Peri-Rx with Caffeine's (by Barbell Medicine) ability to improve cognitive ability is rated as 2.4 out of 3. This rating means the evidence is mixed on the product's ability to deliver on this claim. While some of the evidence supports its use, other evidence does not. Using Peri-Rx with Caffeine to improve cognitive ability may lead to positive results. This rating is different from the product's overall rating and is based on what peer reviewed journal articles conclude on its ability to perform this one claim. This page contains an indepth analysis on how this claim-rating was calculated.

Note: The ratings on this page only deal with Peri-Rx with Caffeine's ability to improve cognitive ability. To view the product's overall rating, visit the product's main page: Peri-Rx with Caffeine.

Table of Contents

  1. Simple Report
  2. Detailed Report
  3. References

Simple Report

Detailed Report

The detailed report is an in-depth analysis on how Peri-Rx with Caffeine's rating for this particular claim was calculated.

Claim Effectiveness Ratings

Each supplement product is a blend of ingredients. The database uses peer reviewed journal articles to rate the ingredients. These ratings are also used to rate how well products perform overall as well as on individual claims.

The supplement ingredients listed in table below are identified as affecting Peri-Rx with Caffeine's ability to improve cognitive ability. The rating next to the ingredient describes the ingredient's ability to improve cognitive ability. These ratings are averaged together and provide the product's overall ability to deliver on the same claim.

Ingredients Improve Cognitive Ability Rating
Creatine Monohydrate 3 out of 3
Beta Alanine 2 out of 3
Caffeine 2.2 out of 3
Product's Claim Effectiveness Rating 2.4 out of 3

Claim Research Ratings

The research rating describes how well an ingredient's ability to perform a certain claim (such as improve cognitive ability) has been researched. This rating is based on the amount of studies contained in the database on a particular ingredient and claim. Ingredient research ratings are averaged together to from the product's research rating for this specific cliam.

This rating is important because we need to know if there is enough research to make a valid conclusion on a product's worthiness. Ratings above 80 are ideal. Anything below 60 means there is not enoguh research to make a valid conclusion one way or another on a product's ability to deliver on this particular claim.

Ingredients Improve Cognitive Ability Research Rating
Creatine Monohydrate
Beta Alanine
Caffeine
Product's Claim Research Rating

References

Title
Creatine supplementation, sleep deprivation, cortisol, melatonin and behavior
β-alanine supplementation improves tactical performance but not cognitive function in combat soldiers
Caffeine improves physical and cognitive performance during exhaustive exercise
Effects of caffeine, sleep loss, and stress on cognitive performance and mood during U.S. Navy SEAL training. Sea-Air-Land
Caffeine effects on marksmanship during high-stress military training with 72 hour sleep deprivation
Acute caffeine intake before and after fatiguing exercise improves target shooting engagement time
Effect of caffeine on target detection and rifle marksmanship
Caffeine restores engagement speed but not shooting precision following 22 h of active wakefulness
Slow release caffeine and prolonged (64-h) continuous wakefulness: effects on vigilance and cognitive performance
Effect of Caffeine on Attention and Alertness Measured in a Home-Setting, Using Web-Based Cognition Tests
Effects of caffeine on mood and performance: a study of realistic consumption
Effects of caffeine on mood and memory
Effects of repeated doses of caffeine on performance and alertness: new data and secondary analyses
Psychostimulant and other effects of caffeine in 9- to 11-year-old children
Effects of low doses of caffeine on cognitive performance, mood and thirst in low and higher caffeine consumers
Acute effects of caffeine in volunteers with different patterns of regular consumption
Effects of caffeine in non-withdrawn volunteers
Physiological and cognitive responses to caffeine during repeated, high-intensity exercise
The effects of alpha-glycerylphosphorylcholine, caffeine or placebo on markers of mood, cognitive function, power, speed, and agility