#1 for Leg CrampsTrusted by Runners & CyclistsNighttime Charley Horse ReliefExtra Strength Transdermal MagnesiumNo Pills NeededUSP Grade Purity #1 for Leg CrampsTrusted by Runners & CyclistsNighttime Charley Horse ReliefExtra Strength Transdermal MagnesiumNo Pills NeededUSP Grade Purity
Extra Strength Formula

Stop Leg Cramps
Mid-Run, Mid-Ride & Mid-Night

Painful leg cramps and charley horses aren't random — they're your body screaming for magnesium. Our extra-strength roll-on delivers it right to the muscle, in minutes.

★★★★★
4.9 Stars · 4,688 Reviews · Trusted by runners, cyclists & active adults
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Sound Familiar?
Millions of active people suffer from leg cramps caused by magnesium deficiency — and never connect the two.
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Mid-Run Calf Cramps

Your training is going great — until a violent cramp freezes your calf mid-stride and forces you to stop.

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Cyclist Quad & Hamstring Cramps

Miles from home, your legs lock up. Sweating depletes magnesium faster than you can replace it with sports drinks alone.

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2AM Charley Horse

You're jolted awake by a searing charley horse. You're exhausted but can't relax back to sleep. Night after night.

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Pills Don't Reach the Muscle

Oral magnesium loses potency through digestion. By the time it circulates, your leg cramp is already here.

See How It Works

Watch why transdermal magnesium outperforms pills for fast-acting leg cramp relief.

Recommended: 60–90 second product demo or customer testimonial video

Why Topical Works Better
Transdermal magnesium skips digestion entirely — it absorbs directly through skin into the muscle tissue where cramps originate.
1

Roll On the Cramp

Apply directly to the cramping calf, quad, hamstring, or foot at the first sign of tightness.

2

Absorbs in Minutes

Extra-strength magnesium penetrates skin and goes straight to the muscle — no digestion delay.

3

Muscle Releases & Relaxes

Magnesium restores the mineral balance that causes cramps, allowing the muscle to fully relax.

4

Use Before, During & After

Pre-run prevention, mid-race relief, or nightly nightstand routine — it works at every stage.

Why Seven Minerals Extra Strength?
Not all magnesium products are equal. Here's what makes ours different.

Extra-Strength Concentration

Higher magnesium concentration than standard sprays — formulated for athletes and active adults who need fast, reliable relief.

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USP Grade Purity

Tested and purified to pharmaceutical-grade standards. Sourced from the pristine Ancient Permian Seabed — zero contaminants.

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Made in the USA

Manufactured in the United States with strict quality controls. No fillers, no artificial additives.

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Targeted Roll-On Delivery

The roll-on applicator lets you apply exactly where the cramp is — no mess, no waste, no sticky hands.

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No Harsh Additives

Pure magnesium chloride. No parabens, no artificial fragrance, no ingredients you can't pronounce.

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3,000+ Five-Star Reviews

"Finally something that actually stops my charley horses." — Real customer, verified purchase.

What Customers Are Saying
Real people. Real results. No scripts.
★★★★★

"I'm a marathon runner and leg cramps were ruining my long runs. I roll this on my calves before every run now and haven't cramped since. Game changer."

Sarah M.
Marathon Runner · Verified Purchase
★★★★★

"Woke up every night with charley horses for years. Tried everything. This roll-on on my calves before bed is the only thing that actually works."

James K.
Cyclist · Verified Purchase
★★★★★

"I keep one in my jersey pocket during rides. When I feel a cramp coming on I roll it right on. Saved me twice on a 70-mile ride last month."

Linda R.
Triathlete · Verified Purchase
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USP Grade
Tested & Purified

🇺🇸

Made in
the USA

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Permian Seabed
Sourced

4.9 Stars
4,688 Reviews

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Free Shipping
Over $70

Choose Your Relief
Start with the Roll-On for targeted cramp relief — or go bigger with the Spray for full-body coverage before and after activity.
Full Body Coverage
Magnesium Oil Spray

Pure Magnesium Oil Spray

12 fl oz · 355 mL

Spray across legs, back, and full body before workouts or at night. Great for full-leg coverage before long runs or rides.

View Product
💡 Pro tip: Many customers use both — spray before activity for prevention, roll-on during or after for instant targeted relief.

💯 100% Satisfaction Guarantee

Try it risk-free. If you're not completely satisfied with your results, contact us and we'll make it right. No hassle, no hoops. That's the Seven Minerals promise.

Seven Minerals®

© 2025 Seven Minerals · sevenminerals.com · Made in the USA

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.