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4 Supplement Reviews is the most comprehensive reviews site on the web! We have tested and reviewed hundreds of products and we have hundreds of reviews submitted by visitors of this site.

Get started reading reviews by visiting our user reviews section, browse the latest reviews posted below, or select one of our featured reviews or review categories from the menu on the right.

Browse Supplement Reviews:

Whey Protein Whey Protein
User reviews of the top whey protein powders.
Fat Burning supplements Fat Burners
Can fat burners help you burn fat faster?
Creatine Powder Creatine
What creatine is best for muscle and size gains?
Testosterone boosters Testosterone
Reviews of natural testosterone boosters.
Nitric Oxide Supplements Nitric Oxide (NO2)
Reviews of NO2, the "pump" supplement.
Protein bars Protein Bars
Learn what protein bars taste the best!
Weight Gainer Powder Weight Gainers
Reviews of products for weight gain.
BCAA Amino Acids Amino Acids
Reviews of pure amino acids supplements.
Casein protein Casein Protein
Casein protein, the slow release protein source.
Vitamins Vitamins & Minerals
Vitamin supplement reviews and opinions.
Meal Replacement supplements Meal Replacements
No time for good food? Swap your meal for a meal replacement supplement!.
 

The Supplement Blog:

x1.jpgXenadrine EFX is one of the most marketed and well-known fat burners available on the market today. Can you benefit from it? We delve into it’s ingredients to see if it can do exactly what it promises.

While marketing tells us what Xenadrine EFX does, we like to go to the core of a supplement — what it contains. So let’s take a look at exactly what is inside each Xenadrine EFX bottle and what each ingredient is known to do.

» Read the full post…

lipo-6.jpgWelcome to our first fat burner review! Today we’re going to be reviewing Lipo 6, by Nutrex. Lipo 6 is one of the most (if not the most) popular fat burning products on the market. The formula has recently be changed after ephedra was banned by the FDA.

In this review we’re going to take a look at what’s in the new formula Lipo 6 and whether it can help burn more fat.

» Read the full post…

promax-protein-bars.jpgOver the next two months I’m going to be reviewing a whole range of protein bars! We’ve tested 20 different protein bars! This week we’ll be reviewing one of the most popular protein bars on the market, the Promax Protein Bar.

In the review I’ll look at taste/texture, price and the ingredients.

» Read the full post…

optimum_zma.jpgZMA is a combination of Zinc Monomethionine Aspartate plus Magnesium Aspartate and vitamin B-6 and is used as a natural product to increase testosterone levels. Today we’re road testing Optimum Nutrition’s ZMA.

This is the first testosterone booster we’ve tested. We thought the best way to test it was to keep diet, training and other supplementation exactly the same and add Optimum Nutrition’s ZMA in for 10 weeks. We would then measure the strength gains at the end of this period and any other positive/negative effects.

» Read the full post…

nlarge2.jpgToday I’m reviewing one of the most popular weight gain supplements on the market, Prolab’s N-Large II. I am not currently using N-Large II, but I have used it in the past with very good results. Let’s take a look at N-Large II in a bit more detail…

» Read the full post…

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