    • 2.1 Effects
    • 2.2 Flavor
  • 3 Ingredients
    • 3.1 L-Citrulline – 6,000 mg
    • 3.2 Beta-Alanine – 3,200 mg
    • 3.3 Betaine Anyhdrous – 2,500 mg per serving
    • 3.4 Lion’s Mane Mushroom Extract – 1,000 mg
    • 3.5 ElevATP ® (Ancient Peat and Apple Fruit Extract) – 300 mg
    • 3.6 PurCaf ® Organic Coffee Bean Extract – 300 mg
    • 3.7 Alpha glycerylphosphorylcholine  – 300 mg
    • 3.8 L-Theanine – 100 mg
    • 3.9 Infinergy (™) Di-Caffeine Malate – 70 mg
    • 3.10 Astragin – 25 mg

Where to Buy Pro Series Pre Workout

You can find Pro Series Pre Workout by Jacked Factory at the following retailers:

  • Jacked Factory

My Experience

I took Pro-Series Pre three times, and each time the energy was smooth and focus amazing.

Effects

Beta-Alanine tingles started after 5-7 minutes and lasted for a good 25 minutes, and were not as intense as expected, maybe a 7.5 or an 8 out of 10 for intensity.

After 15 minutes, smooth energy and a sense of urgency came over me and lasted a good 4 hours. The energy is not hit hard.

A few minutes after the energy began, the focus set in and was solid.

The pumps were decent enough with just 6 g of L-Citrulline, though the focus may have helped the pumps.

There was a slight post-workout mood-elevation.

Noted no adverse side effects.

Flavor

I tried the Watermelon flavor; it was enjoyable and sweet (more candy watermelon over fruit). Noted no bitter or chemical taste—9 out of 10 for flavor. As of now, there are no other flavors available, but if the product becomes more popular Jacked Factory will probably add more flavors.

Scoop Size:

A full serving is 18.5 grams; it comes out to a heaping scoop.

Top View of a Full Serving of Pro Series Pre Workout Jacked Factory
Top View of a Full Serving of Pro Series Pre Workout
Side View of a Full Serving of Pro Series Pre Workout Jacked Factory
Side View of a Full Serving of Pro Series Pre Workout

Ingredients

Below you’ll find the complete ingredient label for Jacked Factory’s Pro-Series Pre Workout, along with a breakdown of each ingredient and its dosage.

L-Citrulline – 6,000 mg

L-Citrulline is one of the most common pre workout ingredients. It has extensive evidence supporting its effects on increasing nitric oxide production, power output, and endurance.

Although most research uses a variation known as L-Citrulline Malate (2:1), anecdotal evidence supports that L-Citrulline delivers much of the same benefit.

When included as pure L-Citrulline, we like to see 4 grams as the dosage, and Pro-Series Pre gives you 50% more.

Beta-Alanine – 3,200 mg

The standard dosage for beta-alanine is 3.2g, which, taken consistently, has been shown to improve muscular endurance by acting as a lactic acid buffer in muscles; this is the ingredient that gives you the “tingles.”

Betaine Anyhdrous – 2,500 mg per serving

Betaine is included to help increase your power output. However, research is pretty inconsistent around this claim. Since the typical range for Betaine is between 1.5 g and upwards of 5 g, the 2.5-gram dose is a perfect amount.

Lion’s Mane Mushroom Extract – 1,000 mg

Lion’s Mane (yamabushitake) is a relatively new nootropic on the scene, with some research supporting anti-anxiety, cognition boosting, and well-being effects.

According to Examine, there has only been a single human study of Lion’s Mane, and the individuals took 1 gram orally three times a day. While that dosage appeared effective, it is unknown if this was optimal.

Pro-Series Pre contains a full 1 g of Lion’s Mane, and there isn’t enough research available to determine if this is an effective dose. More research is needed for this particular ingredient, but it is promising.

Anecdotally, this is a solid dose (depending upon the quality and purity of the ingredient source).

ElevATP ® (Ancient Peat and Apple Fruit Extract) – 300 mg

This is a proprietary blend comprised of ancient peat and apple extract that increases ATP, leading to increases in maximal power output (source).

Pro-Series Pre gives you 300 mg, which is double the clinical dosage of ATP.

PurCaf ® Organic Coffee Bean Extract – 300 mg

From Applied Foods, PurCaf ® is a USDA-certified organic caffeine powder from green coffee beans. Benefits are that it is fully water-soluble, has a more neutral taste profile, and is clear and colorless in solution.

Because PurCaf ® is 95% caffeine, you get a yield of 285 mg of caffeine from this source.

Combined with the 52.5 mg yield of Infinergy (Di-Caffeine Malate), Pro-Series Pre had 337.5 mg of total caffeine.

Alpha glycerylphosphorylcholine  – 300 mg

Alpha glycerylphosphorylcholine is just Alpha GPC, which is used for enhancing cognition and increasing power output. It’s usually a 50% yield of actual GPC.

For athletic purposes, doses tend to range from 300 mg to 600 mg. Doses for reducing the effects of cognitive decline are much higher, around 1,200 mg per day.

It is unknown if this is 300 mg before or after the yield.

L-Theanine – 100 mg

L-Theanine is a sedating amino acid that promotes relaxation and takes the edge off caffeine to prevent a crash. Luckily, the 100 mg included in Pro-Series Pre does not take away from the energy.

Infinergy (™) Di-Caffeine Malate – 70 mg

Di-Caffeine malate is the “extended-release” version of caffeine. Combined with caffeine anhydrous, this helps extend the effects of a pre workout and supports offset crash effects of high caffeine doses.

Pro-Series Pre uses “Infinergy,” which is the patented form of di-caffeine malate. In theory, this should give you more confidence that it is a high-quality ingredient.

Di-Caffeine Malate yields 75% of actual caffeine, meaning you get 52.5 mg of caffeine from this source.

Astragin – 25 mg

AstraGin is a patented ingredient that aids the absorption of pre workout ingredients.

Pro-Series Pre Workout - Jacked Factory
Pro-Series Pre Workout - Jacked Factory
4.5

Discontinued - see all Jacked Factory pre-workouts at link below.

Jacked Factory's Pro Series Pre Workout is a great "bridge" pre workout between supplements aimed at absolute beginners and more hardcore, stim-heavy offerings.

Featuring a respectable 337 mg of caffeine, PRE delivers clinical doses of a slew of pump and focus ingredients to help you "level up" from basic pre workouts while still getting a clean ingredient label.

Caffeine: 337 mg
Betaine Anhydrous: 2,500 mg
L-Citrulline: 6,000 mg
See All Jacked Factory Pre-Workout
Lift Vault earns a commission if you click this link and make a purchase at no extra cost to you.
Jacked Factory Pro Series Pre Workout Review
4.5

Summary

Pro-Series Pre Workout by Jacked Factory is a hyper-focus, smooth energy product with suitable pumps. Powered by 6 g L-Citrulline, 3.2 g Beta-Alanine, 1 g Lion’s Mane, 337 mg of total caffeine, and 300 mg Alpha GPC, Pro-Series Pre provides a smart combination of solid ingredients. I can easily recommend this product for beginners (who can take 337 mg of caffeine) without any illicit stims and want a complete package.

Pros

  • Smooth energy that lasted for 4 hours
  • Amazing focus
  • Open-label
  • Simple label
  • No adverse side effects
  • Good for beginners

Cons

● Only 20 servings

Filed Under: Pre Workout Reviews, Supplement Reviews




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