- Editor Rating
- Rated 2.5 stars
- Muscle Core X
- Reviewed by:
- Published on:
- Last modified:
- OverallEditor: 48%
- EffectivenessEditor: 49%
- Speed of ResultsEditor: 49%
- Sustaining ResultsEditor: 49%
- SafetyEditor: 53%
- ValueEditor: 51%
What Is Muscle Core X?
Muscle Core X is a powerful, nitric oxide-boosting pre-workout supplement, currently sold on a Dutch website and available internationally. It is manufactured in the United Kingdom by a company that is located in New York, New York, USA. The key ingredient, L-Arginine Alpha Ketoglutarate, is a proven, potent nitric oxide booster, and has numerous other physical benefits as well, all backed by scientific studies. Athletes will experience an increase in energy, strength, and mental focus after just one serving of this supplement, all thanks to the effects of L-Arginine. This will allow them to work out harder, lift more, and recover more quickly after working out. With continued use, along with exercise, users will gain muscle, lose fat, and improve all of their athletic abilities.
Each day, individuals are instructed to take 2 tablets of this pre-workout supplement, either on an empty stomach or with a protein-rich beverage. After allowing 30 minutes for digestion and absorption of the amino acids, users will feel an energy boost, which encourages them to work out. Since there is no caffeine or other stimulants in this supplement, athletes will not experience a crash after working out. Instead, due to the longer term effects of L-Arginine, they will heal quickly and be ready to work out again the next day.
The manufacture of Muscle Core X is an international nutritional supplement company called Spring Life LLC. According to the contact information on their website, their corporate headquarters and mailing address are located in New York City, specifically in Manhattan. This means that they are incorporated in the United States and are therefore regulated by American commerce laws. However, it appears that their manufacturing facilities are located in the United Kingdom, as is the address where customers are instructed to send their return shipment. The distribution website is written in Dutch, and since shipping is available internationally, the supplements’ ingredients and production are regulated by the laws of the European Union.
Spring Life LLC, which also sells products under the brand name Nathans Naturals, manufacturers and distributes other supplements, including a weight loss product called Revolyn. All customer service and other inquiries are directed to use the email address that is provided on the website on the Contact page. There is also a fax number for customers to send written communication, as well as the mailing address in New York, New York. Spring Life LLC does not have a large internet presence and has no public social media accounts, and there are also no public complaints about its practices or customer experiences.
How Muscle Core X Works?
Unlike many pre-workout supplements, which may take a few weeks to fully take effect, Muscle Core X goes to work after just one serving. Individuals are directed to take 2 capsules of the supplement approximately a half hour before they plan to begin working out. They can take these supplements on an empty stomach, although many athletes prefer to take it with a protein drink or other source of necessary macronutrients.
After taking the supplement, users will begin to experience the effects of the potent L-Arginine amino acid that is its primary ingredient. This amino acid is a powerful vasodilator, which means that it opens up blood vessels, allowing for increased blood flow and decreased blood pressure. The increased blood flow leads to greater muscle building as well as improvements in brain function.
L-Arginine also has reported effects on natural testosterone production, growth hormones, and protein synthesis, all of which will be experienced after just one serving. Individuals will experience greater strength and stamina, faster healing time, much more energy, and a better ability to focus on the exercises. Since users get fast results, they are driven to work out harder and more frequently, which leads to visible results in a matter of just a few weeks, including muscle gains, fat loss, and improved overall athletic prowess.
Ingredients of Muscle Core X
The one active ingredient in this supplement is the powerful amino acid L-Arginine Alpha Ketoglutarate. There are 450 milligrams of this amino acid in each 2 capsule serving, which is the recommended daily serving size for adults. Supplementing with L-Arginine Alpha Ketoglutarate, or AAKG, has been shown to improve athletic performance and increase results in a number of different ways.
First, AAKG increases the metabolization of nitric oxide, a proven vasodilator that increases blood flow to all parts of the body, including muscles and the brain. It also increases protein synthesis, which helps builds muscle mass and improves strength, stamina, and endurance. Finally, AAKG also helps the liver to rid the body of excessive ammonia that accumulates with exercise, so that individuals can work out longer for greater results.
Because L-Arginine Alpha Ketoglutarate is such a potent and effective ingredients, users are cautioned not to take more than the recommended serving at any time. Individuals with pre-existing health issues, especially kidney or heart disease, should consult a doctor before using this pre-workout supplement. This supplement also contains Gelatine, Magnesium Stearate and Silica, and it may contain wheat, which means it is not appropriate for vegans or for those who follow a kosher or gluten-free diet.
One advantage of this supplement is that it is easy to use for all healthy adults. While some pre-workout supplements involve multiple pills, powdered drink mixes, or other complicated regimens, Muscle Core X is easy to use. Individuals simply take two capsules, the recommended serving size according to the supplement label, about 30 minutes before working out. Since it is easy to use, individuals are more likely to remember to take it every day, which leads to more consistent workouts and faster results.
The other advantage to this supplement is that its ingredient works quickly, with immediate results after just one serving. This is thanks to the proven effectiveness of L-Arginine Alpha Ketoglutarate, which goes to work within a half hour after it is taken. Athletes will first feel an energy boost from the increase in the available nitric oxide, which provides quick energy and motivates them to start exercising. The AAKG also improves protein synthesis, blood flow to the brain, and healing, which allows for greater exertion, better focus, and faster recovery times. Users will feel the results after just one serving of this supplement, and will see the results after just a week of working out.
This supplement is manufactured in the United Kingdom and is available for distribution through the European Union, which means it is CE certified. CE stands for European Conformity, and this certification ensures that the product bearing it conforms to all of the regulations and standards of the European Union’s governing bodies. The European Commission puts the regulations of supplements, including pre-workout supplements like Muscle Core X, under the purview of the European Food Safety Authority (EFSA), established in 2002. EFSA guarantees that products are safe and approved for use by healthy adults. It also uses rigorous testing and quality controls to ensure that the ingredients used are of high quality and that labeling is done accurately and completely.
This supplement is also sold in the United States, which means that its ingredients are considered safe and appropriate under American laws and regulations. This safety is guaranteed by the federal Food and Drug Administration (FDA), which regulates all supplements and food products, ensuring their healthfulness for adults. Further, this supplement is manufactured using standard Good Manufacturing Practices, making it GMP-certified. All of these agencies and organizations have found Muscle Core X to be safe and its production is in accordance with international law.
Other pre-workout supplements left me feeling jittery or didn’t work at all. Muscle Core X gives me the energy I need with no bad feelings and it works right away! I started taking this a couple of weeks ago and I love it. No crashes, no jitters, just lot of energy and a lot of results.
– David G., Copenhagen, Denmark
Wow! I love this stuff. I take it in the morning before I hit the gym and it makes me feel 100% better. I lift more than I used to, and I don’t get tired after working out. Totally feel a big difference. Some of the guys at the gym have even asked me about it, and I tell them that Muscle Core X really works!
– Bryan P., Chicago, IL, US
I did a lot of research before choosing the right pre-workout supplement for my needs. I was looking for a proven nitric oxide booster that would really give me more energy and strength, and AAKG fits the bill. This supplement gives me what I need to improve my body without a lot of fillers or other ingredients. I’ve been taking it for nearly a month now and feel the difference every day.
– Hans B., Detroit, MI, US
This is the BEST nitric oxide booster on the market. I’d been getting flabby and lazy, but once I started taking Muscle Core X I started lifting every day again. I’ve gotten bigger all over, and I’ve even lost the flab. I recommend this for anyone who wants to get results and doesn’t want to wait for them!
– Matthew J., St. Louis, MI, US
Awards & Media Coverage
Muscle Core X is a fairly new product in the pre-workout supplement market, so there has not yet been a great deal of media coverage of it. It has been the subject of some online supplement reviews, which praised the product for its key ingredient although it did not receive high marks overall. Some of these reviews are in English, but the majority are in German or Dutch, in keeping with the target audience for this supplement.
The manufacturer, Spring Life LLC, has little public record beyond its mailing addresses. It seems that it is affiliated with Nathans Naturals, which bills itself as an international nutraceuticals corporation. Nathans Naturals can be found on Facebook and YouTube, where individuals can share their experiences with the company and its products.
The primary ingredient of this supplement, L-Arginine Alpha Ketoglutarate, has been the recipient of a great deal of media coverage as well as the subject of many published scientific papers. For example, there have been recent articles about the proven effects of AAKG in Men’s Health, The Huffington Post, NewsMax, and The Guardian. Scientific, peer-reviewed studies on L-Arginine Alpha Ketoglutarate have been published in journals such as Current Opinion in Clinical Nutrition and Metabolic Care and the National Center for Biotechnology Information, and their findings have been reported in Science Daily and Science Magazine.
There is no explicit money-back guarantee for this product, but according to the Terms and Conditions page, customers who are not satisfied are able to return the supplement for a refund. It is unclear whether bottles that have already been opened are eligible for return, so customers should contact the customer service department to inquire before returning opened bottles. In fact, all customers must first contact this department before they are able to make a return and get a refund. To do this, customers should use the email address that is provided on the website, which is the only guaranteed mechanism for reaching a customer service agent. After receiving a customer’s email, the agent will presumably respond with a confirmation that the return will be accepted as well as more detailed instructions for making the return.
Customers will then need to send the bottles to an address for Nathans Naturals in the United Kingdom. Customers are responsible for the cost of shipping this package back to the UK, and they are encouraged to use a mailing service that provides shipment tracking so that they can be sure the return is completed. All Returns must be made with 30 days of the original order. Refunds will be credited back to the original method of payment, minus the cost of shipping and handling when applicable.
All orders of Muscle Core X are processed within 1 business day of placement. Deliveries, which are available internationally, will be sent by Royal Mail or La Poste. Shipments should arrive within 3-5 business days, excluding weekends and holidays.
For customers who purchase a single bottle of the supplement, the cost of shipping is a flat rate of 4.95 Euros ($5.52), which covers deliveries to all countries and addresses. However, if customers purchase one of the larger package deals, namely the Total-Shred Package or Powerhouse Package, shipping and handling is free. Although these deliveries will be much larger and heavier, the shipping costs are rolled into the total price of the packages, at a much lower cost per bottle to the consumer.
If a customer needs to make a return, he will be responsible for all of the costs associated with shipping back the bottles of this supplement. The initial cost of shipping and handling is also not refundable, although this is not an issue for individuals who have purchased the larger packages. Customers with questions about shipping or delivery can contact a customer’s service agent using the email address that is provided on the website.
Customers have limited options for contacting the manufacturer and distributor of Muscle Core X. The simplest method of communication, and the one preferred by the manufacturer, is to send an email to the customer service department and await a reply. This email address can be found on the Contact page of the website as well as the Terms and Conditions page, and customers are encouraged to use this method for all questions and concerns.
For returns, customers must first send an email to this address, after which a customer’s service representative will authorize the return and provide further instructions. Returns should then be sent to a mailing address in the United Kingdom, where packages are accepted by an organization named Nathan’s Naturals. Since the supplement is produced in the UK, customers may also be able to get information from this address about manufacturing practices, ingredients, and usage.
There is also a mailing address for the corporation that is located on Park Ave, in New York, New York. This Manhattan address will accept mail, although it will be a slower means of communication than simply using the email address. There is also a FAX number, which may reach an agent, though it is unclear if it is regularly staffed.
Safe & Secure Checkout
Customers who purchase Muscle Core X directly from the website are protected by stringent online security measures. The order form page is secured with 126-bit Secure Socket Layer (SSL) encryption, which is the industry standard for online shopping. This encryption protects customer’s personal and financial information from malicious third-party interference. The connection also uses a valid, trusted server certificate for all transactions. Finally, since all customers must pay with a credit or debit card, their purchases are also covered by the anti-fraud protections offered by all credit card companies.
The cost of the Muscle Core X supplement varies widely depending on the number of bottles that are purchased at one time. A single bottle is sold as the Lean Starter Package for 49.95 Euros, and though the website advertises free shipping, shipping and handling are actually an additional 4.39 EUR, bringing the total to 54.34 EUR ($60.63) for a 60-capsule bottle. If customers want free shipping and handling, as well as overall savings, they must buy one of the larger package deals.
For 99.90 EUR ($111.47), customers will receive three bottles of the supplement, an equivalent of buying two at full price and receiving the third for free. Shipping and handling are free with an order of this size. This Total-Shred pack provides a three-month supply of the supplement at a considerably lower cost than if customers purchased each bottle separately.
Finally, for customers who are confident that this product works for them, there is a Powerhouse Pack. In this package deal, customers pay $149.85 Euros for a total of 5 bottles of Muscle Core X. Shipping is free, and customers are effectively saving at least 30 Euros by purchasing this larger package deal.
- The active ingredient in the supplement, AAKG, has been proven to increase nitric oxide metabolization, as reported in numerous peer-reviewed scientific studies.
- This supplement starts to work with just one dose, and individuals will feel the results within 30 minutes of taking two capsules.
- Muscle Core X increases energy without caffeine or stimulants, so users will not “crash” or feel jittery.
- This supplement does not contain any necessary macronutrients, such as protein or carbohydrates.
- There is no phone number provided for the manufacturer, and limited means of contacting their customer service department.
- Customers with pre-existing health conditions, especially kidney or heart related, should not take this supplement.
Muscle Core X
Summary: Muscle Core X is a pre-workout supplement made with L-Arginine Alpha Ketoglutarate, a proven nitric oxide booster that also positively affects hormones, increases energy, improves concentration, and decreases healing time. This supplement is currently sold on a Dutch website, although it is manufactured in the United Kingdom by a company that is based in the United States and is available internationally. A single bottle is 60 capsules, which is a 30-day supply when taken as directed. Individuals report that the effects are felt after just one serving, with an immediate energy boost and improved ability to work out.
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