Womens Hair, Skin and Nails Formula's (by GNC) ability to improve running performance is rated as 1.15 out of 3. This rating means there is little to no evidence that the product has the ability to deliver on this claim. Using Womens Hair, Skin and Nails Formula to improve running performance will not 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 Womens Hair, Skin and Nails Formula's ability to improve running performance. To view the product's overall rating, visit the product's main page: Womens Hair, Skin and Nails Formula.

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 Womens Hair, Skin and Nails Formula'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 Womens Hair, Skin and Nails Formula's ability to improve running performance. The rating next to the ingredient describes the ingredient's ability to improve running performance. These ratings are averaged together and provide the product's overall ability to deliver on the same claim.

Ingredients Improve Running Performance Rating
Vitamin E 1 out of 3
Phosphorus 1.3 out of 3
Product's Claim Effectiveness Rating 1.15 out of 3

Claim Research Ratings

The research rating describes how well an ingredient's ability to perform a certain claim (such as improve running performance) 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 Running Performance Research Rating
Vitamin E
Phosphorus
Product's Claim Research Rating

References

Title
Vitamin E supplementation does not alter physiological performance at fixed blood lactate concentrations in trained runners
Effects of palm vitamin e supplementation on exercise-induced oxidative stress and endurance performance in the heat
Phosphate supplementation, cardiovascular function, and exercise performance in humans
Effects of phosphate loading on leg power and high intensity treadmill exercise
Effects of phosphate loading on oxygen uptake, ventilatory anaerobic threshold, and run performance