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Performance Lab Flex Review

Performance Lab Flex Review

$49.99

Category: Joint Supplement
Key Ingredients: Boswellia, Curcumin, Glucosamine, MSM

Pretty Good

★★★★☆

64 reviews

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Read Our Breakdown Of The Best Joint Supplements View full details

Whilst we’re generally quite positive about labs products, Performance Lab Flex falls foul of the fact that they try to keep their capsules small and their formulas to 2 capsule doses. Unfortunately for our Performance Lab Flex most joint supplements require relatively high volumes to be effective. With a complete dosage of 1000mg it’s not possible to get the ingredients that it does contain in their effective ranges. 

For example, glucosamine in its sulfate form is usually dosed between 1000-3000mg and that’s just one of the ingredients in Performance Lab Flex, and whilst the version used in flex is equivalent to 750mg of glucosamine sulfate it’s still a bit too low to be in the ideal range. Unfortunately, this is a pretty consistent trend through the product. If we compare it to our number one rated joint supplement FlexAgain that uses a blend of ingredients that’s 4000mg. 

There are a couple of positives for our Performance Lab Flex review and that’s the fact it does get a couple of ingredients right and doses Boswellia correctly so it will have some improvements to joint mobility and inflammation. And unlike a lot of it’s competitors it uses Phytodroitin so it is completely vegan [1]. However, if we remove the dietary requirement issue, we can’t see any reason to recommend it over any of the other supplements on our best joint supplements list. 

In short Performance Lab fall foul of their own selling point, and make a supplement that is going to benefit joint health, just less than pretty much all of it’s serious competition.