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We offer an unequivocal full refund on the purchase price of any of our exclusive formulas (minus shipping) any time within 3 months of your purchase. We do not require the return of unused product for a refund on the first 30 capsules of any formula purchased. However, for fraud protection, we require the return of product for any refunds beyond the initial 30 capsules. This guarantee only valid for Onnit™ formulas (not 3rd party products or foods, with the exception of Hemp FORCE). To process a refund or for more info visit our help page. Hemp FORCE is required to be returned to qualify for a refund. Fitness Equipment, gear, DVDs, and Digital Downloads are not eligible.

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Naked Challenge
Primal Challenge
The 5-Week Primal Challenge As Heard On

Watch the video to get an overview of the Primal Challenge

Challenge Yourself

The goal of the primal challenge is to get you back in touch with your primal nature. Back to a state where you could run, hunt, fight, and procreate like your pre-civilized ancestors. To do this will require a combination of fitness, nutrition, and carefully selected supplementation. Over the course of 5 weeks, with a little bit of sweat and discipline you can turn the corner with your body and mind, and be able to fully enjoy all of the gifts of being alive in this animal world.

Men's Ultimate Primal Challenge Package Men's Basic Primal Challenge Package Women's Ultimate Primal Challenge Package Women's Basic Primal Challenge Package

Primal Challenge Package

$237.75 $213.98
$145.30 $130.77
$137.75 $123.98
$80.30 $72.27
Add to Cart
Package Contents:

Primal Bell

The Primal Bell directional kettlebells are built to awaken your primal nature and produce a savage workout. Made from the same high-quality, extremely rust and chip-resistant coated iron as the original Onnit Kettlebells, our Primal Bells have been 3D scanned and re-sculpted multiple times to ensure perfect balance for a professional quality workout.

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35lb Kettlebell

Onnit's Kettlebells are made with a high-quality, chip-resistant coating that's strong enough to endure your most punishing workouts. Kettlebell training combines explosive strength with muscular endurance to provide an efficient and athletically optimized full body workout.

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T+ Testosterone Booster

Testosterone is one of the most important hormones produced by the body, particularly for males. Not only is it vital to maintaining proper musculature and masculine appearance, it has myriad psychological benefits as well. Lastly, strong, healthy levels of testosterone are important to maintaining optimal libido, including both sex drive and performance.

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15lb Kettlebell

Onnit's Kettlebells are made with a high-quality, chip-resistant coating that's strong enough to endure your most punishing workouts. Kettlebell training combines explosive strength with muscular endurance to provide an efficient and athletically optimized full body workout.

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Shroom TECH Sport

Shroom TECH Sport battles fatigue with a strategy unlike any other supplement on the market, providing cellular energy through the production of ATP rather than stimulant-based energy, and helping the body to improve oxygen utilization so you can go longer, recover faster, and set a new personal best.

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Hemp FORCE

The human body is nature’s masterpiece. We have been optimized over millions of years of evolution to utilize the foods that grow in our midst. Earth grown nutrients packed with proteins, healthy fats, carbohydrates, vitamins and minerals, are the ideal fuel source. Hemp FORCE is the ideal combination of these building blocks, and just happens to be incredibly delicious.

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Krill Oil

Krill has several benefits over traditional fish oil, including the presence of the powerful antioxidant astaxanthin along with phospholipids that include phospatidylcholine and phosphatidylserine. Onnit’s krill oil is sustainably harvested from pristine Antarctic waters, and is tested to be free of toxic heavy metals.

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Spirulina & Chlorella

Both spirulina and chlorella are forms of algae which provides an extremely potent and well-balanced nutrient profile. Excellent for helping the body detoxify, assisting with a strong immune system, and rounding out a well-balanced diet, these easily absorbed tablets also alleviate the strong taste that comes with most powdered or liquified green food supplements.

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Hemp FORCE Bars (Box of 12)

Earth grown nutrients with a broad spectrum of healthy fats, minerals, fiber and protein pressed into a shape that is perfect for on the go, and just right for the human mouth. That’s what your body wants, and so that is the bar we made.

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$237.75 $213.98
$145.30 $130.77
$137.75 $123.98
$80.30 $72.27
Add to cart
Join the Challenge #primalchallenge

Tweet and Instagram your progress in the 5-Week Primal Challenge using the hashtag #primalchallenge, and your updates will show up here.


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Onnit™ prides itself on the verity of our endorsements. All members of the honor roll sampled product prior to any financial considerations, and actively continue to use the product(s) mentioned. Many members of the honor roll have subsequently been compensated for their promotional efforts on our behalf, however we have done everything in our power to ensure this has no bearing on the integrity of their testimonials. The following honor roll members have received some form of financial compensation: Joe Rogan, AJ Hawk, Bode Miller, Mehcad Brooks, Whitney Miller, Sorel Mizzi, Max Eberle, Roger Huerta, Heath Herring, David Rickels, Derek Brunson, Ben Saunders, Matt Every, Donald Schultz, Matt Vengrin, Steven Chidwick, Kevin Budreau, Tom Taylor, Bernhard Wallner, Dr. Martin Lazar, Nick Plott, Dustin Garza.
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