Olympus Labs have tapped into a popular trend in supplement styling that is all about mythology and horror. According to the about us information, Olympus products are “forged from the mighty thresholds of Olympus from harnessing Zeus’s galvanizing thunderbolts to insure the utmost fortifying ingredients”. Less excitingly, Olympus Labs is actually based in New Jersey with full address and phone number provided.
K1NGS SLAYER is a fairly experimental looking supplement that contains a blend of four herbal ingredients. It is aimed at bodybuilders as a way to improve muscle, digestion, and recovery, but we cannot see it being effective. The ingredients profile seems more suitable for issues relating to old age such as muscle wastage, piles, poor circulation and appetite than it is for health and fitness. In our opinion, this supplement is overpriced and will probably be ineffective for its advertised purpose.
Potential side effects may include stomach pain diarrhoea, nausea, headaches, allergic reaction dry mouth, and bad taste in the mouth.
Some of the ingredients may affect blood pressure, so you will need to avoid if you suffer from related issues or are taking blood pressure medication.
Olympus Labs K1NGS SLAYER is expensive, especially when compared to other unproven herbal products on the market.
Buy from the official Olympus Labs website and it costs a whopping $69.99 for a bottle of 180 capsules (1 month’s supply).
You can shop around for price. We found the same sized bottle on sale from Amazon USA for $49.99.
Customers in the UK can buy K1NGS SLAYER from a range of independent outlets for around £45.00 depending on the seller.
In our opinion, K1NGS SLAYER is all a bit unproven. We like that it does not contain dangerous stimulants and that side effects are unlikely to be a major problem, but we do have concerns in whether it will actually work for bodybuilders as well as the principle ingredient Korean Mistletoe seems to work on mice and elderly people
Korean Mistletoe has not been fully evaluated and although the small amount of clinical testing looks positive, nothing is strictly proven. The other ingredients are mainly for digestive issues and do not seem very relevant. Why would you want to improve your appetite for example? This is certainly not an issue for most people and even less for bodybuilders who are usually consuming a protein-rich diet, as well as building up hunger by all that training.
Overall we don’t think that K1NGS SLAYER is worth trying, and with a total absence of customer feedback, it seems that customers seem to share this opinion.
We do not recommend Olympus Labs K1NGS SLAYER to our readers.
Kings Slayer is a herbal supplement that contains four extracts. To use it you take 6 capsules per serving but the good news is that this is only once a day and with your biggest meal.
The supplement claims to be scientifically advanced and proven, and it features some fairly unusual ingredients. The principle of these is Korean Mistletoe Extract. The other ingredients are Hesperidin Methyl Chalcone – a derivative of Hesperidin, a natural chemical (flavanoid) present in citrus fruits. There is the root of Gentiana Lutea a bitter-tasting plant sometimes used in alcoholic drinks in Europe, and may be more familiar to some US customers as it is a flavouring in a drink called Moxie.
The final ingredient is A Lancea Rhizome extract which is a species of plant which grows in China, and is primarily used in Traditional Chinese Medicine as an aid to the digestive system.
Overall, these herbal ingredients do not look particularly powerful and effective for muscle building and weight loss; however the product information includes some scientific evidence that explains how the supplement works.
These include the fact that Korean Mistletoe helps build muscle mass and exerts an anti-fatigue mechanism proven in experiments on exhausted mice in a swimming test, so it is possible that the same effects could be seen in humans, although it has never been tested.
According to Olympus Labs the most functional benefit to this supplement is as an aid to digestion, nutrient uptake and muscle recovery. This is the part that is supposed to help you build muscle rather than the supplement itself.
In our opinion, it all looks pretty flimsy and the information in the advertising is inconsistent. There seem to be doubts about the real nature of this supplement, but the advertising just gets around this by saying things like “Slay the King” and “become a demigod” and more.
We have covered Olympus supplements in previous reviews. This New Jersey based company sells a range of bodybuilding products under the Olympus range including Olympus Ostarine, which was aimed at elite athletes but contained a dangerous banned ingredient.
There is also a range of products under the name Nutrition Labz. We covered a dodgy looking T booster called Nutrition Labz Testicle, which we did not rate very highly.
According to the advertising, this supplement is “The KING of MUSCLE BUILDING, I-GF-1 SIGNALING, and GH STIMULATING Products!”
It offers the following benefits:
Kings Slayer replaces an earlier product on the market called Orig1n and according to the product information, the ingredients profile has remained much the same apart from the main ingredient Korean Mistletoe extract.
According to the advertising, Korean Mistletoe does just about everything.
It has incredible potential as a stimulator of myogenesis, mitochondrial function and I-GF-1 receptor signalling. Those pathways ultimately result in increased endurance, increases in skeletal muscle mass and reduction of muscle breakdown. It is quite amazing to have all these properties in one ingredient at the magnitude that KME provides, let alone one that is completely natural.
The I-GF-1 receptor function is important. This relates to Ghrelin a hormone situated in the gut, and often called the Hunger Hormone because it signals your brain when to eat. Ghrelin actually increases appetite and increases fat storage, but it also releases Growth Hormone which breaks fat down and helps to build muscle.
Oddly, the ingredients contained in K1NGS SLAYER look more suitable for use by the elderly than they do for healthy and fit bodybuilders. If you are suffering from muscle wasting, haemorrhoids, poor circulation, poor appetite, and digestive disorders, this supplement may help improve things but of course, this is only according to pretty limited clinical testing. We are not advising you actually do this without proper medical advice.
We cannot see Kings Slayer living up to the muscle building claims. There is a lack of information about the main ingredients including any scientific guidelines on serving size, and we can’t really see the point of stimulating your appetite (ghrelin) when for most of us, restricting our appetites is the problem. And although Korean Mistletoe may become popular in the future, at present the only testing has been carried out on the elderly or mice, both with different needs to the average bodybuilder.
Serving size is equal to 6 capsules.
Kings Slayer looks pretty safe although there has not been much investigation into the effects of the various components. That said we cannot find any reported side effects for Korean Mistletoe.
Effects of the other ingredients may include:
Not suitable for individuals under 18. Avoid if you are pregnant or breast feeding. Speak to your doctor before use if you have an underlying medical condition or are taking prescription medication.
There do not seem to be any customer reviews anywhere for this supplement.
Olympus Labs does not offer a money-back guarantee.
You can buy K1NGS SLAYER direct from the Olympus Labs website. It is on sale via Amazon USA, and available from independent supplement retailers in the USA, as well as the UK and Australia.
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Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.