KILLING CRAMPS SO YOU CAN CRUSH YOUR GOALS

ON SALE FOR 24 HOURS ONLY!!!

Put a stop to race ending cramps with topical magnesium.  As ultramarathon runners ourselves, we created Cramp Killer to help us meet our own racing goals. 

Why Do You Cramp?

Each cell in the body has a sodium/potassium pump, which uses magnesium to regulate the balance of minerals inside and outside the cells and delivery hydration during exercise.   
 
During endurance events, your body can become depleted of magnesium, creating a mineral imbalance that dehydrates muscles, and causes race ending muscle cramps.
 
Cramp Killer is made from concentrated low sodium inland seawater that is extremely high in magnesium and trace minerals.  When cramps DO occur, applying all natural Cramp Killer directly to the cramping muscle can instantly restore balance – killing the cramp, and saving your race!

Why Is Cramp Killer So Effective?

For years endurance athletes have taken magnesium tablets to fight cramps.  However, only a small percentage of ingested magnesium is absorbed by the body.   It can take 30 minutes or more for ingested magnesium to reach your muscles, making it much less effective.

Spraying concentred magnesium is the most efficient way to deliver much needed magnesium to your muscles during endurance racing.  

Direct to skin application is the most efficient way to deliver much needed magnesium to your body – directly to the cramping muscles that need it most.

DON't DNF!

Just a few sprays can save your race .

  • When cramps start - spray 3 to 6 pumps of Cramp Killer directly onto the muscle
  • Rub Cramp Killer into the muscle vigorously
  • Use as needed and FINISH!!

Real Reviews

From Real Athletes

I love you! TYTYTY Just received my first bottle of Cramp Killer and it’s truly amazing. Stupid cramps have truly been cramping my style and I have a trail half next month that had me very concerned. Spray, rub, no cramp.

Kristie Con.

Barkely Fall Classic

I fight quad cramps every summer and was finally able to finish my first ultra without blowing up halfway through the race. I keep a bottle in my Camelback every time I’m on the trail!

– Emily Bl.

Rough Trail 50k

This oil has saved my legs a few times but this last race I am amazed with it!! Yesterday I was not able to bend my left leg at all without wanting to vomit and cry because of the pain. Today I am slow and still in some pain but I can bend my knee! Anyone with pains should try this… #MagnesiumOilSprayIsTheBomb

– Heather W.

Falls 100 Ultra

CHOOSE YOUR EXCLUSIVE PACKAGE

FREE SHIPPING WHEN YOU ORDER TODAY!

1x Cramp Killer

$19.97

per bottle

($19.97 total)

+Free Shipping & Handling

3x Cramp Killer

$16.99

per bottle

($50.97 total)

+Free Shipping & Handling

5x Cramp Killer

$12.17

per bottle

($60.85 total)

+Free Shipping & Handling

RESPONSIBLY SOURCED IN THE USA

Cramp Killer only sources domestically. Our magnesium oil is concentrated and purified in solar evaporation ponds in West Utah, to ensure quality and provide the highest level of magnesium in each bottle.

100% MONEY BACK GUARANTEE

WE’LL REFUND YOUR MONEY EVEN IF YOU SEND US BACK AN EMPTY BOTTLE!

Order now with confidence!

If for any reason you don’t think Cramp Killer is for you, we offer a 30-day money back guarantee.

So if you don’t love it, you can get your money back. No questions asked!

Frequently Asked Questions:

What are the ingredients in Cramp Killer?

Cramp Killer is made from a concentrated solution of low sodium, inland sea water.  Cramp Killer is 100% natural.  Our sea water is sourced from the Great Salt Lake in Utah, and then concentrated and purified in solar evaporation ponds before being bottled.  This powerful solution of magnesium and trace minerals helps to Kill Cramps on contact – and keep you in the race. 

How fast does it start to work?

Your skin will begin to absorb the oil immediately.  You will typically notice muscle relaxation within 10 to 60 seconds.

How often can I use it during a race?

Use as needed to kill cramps and get to the finish line. Your skin will only absorb what it needs.

Can I use too much?

How frequently you apply magnesium oil will depend on your level of discomfort. We recommend you use it as needed.

How do I contact Cramp Killer?

Email us at:  support@killthecramp.com

Do sell wholesale?

Yes!  We would love to work with you.  Just email us at support@killthecramp.com and ask for our wholesale / retail price list.