OJ Pro is a pre-workout supplement manufactured by Performance Science Research. It ranks 185 out of 1,480 pre-workout supplements and earned an overall thumbs-up recommendation based on seven factors including nutrition label transparency, ingredients, dosing, claims, research rating, and ranking.


OJ Pro earned a thumbs-up recommendation. This recommendation is based on the criteria listed below. To earn an overall thumbs-up recommendation, a product must earn a thumbs-up in at least four of the seven areas below. Click on a graded area for an in-depth analysis.

Graded Area Thumb Up or Down
Effectiveness Rating
Ingredient Dosing
Research Rating
Nutrition Label Transparency
Ranking Within Category
Overall Recommendation

Vote Statistics

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Comparison Votes Visitors can also vote on which product works better on comparison pages. Comparison pages are a side-by-side analysis between two supplement products. The votes below illustrate whether visitors prefer OJ Pro, or the products listed in the table below. The number next to the thumb up is how many votes OJ Pro won; the number next to the thumb down is how many votes it lost to the other product.

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Table of Contents

  1. Simple Report
  2. Detailed Report
  3. Ranking Within Category
  4. Summary

OJ Pro Simple Report

  • Product Name: OJ Pro
  • Manufacturer: Performance Science Research
  • Manufacturer Website: Performance Science Research's Homepage
  • Manufacturer Social Media:
  • Supplement Category: Pre-Workout Supplements
  • Serving Size: 1 scoop (40g)
  • Effectiveness Rating: 1.94 out of 3
  • Number of Ingredients: 25
  • Research Rating: 40 (above 60 indicates sufficient research)
  • Nutrition Label Transparency Score: 100%
  • Ranking within Pre-Workout Supplements: 185 out of 1,480 (top third within category)
  • Ranking within all Supplement Products: 727 out of 4,526 (top third of all products)

OJ Pro Detailed Report

The detailed report provides an in-depth analysis of the product's rating. In addition to showing ratings for each area, this report also provides the required criteria for a thumbs-up in each section.

Effectiveness Rating

OJ Pro earned a thumbs-up in this category because its effectiveness rating is 1.94. A product's effectiveness rating must be at least 1.5 to receive a thumbs-up in this area. This effectiveness rating means OJ Pro is made up of a mix of both high and low-quality ingredients and may lead to some positive results.

This category illustrates how well a product works based on what the research says about its ingredients. Researchers conduct studies on supplement ingredients to gauge effectiveness. The database grades products on how effective their ingredients are. The effectiveness rating of supplement products is evaluated on a 3 point scale: 3.0 is the most effective, 1.0 is the least effective.


OJ Pro earned a thumbs-up in this category because it contains 0% extremely and/or moderately effective ingredients. A product must contain at least 75% extremely and/or moderately effective ingredients to receive a thumbs-up in this area.

This category rates a product's ingredient makeup. A product should contain mostly extremely and/or moderately effective ingredients with little or no ineffective ones. The database categorizes ingredients as extremely, moderately, or ineffective based on conclusions from research articles.

OJ Pro contains:

  • unrated ingredients: 4 (the database does not contain information on these ingredients)
  • total ingredients: 25

The following table lists all ingredients found in this product as well as their effectiveness ratings and amounts (if listed).

Ingredient Effectiveness Rating
Histidine 200mg 3 out of 3
Citicoline 500mg 2.8 out of 3
Potassium 200mg 2.7 out of 3
L-Carnitine L-Tartrate 2g 2.4 out of 3
Tryptophan 200mg 2.2 out of 3
Creatine Monohydrate 5g 2 out of 3
Beta Alanine 2g 2 out of 3
L-Theanine 200mg 2 out of 3
Caffeine 150mg 2 out of 3
Branched Chain Amino Acids 5g 1.9 out of 3
Taurine 2g 1.9 out of 3
Sodium 100mg 1.9 out of 3
Ancient Peat And Apple Extract 150mg 1.8 out of 3
Phenylalanine 200mg 1.7 out of 3
Peak O2 2g 1.7 out of 3
Citrulline Malate 8g 1.6 out of 3
Betaine 2.5g 1.6 out of 3
Magnesium 200mg 1.6 out of 3
Phosphorus 200mg 1.5 out of 3
Black Pepper Fruit Extract (Piperine) 5mg 1.4 out of 3
L-Carnitine 2g 1 out of 3
Lysine* not rated
Threonine* not rated
Methionine* not rated
ActiGin* not rated
Product Effectiveness Rating 1.94

* These ingredients are not included in the Supplement Database.

Note: These ingredients are accurate as of August 01, 2020.

Ingredient Articles

Ingredient Dosing

OJ Pro earned a thumbs-down in this category because 46% of its ingredients are dosed within the effective range. Seventy-five (75)% of product's ingredients must be dosed within the effective range to receive a thumbs-up in this area.

This category compares a product's ingredient dosing to effective doses found in research articles and doses used in other products. When researchers study the efficacy of supplement ingredients, they use specific doses. Manufacturers should create products with ingredient doses that fall within established effective ranges.

OJ Pro Dosing Compared to Research

This section is a comparison of ingredient doses found in OJ Pro to amounts used in research articles. The first column contains the name of the ingredient as well as the amount. The second column contains the range of effective doses for that ingredient. Note: not all ingredients in the database contain dosing information; only ingredients with scientific dosing information are included in this analysis.

A green checkmark is shown if the ingredient amount falls within the effective range.

A down arrow is shown if an ingredient amount is lower than the effective range.

Ingredient & Amount Effective Range
Citrulline Malate 8g 8g
Branched Chain Amino Acids 5g 1.22g - 29.2g
Histidine 0.2g 4g
Phenylalanine 0.2g 3g
Creatine Monohydrate 5g 2g - 30g
Beta Alanine 2g 2.4g - 6g
Taurine 2g 6g
Peak O2 2g 1.5g - 12g
L-Carnitine L-Tartrate 2g 2g
Potassium 0.2g 3g
Phosphorus 0.2g 1g
Ancient Peat And Apple Extract 150mg 150mg
Black Pepper Fruit Extract (Piperine) 5mg 60mg

OJ Pro Dosing Compared to Other Products

This section is a comparison of ingredient doses found in OJ Pro to amounts used in other products. The first column displays the ingredient and amount. The second column displays the average amount of the ingredient found across all products in the database. The final column displays the range found across all products in the database.

An orange up or down arrow is shown if the ingredient amount is higher or lower than the average.

An equal sign is shown if the ingredient amount is equal to the average.

Ingredient & Amount Average Range
Citrulline Malate 8g 4.25g 0.08g - 10.3g
Branched Chain Amino Acids 5g 4.74g 0g - 20g
Lysine 2.5g 0.76g 0.03g - 3g
Threonine 1.8g 0.6g 0.01g - 2g
Histidine 0.2g 0.19g 0g - 2g
Tryptophan 0.2g 0.17g 0g - 1.5g
Phenylalanine 0.2g 54.28g 0.01g - 10000g
Methionine 0.1g 0.21g 0g - 1g
Creatine Monohydrate 5g 2.83g 0.19g - 6g
Betaine 2.5g 1.75g 0.03g - 5g
Beta Alanine 2g 2.36g 0g - 6.4g
Taurine 2g 1.1g 0g - 4.24g
Peak O2 2g 1.38g 0.2g - 4g
L-Carnitine L-Tartrate 2g 0.91g 0g - 3g
L-Carnitine 2g 0.72g 0g - 3g
Sodium 0.1g 0.2g 0g - 45g
Potassium 0.2g 0.13g 0g - 2.01g
Magnesium 0.2g 0.12g 0g - 1g
Phosphorus 200mg 101.38mg 2.7mg - 500mg
Citicoline 500mg 215.4mg 10mg - 500mg
L-Theanine 0.2g 0.17g 0g - 1g
Caffeine 150mg 238.3mg 0.28mg - 700mg
Ancient Peat And Apple Extract 150mg 153.88mg 75mg - 400mg
ActiGin 50mg 40.74mg 25mg - 50mg
Black Pepper Fruit Extract (Piperine) 0.01g 0.02g 0g - 5g


OJ Pro earned a thumbs-up in this category because 87% of its claims are rated as either extremely or moderately effective. Seventy-five (75)% of a product's claims must be rated as extremely or moderately effective to receive a thumbs-up in this area.

The product’s effectiveness rating is an overall picture of how well a product does or doesn't work. Individual studies research an ingredient's effects on certain claims. For example: does creatine monohydrate increase strength, or does beta alanine improve running performance?

The Supplement Database compiles the conclusions of these studies, and based on a product's ingredient makeup, calculates how well a product does on various claims. The claims below are organized by effectiveness (extremely, moderately, ineffective).

Research Rating

OJ Pro earned a thumbs-down in this category because its research rating is 40. A product's research rating must be at least 60 to receive a thumbs-up in this area.

A research rating of 40 means there is an insufficient amount of research on the product's ingredients to ensure its effectiveness rating is valid.

The research rating is a measure of how much research has been conducted on a product's ingredient makeup. Manufacturers often rely on ingredients without adequate research backing. They may do this to compete with other products that are already using poorly researched ingredients. They may also only use a very small amount of cherry-picked research as a poor justification to use certain ingredients.

The amount of research contained in the database on a product's ingredients determines its research rating. Products with higher ratings are made up of thoroughly researched ingredients.

Nutrition Label and Ingredient Transparency

OJ Pro earned a thumbs-up in this category because its discloses 100% of its ingredient amounts. A product must disclose all ingredient amounts to receive a thumbs-up in this area.

Nutrition label transparency refers to how many ingredients are listed with amounts on the product label. Many supplement manufacturers hide ingredient amounts under the guise of great-sounding proprietary blends such as "Maximum Muscular Size Enhancer" or "Anabolic Cell Strength Matrix."

When manufacturers use proprietary blends, they can hide ingredient amounts making it difficult for consumers to know whether a product is effective.

OJ Pro contains:

  • total ingredients: 25
  • ingredients with amounts listed: 25
  • ingredients without amounts listed: 0
  • percent of ingredient amounts disclosed: 100%

Product Label

The label below was generated from the information contained in the database about the product's ingredients and amounts. Actual product labels may differ in appearance.

OJ Pro by Performance Science Research Product Label

Ranking Within Category

OJ Pro earned a thumbs-up in this category because it ranks 185 out of 1,480 in the pre-workout supplement category (top third). A product must be ranked in the top two-thirds of its category to receive a thumbs-up in this area.

OJ Pro ranks 185 out of 1,480 in the Pre-Workout Supplements category and 727 out of 4,526 in the entire database. The table below lists comparisons with similarly ranked pre-workout supplement. Click on a link for an in-depth comparison between the two.

Product Comparison
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See more comparisons: Is OJ Pro the best pre-workout supplement?


Graded Area Reason
Effectiveness Rating rating is greater or equal to the required 1.5
Ingredients more than 75% of ingredients are rated as effective
Ingredient Dosing less than 75% of ingredients are dosed properly
Claims more than 75% of claims are rated as effective
Research Rating research rating is lower than the required 60
Nutrition Label Transparency discloses all ingredient amounts on label
Ranking Within Category ranks in the top two thirds of category
Overall Recommendation received a thumbs up in the majority of areas

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