OmegaXL Review (2026): Does This Joint Support Supplement Really Work?

Overview

Great HealthWorks is a health and wellness company established in Florida, in 2003, which creates OmegaXL, a joint and muscle health supplement. It is sold as a softgel supplement to be taken daily to help maintain joint comfort, reduce stiffness, enhance flexibility and movement. The cost of 1 bottle is $65.95 and contains 90 softgels.

However, what’s really in OmegaXL? What is the amount of green-lipped mussel oil in each capsule? Has the entire formula, OmegaXL, been used in human clinical trials? Then, how will consumers be able to evaluate its joint health claims if the label does not indicate the amounts for the individual ingredients in its proprietary blend of 300 mg?

Also, a regulatory point of interest. The U.S. Food and Drug Administration (FDA) issued a warning letter in June 2021 to Great HealthWorks regarding disease claims for its products, including OmegaXL. This raises the question of how the benefits of the supplement are being promoted and if they have enough clinical evidence to back up the promotion.

Let’s explore the ingredients, transparency, scientific evidence, marketing claims, customer feedback and safety issues of OmegaXL vs. other popular joint-support supplements such as Joint XL Plus and WOWMD® Joint Support.

OmegaXL Review – Health Insiders Images

OmegaXL Ingredient Analysis

OmegaXL is a marine based joint support supplement formulated to support the comfort, flexibility, mobility and healthy inflammatory response of joints. It’s made from the main ingredients of New Zealand green-lipped mussels.

A proprietary blend of 300mg, per 2 softgels, is listed on the label as follows:

• The extract from green-lipped mussel, PCSO-524.
• Extra-Virgin Olive Oil
• Pure Olive Oil
• Vitamin E (d-alpha Tocopherol)

The manufacturer does not indicate the daily dose of ingredients in the proprietary formula, but recommends four softgels daily. This makes it difficult to make comparisons to the dosage of OmegaXL when compared to that used in published clinical studies.

The main ingredient is Green-Lipped Mussel Oil Extract (PCSO-524). It contains omega-3 fatty acids including EPA and DHA, and other marine lipids which are being studied for their anti-inflammatory and joint health benefits. A clinical study published in Marine Drugs was done on the comparison of PCSO-524 and fish oil in patients with OA.^[1] The PCSO-524 participants reported a decrease in joint pain and an improvement in their physical function. The study was not conducted on a placebo group, however, so it was hard to distinguish the effects of the supplement alone.

Extra-Virgin Olive Oil is rich in good monounsaturated fats and antioxidants, such as oleocanthal, which has been studied for anti-inflammatory effects. The findings have been published in the journal Current Pharmaceutical Design, and they suggest that some of the chemicals found in virgin olive oil could impact inflammatory pathways.^[2] While the results are promising, the exact effect of the olive oil on joint comfort will not be known, because OmegaXL does not state the amount of olive oil.

The Pure Olive Oil contains extra monounsaturated fatty acids, namely oleic acid. These fats are typically linked to cardiovascular and overall well-being. However, there is little direct evidence that small amounts of refined olive oil (as a supplement) can be a benefit to reduce pain and function of the joints.

Vitamin E is an antioxidant which may help to protect against oxidative damage and may support a healthy immune system. In the review published in Sultan Qaboos University Medical Journal, its antioxidant properties and importance in biological systems are explained.^[3] Review does not definitively confirm, however, Vitamin E’s effectiveness in the direct treatment of joint pain.

The main limitation is dose transparency. OmegaXL also doesn’t disclose the exact dose of any single ingredient in its formula, and the consumer cannot determine the amount of any single ingredient, or even compare it easily with clinical studies.

Scientific Evidence

There is an important difference between research on OmegaXL and research on the individual ingredients listed in its formula.

There is human clinical research supporting the potential benefits of Green-Lipped Mussel Oil (PCSO-524) for joint discomfort and mobility. Omega-3 fatty acids have also been studied for their effects on inflammatory joint conditions. Olive Oil and Vitamin E have research supporting their antioxidant properties.

However, the available studies do not establish that every claimed benefit of the complete OmegaXL formula has been clinically proven.

That means results from studies on individual ingredients cannot automatically be applied to OmegaXL.

Several factors can influence how an ingredient or supplement performs, including:

• Ingredient amount
• Concentration of EPA and DHA
• Type of fatty acid extract
• Extract standardization
• Length of use
• Combination with other ingredients
• Age and general health
• Medication use
• Existing joint conditions
• Exercise, diet, and overall lifestyle

Green-Lipped Mussel Oil (PCSO-524) is a good example. It has marine fatty acids which have been studied for their effects on joint inflammation and discomfort. In a clinical trial published in Marine Drugs, researchers compared PCSO-524 to fish oil in individuals with osteoarthritis.^[1] Participants who were given PCSO-524 experienced physical function and joint pain improvements.

The study was not conducted with a placebo group though, making it hard to decide how much of the improvement was due to the extract itself.

Due to the lack of clarity on the amount of PCSO-524 used in the proprietary blend with omegaXL, a direct comparison to the amount of PCSO-524 found in published clinical studies is difficult.

Further, encouraging experimental results have been achieved with green-lipped mussel oil. A study published in 2021 in the journal Nutrients found improvements in inflammatory activity and pain-related responses in experimental osteoarthritis.^[4] The results of this study suggest additional research, but they do not prove the same benefits in humans.

Omega-3 fats have also been examined regarding joint well-being. In a 2012 study, a meta-analysis was performed in the field of people with rheumatoid arthritis, and it was found that the omega-3 supplements were beneficial to various symptoms of the joint.^[5] These two conditions – rheumatoid arthritis and osteoarthritis – are different, however and the results of one cannot be automatically transferred to the other.

Also, it’s important to note that OmegaXL has a history of regulation. In June 2021, FDA sent a warning letter to Great HealthWorks regarding disease claims made in connection with the OmegaXL and other products.^[6]

This warning should be put into perspective. A warning letter issued by the FDA for claims does not necessarily imply that the product is unsafe. It does, however, emphasize the need to differentiate health claims that are advertised from those with adequate clinical evidence.

To sum up, there is a moderate scientific basis for the claim of joint comfort and mobility in OmegaXL. Some studies, however, are not so strong in their evidence and others are based on experimental studies and not large scale human clinical trials.

OmegaXL is challenging to compare with published research due to lack of individual active ingredient dose information and a need for more robust, independent, placebo-controlled trials to confirm the benefits of the full formula.

Marketing Claims That Need More Context

“Supports Joint Comfort and Mobility”

One of the primary advantages of OmegaXL is the enhanced joint comfort and mobility it provides.

The supplement includes Green-Lipped Mussel Oil (PCSO-524), a source of marine fatty acids that may help with a healthy inflammatory response.

In some human clinical trials with PCSO-524, osteoarthritis-related pain, stiffness and physical function improved. This is a good scientific basis for the claim.

OmegaXL, however, does not list the quantity of PCSO-524 in its proprietary formula and it is difficult to compare it with clinical doses.

Customer experiences also vary. Some report easier movement, while others notice limited changes.

Therefore, OmegaXL may support joint comfort, but consistent pain relief has not been established for every user.

“Helps Reduce Inflammation”

OmegaXL is promoted as a supplement that supports a healthy inflammatory response.

Inflammation is a natural process that helps the body respond to injury and repair tissues. However, persistent inflammation can contribute to discomfort in certain joint conditions.

Green-Lipped Mussel Oil contains marine fatty acids that have been investigated for their potential anti-inflammatory properties.

Research on omega-3 fatty acids provides additional support for this biological mechanism.

However, evidence of reduced inflammatory activity in laboratory studies does not automatically establish meaningful benefits in humans.

OmegaXL also does not disclose its individual EPA and DHA quantities, making direct comparisons with clinical research difficult.

The claim has a reasonable ingredient-level basis, but more controlled studies of the finished formula are needed.

“Supports Muscle Recovery”

OmegaXL is also marketed for muscle comfort and physical recovery.

Muscle soreness can occur after exercise because of physical exertion, unfamiliar movements, and temporary inflammatory responses.

Some research suggests that marine omega-3 fatty acids may help support muscle recovery and reduce exercise-related soreness.

This provides a possible explanation for OmegaXL’s muscle health claims.

However, the exact amounts of EPA and DHA in OmegaXL are not separately disclosed.

Studies involving conventional fish oil also cannot automatically establish the same benefits for green-lipped mussel oil.

We did not identify strong controlled human evidence demonstrating that the finished OmegaXL formula consistently improves muscle recovery.

Therefore, muscle recovery remains a potential benefit rather than a clinically established outcome.

“Works Better Than Regular Fish Oil”

OmegaXL is marketed as an alternative to the regular use of fish oil supplements.

While regular fish oil products highlight EPA and DHA, its primary ingredient, PCSO-524, includes a variety of kinds of marine fatty acids.

PCSO-524 was found to improve the joint-related outcomes when compared with fish oil in a clinical study that was published in Marine Drugs in people with osteoarthritis.^[1]

However, the study did not have a placebo group, and variations in quantities of fatty acids make it difficult to draw more general conclusions.

OmegaXL does not always have all these different fatty acids more effectively.

Further independent, head-to-head tests are required to assert that OmegaXL is consistently superior to regular fish oil in promoting joint health.

“Small and Easy to Swallow”

OmegaXL claims to have softgels that are easy to swallow and small.

This could be beneficial for people who have trouble swallowing capsules or who find the capsules too big.

The manufacturer also claims that the product is free from a fishy aftertaste compared to some of the conventional fish oil supplements.

These characteristics could be beneficial for convenience and ease of daily supplementation.

But, swallowing and digestion may be different for each person.

However, some people may still burp or feel a little uncomfortable in their stomach.

While the small capsule size is convenient, it doesn’t mean it has better joint health benefits.

“Safe and Natural”

OmegaXL is formulated to be a natural, drug-free joint and muscle health supplement.

Many people can handle its formula with its ingredients of Green-Lipped Mussel Oil, Olive Oil and Vitamin E.

But natural ingredients can trigger side effects, too.

Side effects may include nausea, bloating, stomach discomfort, burping, diarrhea or constipation.

But shellfish allergies are also a concern: OmegaXL also has mussel-derived oil.

People who are shellfish allergic, have medical conditions or are taking prescribed medicines, including blood-thinning drugs should seek medical advice before use.

Dosage, allergies, medications and health may be factors in individual tolerance.

So, OmegaXL can be taken by many without any major side effects but it is not to say it is completely safe.

Our Verdict on the Marketing Claims

OmegaXL contains a 300 mg proprietary blend of Green-Lipped Mussel Oil Extract (PCSO-524), Extra-Virgin Olive Oil, Pure Olive Oil, and Vitamin E, designed to support joint comfort, flexibility, mobility, and a healthy inflammatory response.

Some scientists do have some evidence to support parts of the formula. The human clinical studies for Green-Lipped Mussel Oil include osteoarthritis related joint discomfort and mobility. Also studied for antioxidant and anti-inflammatory properties are Olive Oil and Vitamin E.

The challenge is when these results are compared to other health claims offered for OmegaXL.

Although some clinical studies have examined PCSO-524, the available evidence does not establish every advertised benefit of the finished OmegaXL formula. Additionally, the individual amounts of Green-Lipped Mussel Oil, Olive Oil, Vitamin E, EPA, and DHA are not disclosed within the 300 mg proprietary blend.

Claims about joint comfort, flexibility, mobility, and normal inflammatory support have a reasonable ingredient-level scientific basis.

However, stronger claims involving significant pain relief, cartilage repair, improved muscle recovery, and consistent results require more direct clinical evidence.

There is also a regulatory concern. The FDA issued a warning letter to Great HealthWorks in June 2021 about claims related to a disease. This is a reminder to back up product claims with scientific data.

The evaluation of OmegaXL would be more possible if the manufacturer would provide the quantities of each of the ingredients and more independent, placebo-controlled human studies of the finished formula, and on its long-term effects.

OmegaXL Vs. Popular Joint Support Supplements

Joint XL Plus

Joint XL Plus is designed to help maintain joint comfort, joint health, flexibility and mobility throughout the day. It has a wider range of ingredients that support the joints, including Glucosamine Sulfate, Chondroitin Sulfate, Boswellia, Turmeric, MSM, Quercetin, Methionine, and Bromelain.

OmegaXL is a different solution. It’s formulated with a proprietary blend of 300 mg of Green-Lipped Mussel Oil (PCSO-524), Olive Oil and Vitamin E. Its formula is primarily targeted at marine fatty acids that can help support joint comfort and healthy inflammatory response.

Variety of ingredients and transparency of the formula are the biggest differences.

Joint XL Plus contains Glucosamine and Chondroitin, researched for symptoms associated with osteoarthritis, and Boswellia and Turmeric, which have research to support their ability to help maintain joint health.

OmegaXL reports the total amount of proprietary blend, but does not provide the percentage of the individual ingredients, which makes percentage comparisons with clinical research studies difficult.

Joint XL Plus also offers more details about its ingredients on its website, but the actual dosages should be checked with the current label on the supplement.

Overall, Joint XL Plus appears to have a more complete spectrum of joint-support ingredients, which makes it an appealing choice for those who want more ingredients that work on the joints instead of the formula of Joint XL, which is based on marine oil.

Winner: Joint XL Plus

WOWMD® Joint Support

WOWMD® Joint Support is a complete formula with MSM, GlucosaGreen® Plant Based Glucosamine, Turmeric, Boswellia Serrata, White Willow Bark, Hyaluronic Acid, and Black Pepper Extract. It is formulated for joint comfort, cartilage health, flexibility, mobility and normal function of the joints.

OmegaXL, a proprietary formula from the Department of Pharmacology at the University of Carolina, uses 300 mg of Green-Lipped Mussel Oil (PCSO-524), Olive Oil and Vitamin E. Its formula centers primarily on marine fatty acids which could help the comfort of the joints, a healthy inflammatory response.

The major difference is ingredient type and transparency of the formula. It is difficult to compare the amounts of individual ingredients in OmegaXL with published clinical research because OmegaXL does not list the amounts of individual ingredients.

WOWMD® Joint Support is a blend of Glucosamine and MSM for joint and connective tissue support and Turmeric and Boswellia, which have been researched for joint discomfort.

Additionally, WOWMD® markets third party laboratory testing and a 60-day money back guarantee for first-time purchases of the single bottle product. It is recommended to be taken at a dose of two capsules a day, whereas OmegaXL started with four softgels.

The ingredients in both supplements have scientific research that suggests they may provide benefits, but in isolation, scientific studies of the ingredients cannot offer proof of the efficacy of either ready-to-use formula.

Overall, WOWMD® Joint Support benefits from a wider range of ingredients, ease of use, and the company claims that it is quality-tested which sets it apart from OmegaXL.

Winner: WOWMD® Joint Support

Pros and Cons of OmegaXL

• Contains PCSO-524, a patented Green-Lipped Mussel Oil Extract studied for joint health
• Provides marine fatty acids, including omega-3 fatty acids EPA and DHA
• Includes Green-Lipped Mussel Oil, Olive Oil, and Vitamin E
• Contains ingredients studied for joint comfort, flexibility, mobility, and antioxidant activity
• Some human clinical studies have reported improvements in osteoarthritis-related joint discomfort
• Provides the total proprietary blend amount of 300 mg per two softgels
• Some customers report improved joint comfort and easier movement

• The individual amounts of ingredients are not clearly disclosed
• Four ingredients share the same 300 mg proprietary blend, making comparisons with clinical study doses difficult
• EPA and DHA quantities are not separately listed
• More independent, placebo-controlled human studies are needed to establish consistent benefits
• Research on individual ingredients does not guarantee the finished supplement will produce the same results
• Claims involving significant pain relief, cartilage repair, and muscle recovery need stronger clinical evidence
• A 90-softgel bottle costs $65.95, which may be expensive for long-term use
• The initial four-softgel daily serving means one bottle lasts approximately 22 days
• Contains mussel-derived oil, requiring caution for people with shellfish allergies
• Some users report nausea, burping, bloating, and stomach discomfort
• Customer feedback includes mixed results and subscription cancellation concerns
• The manufacturer received an FDA warning letter in 2021 concerning certain disease-related marketing claims
• Return-policy terms should be verified, as different guarantee periods have appeared in product information

Where To Buy OmegaXL?

OmegaXL is available online through the official website and third-party sites like Amazon. Always compare current listings, seller details, and shipping charges before ordering.

Shipping costs may also vary depending on location and order value.

Final Verdict

OmegaXL is a marine based joint support supplement made from ingredients of Green-Lipped Mussel Oil (PCSO-524), Olive Oil and Vitamin E. It is intended to help maintain joint flexibility, mobility, comfort and a good inflammatory response.

Certain clinical research indicates that green-lipped mussel oil can be beneficial in reducing discomfort associated with OA. But, OmegaXL proprietary blend of 300 mg does not state the individual amounts of ingredients present making comparisons with clinical research difficult.

But there are differences among customers, too, and its 90 softgels for $65.95 can cost you quite a bit to sustain long term.

Joint XL Plus is a more comprehensive formulation with Glucosamine, Chondroitin, Turmeric and Boswellia.

Likewise, WOWMD® Joint Support offers a combination of plant-based Glucosamine, MSM, Turmeric, Boswellia and Hyaluronic Acid, along with a convenient daily serving and third-party testing.

WOWMD® Joint Support in general is more suitable for those who want to find a supplement that provides joint support overall, but neither supplement can be guaranteed to relieve pain or to improve mobility for everyone.