Cramp Killer


As ultramarathon runners ourselves, we created Cramp Killer to help us meet our own racing goals.

We’re excited to support you in yours! Check out below and we will have your bottle shipped to you ASAP.

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Order Summary

Product Total
Cramp Killer - 3 Pack 3PO × 1 $50.97
Cramp Killer - Single Bottle × 2
Subtotal $50.97
Shipping Free
Total $50.97

Shipping Details

United States (US)

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What They're Saying

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.
Barkley Fall Classic runner

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

30 Day Risk Free Return Policy

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!

Customer Support

Margaret - Customer service Hero
If you have any questions about your order, issues with your Cramp Killer or just want to chat - Margaret and our support team are here for you. Contact us any time at:

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