Performance Lab® Flex

Best Joint Supplements

Updated May 25, 2020

Top 3 Choices for Joint Paint Supplements

Best Overall
Performance Lab review
Performance Lab® Flex
  • Made for all lifestyles
  • High quality ingredients
  • Vegetarian friendly
Best Value
Best Joint Supplements
Ancestral Supplements Grass Fed "Living" Collagen
  • Pasture-raised
  • Grass-fed
  • 100% additive-free
Premium Choice
Best Supplements for Joints
Invite Health Joint Health Program
  • Non-GMO
  • Contains UC-II®
  • Easy to absorb
Performance Lab® Flex

Performance Lab® Flex

Flex by Performance Lab is the ultimate supplement for enhancing flexibility and relieving joint pain. Flex promotes joint lubrication and shock absorption as well as supports ligaments, tendons, and cartilage. 

Flex enables its users to stay limber, work comfortably, and boost their athletic performance through the use of soothing botanicals and vegan-friendly ingredients which provide natural joint support. Its key ingredients include Après Flex® Boswellia Serrata, CurcuWIN® Curcumin, Glucosamine Sulfate 2KCI, Mythocondro® Chondroitin Sulfate, OptiMSM® Methylsulfonylmethane, and NutriGenesis® Strontium.

Flex provides support in the following areas:

  • Protection 
  • Comfort
  • Lubrication
  • Resilience
  • Shock Absorption
  • Bone Strength

About Performance Lab 

Performance Lab offers a wide variety of training and nutritional supplements which aid human performance and promote all-around health.  Its supplements provide support for better sleep, vision, cognition, and energy as well as enhance muscle growth, strength, endurance, and training intensity.

Performance Lab uses premier nutrition technologies in order to revolutionize healthy performance nutrition as well as to provide the highest quality performance supplements available on the market. This company provides one of the world’s most sophisticated nutritional supplement systems for optimizing daily performance and long-range health.

Unique Features

Better Absorption than Competing Products

Performance Lab has utilized advanced nutritional technology to achieve better absorption in several of its ingredients. AprèsFlex® achieves 52% greater absorption than standard Boswellia and CurcuWIN®  is 46 times more absorbable than typical curcumin products.

Vegan Glucosamine and Vegetarian Chondroitin

Glucosamine is generally sourced from shellfish and chondroitin usually has animal-based origins. Performance Lab designed Flex to be made from non-animal products with its glucosamine made from corn and its chondroitin being vegetarian-based. 

Designed for All Lifestyle-Related Joint Concerns

Most joint relief supplements are designed for aging adults who suffer from chronic issues. Flex, however, is designed to support joint health in adults from all health backgrounds. Flex can be taken for a wide range of joint health concerns such as strength and endurance training, reducing ergonomic pain, and allowing older adults to remain active and healthy.

  • Made for all lifestyles

  • High quality ingredients

  • Vegetarian friendly

  • Somewhat low dosages

  • Only available at their website

  • Ingredients may interact with specific medications

Invite Health Joint Health Program

Best Supplements for Joints

Joint Health Program by Invite Health contains two major supplements:  Cartilage HX® and Bio-Curcumin® with 5-Loxin®. Cartilage Hx® contains UC-II® which is an undenatured Type II collagen that supports joint health, comfort, mobility, and flexibility. Bio-Curcumin® with 5-Loxin® supports the body’s everyday inflammatory response and reduces aches and pains associated with the aging process.

Invite® Health is a vitamin and supplement company that’s built upon the mission of helping people to integrate vitamins into their lives as well as celebrate everyone’s vision of wellness.  Invite Health has been a lead innovator in the nutritional supplement industry for over 20 years and offers products which range from multivitamins and superfoods to beauty products, anti-aging supplements, and more.

  • Non-GMO and made following cGMP

  • Made using Vcaps® technology

  • Contains potent ingredients

  • Limited Servings

  • Possible digestive issues

  • Not vegetarian-friendly

Grass Fed Living Collagen by Ancestral Supplements

Best Joint Supplements

Grass Fed Living Collagen by Ancestral Supplements provides customers with a collagen supplement that retains ancestral properties in a whole-food matrix. This product is derived from pasture raised cows in New Zealand and contains tracheal collagen, scapula collagen, bioactive growth factors, chondroitin sulfates, and proteoglycans.

Grass Fed Living Collagen is free of hormones, pesticides, GMOs, fillers, and flow agents. Additionally, its third party tested for purity and contains no allergens.

Adults should take six capsules daily or as directed by a healthcare professional. Each capsule contains 500 mg of freeze-dried New Zealand grass-fed cartilage.

Ancestral Supplements was formed in an effort to help people achieve ancestral living practices through modifying their dietary choices. The company is based upon the belief of consuming animals nose-to-tail and that consuming the internal organs of animals promotes better health and vitality.

Ancestral Supplements offers grass-fed, pasture-raised beef organs in capsule-form which help provide substantial amounts of B-vitamins, protein, and iron. Its supplements provide better energy, greater alertness, and improved general health.


  • 500 mg of cartilage per capsule

  • Pasture-raised and grass-fed

  • 100% additive-free

  • 6 capsules per day

  • No specific recommendations for use or timing

  • Not vegetarian/vegan friendly

Glucosamine Chondroitin Turmeric MSM Boswellia

best joint supplements

Glucosamine is good for joint health. It’s naturally produced in the body alongside chondroitin in the maintenance of ligaments, cartilage, and rejuvenation of the joint fluid.

If the body isn’t getting enough of glucosamine and chondroitin needed, then problem arises at the joint and in several other functions where glucosamine is needed.

So it only makes sense to supplements its supply when there is a problem in the joint area of the body.

Vimerson Health’s Joint supplements is composed of Glucosamine, Chondroitin, Turmeric, MSM and Boswellia as the major ingredient.

The addition of turmeric and MSM gives additional antioxidant and anti-inflammatory benefits that comes from the herbs.

This supplements has been shown to help greatly in general joint health, it also boost mobility and flexibility of the joint.

If you suffer from swollen or sore knee joint, then this is a good option to go for, considering the presence of MSM which is known to lower inflammation of tissues.

It’s GMP certified product; which means they’re product in a factory that adheres to pharmaceutical standards. The ingredient is gluten free with no genetic modified organism, making is suitable for vegan.

If you’re allergic to shellfish, the product isn’t for you as the glucosamine content is derived from shellfish.

Aside that; it’s a good product for alleviating knee pain.

Zenwise Health Advanced Strength

With age comes depletion of glucosamine; it’s a normal condition associated with aging, this increases the need for supplementation of glucosamine in other to maintain a healthy joint function.

The major component of this supplement is glucosamine; making it perfect for aged people suffering from knee pain with the need to supplement their glucosamine. Consecutive use of this supplement has proven to be very effective in alleviating knee pain that arises from old age depletion of glucosamine.

While the supplement works over a long period of time in compounding effect to replenish the loss of glucosamine, the chondroitin works as an anti-inflammatory component to alleviate the immediate pain, soreness and aches sensation. This is important to keep you going about the regular daily activity while the supplement takes its time to provide a last solution.

Often are times when the main cause of knee pain isn’t just chondroitin. Sometimes knee pain or arthritis is associated with weak supporting tissues and ligament on the joint, methylsulfonylmethan has been shown to play a vital role in strengthening the supporting tissues of the joint.

The major difference between this supplement and the previously reviewed one is that, it goes ahead and add hyaluronic acid into it’s component. Hyaluronic acid is important in the production of joint fluid that provides absorption from movement shock at the joint region.

The product is greatly praised for reducing soreness and swellings around the joint, it also helps in reducing joint stiffness and improved mobility of the joint. Allowing weight distribution over the joint after usage for a while.

It’s also worthy of note that the product is manufactured in a GMP certified factory.

This is the only supplement on this list that contains the four major ingredient that is associated with improving joint health; glucosamine, chondroitin, hyaluronic acid and MSM.

On the negative end, the capsules are a little bit large as compared to other supplements; if you’re not used to taking large pills, it might take time to get used to.


Supplements work, but you need to know what you’re dealing with before you go ahead and buy a particular product.

If you don’t know the main cause of the problem, then getting one of the recommended joint supplements will go a long way in improve your general joint health.

If you however know the cause; take for instance old age resulting into arthritis, then loading up on glucosamine is a good idea, and you would want to go for supplement that has glucosamine as it’s main component.

It’s also important to note that, herbal supplements takes time before their effect kicks in, you might have to take them for two (2) to three (3) weeks before you begin to see significant improvement.

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