Get Up to 20% Off While Supplies Last

1,000+ Trusted Reviews

The Purest Salt on the Planet

Polar White Sea Salt is a mineral dense salt from pure, arctic waters that contains industry-low heavy metals and no microplastics

Combats fatigue

Packed with minerals

Rich in magnesium



4 Free Bonuses Will Be  Added to Your Order

The Best Salt Ever Guarantee: We guarantee this will be the purest salt you've ever had. If you are not completely satisfied, let us know and you will get a full refund.


While supplies last, you will get $129 worth of free bonuses with your order. These bonuses are only available for a limited time. When they're gone, they're gone. 

"Most salts have heavy metals and microplastics. I was so pleased to find out this has none."

There's no doubt about it; the average salt contains tons of heavy metals and microplastics. 

These can lead to stress, adrenal issues and inflammation, just to name a few. 

But what if there was a pure form of salt that delivered the same great taste?

You would be able to enjoy both the taste and many benefits of salt, but without having to worry if it contains microplastics or heavy metals.

...And best of all: Our Pure Polar Sea Salt can help out those with adrenal issues. 

That would be pretty awesome right? A microplastic and heavy metal free salt, that also helps your body function even better than before.

We are Crucial Four - and we product micro-plastic free foods that supercharge your metabolism and improve your health.

...So you can feel your absolute best, all day every day.

Our Salt Addresses Countless Issues

Salt is a very important mineral for a wide variety of bodily functions. 

Supports Nervous System

Salt is very important to a functioning nervous system. Sodium is very important for the generation and propagation of nerve impulses.

Improves Mineral Balance

The modern diet and lifestyle can often lead to mineral imbalances and deficiencies. mMinerals helps you get what you have been missing.

Helps You Stay Hydrated

Many times when we feel thirsty, we are actually suffering from a lack of salt and minerals. mMinerals can help you stay hydrated for longer.

Why Crucial Four?

Crucial Four Polar Salt is known for its superior taste, as well as for being the industry leader in quality testing for heavy metals and microplastics. 

Other Salts

Full of trace minerals that do you harm

High heavy metal content

Full of microplastics


Crucial Four Pure Polar Salt

Pure salt that can be used in any recipe

Industry-low heavy metal content


Sustainably hand-harvested

Over 35,000 Happy Customers

See why thousands of Americans love Crucial Four.

Morgan R.

Our family loves this sea salt! Wonderful product!

Victoria N.

I love this and can tell a difference in how I feel.

Erica S.

Truly love the taste and impact - has become one of the only salts I'll use.

Great Taste. No Drawbacks.

Our pure polar salt can be used in a variety of recipes. From adrenal mocktails and kale to ribeyes and gluten-free pies, mix, cook, top, and bake with these microplastic-free flakes.

Sustainably Hand-Harvested

As nature intended, it’s dried by the sun and wind without machine processing. Hand-harvesting maintains the crystalline structure of the salt crystals. 

A totally renewable resource (unlike mined salts), passing through ancient sea shell beds increases magnesium, potassium, and calcium.*

Polar Pure

There is no industry, tourism, or recreation happening on the beaches where our pristine salt is hand-harvested due to the treacherous current and freezing temperatures

Addresses Adrenal Issues

Our Polar Pure Sea Salt is very rich in magnesium, which is an essential mineral for the human body.

It has helped thousands of people with adrenal issues feel better every single day.

Limited-Time Deal:

Get Up to 20% off

Get four free bonuses when you buy 2lbs or 4lbs.

Discount is automatically applied at checkout.


2 lbs

+ Four FREE Bonuses

2 lbs (15% Off)

2 lbs Pure Polar Salt

1x Free mDefense

1x Free mMagBicarb

1x Free mBreakfast

Free Feel Limitless Guide



$129 of Free Bonuses


4 lbs

+ Four FREE Bonuses

4 lbs (20% Off)

4 lbs Pure Polar Salt

1x Free mDefense

1x Free mMagBicarb

1x Free mBreakfast

Free Feel Limitless Guide



$129 of Free Bonuses

1 lb

1 lb (10% Off)

1 lbs Pure Polar Salt




See below for our most frequently asked questions.

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