NEW: Ship to ! i

SwissRX Vitamin D3/K2 By SwissRX

8 reviews
List Price:
Price: $45.00
You save:

30ml: Limit 4 per customer

What we think

Are you one of the vast majority of endurance athletes that doesn't have enough Vitamin D?

In speaking with Dr. Kevin Sprouse, our Chief Medical Advisor, he's seen very few athletes that had sufficient levels of Vitamin D. "Having insufficient Vitamin D levels is so common amongst my patient population of elite athletes that I've come to expect it".

Vitamin D plays an important role in supporting bone health, maintaining cardiovascular function, and regulating immune function. When you take Vitamin D it increases your body's absorption of calcium and that's where the SwissRX Vitamin D formulation stands out from the rest.

Swiss RX Vitamin D3 with Vitamin K2

This pharmaceutical-grade, clinically-backed, doctor-recommended combo ensures you're getting the most out of your vitamin D supplementation, eliminating any possibility of over mineralization in the wrong parts of your body.

Here's how it works...

When you have optimal levels of vitamin D in your body, you're able to absorb all the important bone-strengthening, immune-boosting minerals such as calcium and magnesium.

BUT if you're low on Vitamin K, your body may choose to store these minerals in places that you don't want, such as your arteries instead of your bones.

The top researcher in the space, Dr. Leon Schurgers of the Netherlands, showed that taking Vitamin D WITH the right form of Vitamin K, ensures the minerals get pulled into the bone matrix, where you want the calcium to go, instead of getting stored up and calcified in 'danger zones' such as your arteries.

In a nutshell, take vitamin D for absorption and Vitamin K for the regulation of Calcium. Together, they make the perfect pair.

What makes SwissRX Vitamin D the best?

SwissRX takes a pharmaceutical grade Vitamin D3 and combines it with the patent form of Vitamin K2 that Dr. Schurgers used in his research called MenaQ7® PRO. It has been shown that the MenaQ7® PRO stays in your blood for 72 hours versus inferior forms of Vitamin K2 that only last 4 to 8 hours.

Do I need to supplement Vitamin D or just get out in the Sun?

I asked Dr. Sprouse for his answer to this question, this is what he had to say:

"Short answer, I’m not exactly certain. Conceptually, I think of it as athletes having extremely high utilization rates. Vitamin D essentially functions as a hormone in the body and is integral to muscle function, recovery, hormone formation, immune function, and many other processes. Athletes stress these systems to a greater degree and more frequently than sedentary people. There is also the fact that athletes who are outside for long periods of time often wear sunscreen, as they should. So it’s multifactorial. In the end, though, I suspect it comes down to burning through stores faster than they can be replaced".

How we use it

I use 4 drops per day in the AM (that is 4,000 IU). You can take it directly on your tongue or mixed with the beverage of your choice.  You can swallow it, you don't need to hold it in your mouth. 

The reason I like the drops is that it's easy to regulate your dosage.  Each drop is 1,000 IU so if your doctor recommends a lower dosage from 5,000 IU per day, it's easy for you to adjust. More is not better when it comes to Vitamin D.  You don't want to be deficient, but once you get to a sufficient level, most of the data suggest you get all the benefits and mega-dosing doesn't have any additional benefits.

The Swiss RX Story

We set out to find a supplement company we could trust for the world's top endurance athletes. A company that had the same obsession with quality and performance as our athletes do. After all, why spend millions of dollars optimizing the performance of a Tour de France champion only to give him a low-quality supplement with inferior or ineffective ingredients?

Our quest led us to SwissRX. SwissRX takes a "spare-no-expense" approach to procuring the highest quality Pharmaceutical Grade Ingredients. Only 3% of supplement companies go through the rigorous testing required for pharmaceutical grade labeling. But Swiss RX takes it even another step further. Whenever possible, they use the exact ingredients used in medical studies but are often too expensive for supplement companies to use.  What we love about SwissRX is that our athletes can rest assured they are getting the identical ingredients that were proven to be effective in these studies.

Simply stated, SwissRX products work better because they contain better ingredients.


The SwissRX Guarantee

We know SwissRX is expensive, but you get what you pay for- especially when it comes to supplements. Other brands may be cheaper, but so are the quality of their ingredients. If you're anything like me, you'd rather pay a premium and KNOW you're getting the highest quality and most effective product possible 

That said, you can try it RISK-Free.  We are 100% confident SwissRX is the best supplement in the world, which is why guarantee it. If for any reason at all you are not THRILLED with your results after using this product for three weeks, contact us within 60 days of your purchase and a no-hassle MONEY BACK refund in the form of Feed Credit. There also is no need to return the product to us, just send us a picture.


Disclaimer: These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any diseases. You should consult a licensed health care professional before starting any supplement, dietary, or exercise program, especially if you are pregnant or have any pre-existing injuries or medical conditions. See our FDA Disclaimer.

Questions & Answers

Reviews for SwissRX Vitamin D3/K2

Customer Reviews
4.8 Based on 8 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Austin O.
I recommend this product
This is so easy to use.

This is so easy to use. Ever since I've been hearing most people are Vitamin D deficient I wanted to get something ASAP. This is so easy to use. It's just not possible to get in the sun to get the vitamin the old fashioned way. I feel a little cheerier too now that I've used it a few days. Get it for sure if you're on the fence.

Jane K.

D3 helps the body absorb calcium and phosphorus while K2 helps calcification of bones and prevents calcification in the kidneys and arteries. I started taking SwissRX Vitamin D3/K2 because I can’t have dairy products. I had some pain and slight calcium buildup in my right shoulder that has gone away in the last 2 weeks after taking D3/K2.

Tara K.

This is something I see myself using the rest of my life- I feel like I’m doing something good for my entire body! I paid full price for this and it’s my honest review!❤️

Jesse O.

I love this product! Must have for me! Love this stuff!

Efrain S.

5 day taking them and feel great especially my joints. Awesome products!

Carlee W.

They seem to work for me. No after taste. I’ve ordered them twice.

Johan O.

Fulfills my Vitamin D needs, along with Vitamin K. Easily take 1 or 2 drops with a meal. No taste or aftertaste. Liquid, so know it's absorbing right away and more effective.

Zaire E.

This product is an excellent value. Very high-quality potent liquid dietary supplement with dropper application. First use I noticed improved energy. Using daily and will buy again and recommend to others.