Mutant® | Mass 5Ib

Marsoni

M251S

$79.90

Get it in 3 business days with 1 day shipping. Friday, May 29

Mutant® | Mass 5IbBuilt for serious size and calorie intake, Mutant Mass is a high calorie mass gainer designed to help support muscle growth, recovery, and overall weight gain for hard gainers and athletes with demanding training goals. Featuring a multi stage protein blend combined with quality carbohydrate sources and added healthy fats, Mutant Mass delivers the calories and nutrients needed to help fuel recovery, strength, and muscle building progress throughout

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Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
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Thorne Magnesium is a total game changer! The quality is exceptional, and it has finally helped me get the restful sleep I've been missing. I’ve struggled with insomnia and tried numerous other brands to no avail, but Thorne is truly superior. It is absolutely worth the investment for results that actually work.

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Reviewed in the United States on April 29, 2026

Verified Purchase

Liset lopez

Boise, US

★★★★★ 5

Recommend

Size: 90 Count (Pack of 1)

Excellent quality supplement. Easy on the stomach and helps with relaxation and sleep. You can really feel the difference. Highly recommend!

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Reviewed in the United States on May 3, 2026

Verified Purchase

Amazon Customer

Bozeman, US

★★★★★ 5

Beneficial Sleep Benefits

Size: 90 Count (Pack of 1)

I have just started taking this item and it seems to work. My sleep is better, deeper and I awaken feeling rested. I strongly hope that this item will continue giving me great sleep results! The Magnesium is very beneficial too. I would recommend this supplement! I will purchase again provided it keeps working!!

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Reviewed in the United States on May 25, 2026

Verified Purchase

lateforthetrain

Battle Creek, US

★★★★★ 4

Reliable

Size: 90 Count (Pack of 1)

The brand has a good reputation. I prefer to order products with the Thorne brand than others, because of its reputation. The magnesium by Thorne is well worth the price. It is reputable and for sleep it works well. Other health benefits are included so not just for sleep but overall health. Good product.

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Reviewed in the United States on May 28, 2026

Verified Purchase

Diana E

Lake Worth, US

★★★★★ 5

Great brand great quality

Size: 90 Count (Pack of 1)

I bought this supplement during my pregnancy and absolutely love the quality of Thor supplements. It mainly contains magnesium and I highly recommend this brand. They use the purest ingredients and the effects are truly impressive. Since magnesium can cause side effects I was pleased to find this one didn’t have any for me.

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Reviewed in the United States on May 4, 2026