Switch Nutrition HMB Caps

Marsoni

M251S

$54.94

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

Switch Nutrition HMB CapsHMB, or beta hydroxy beta methylbutyrate, is a metabolite of Leucine, one of the three branched chain amino acids (BCAAs). Leucine is considered the king of the amino acids because it has such a profound impact on MPS (muscle protein synthesis). HMB is 20x stronger than Leucine as it takes 20g of Leucine to produce just 1g of potent HMB. During intense physical activity or muscle stress, Leucine undergoes conversion into HMB, contributing to its

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When I received it, it was so small that I thought it was a toy, or maybe for some 4cyl engine. It is significantly smaller than the original one. When I looked closer, the mount holes did line up, so I tried it. I did have to get shorter mount bolts. To my surprise, it works great! I don't know what the longevity will be, but it made it through a busy august! Considering the price and how small it is, I might just buy a second one to keep on board. Just in case.

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Reviewed in the United States on September 14, 2025

Verified Purchase

Bob Valentine

Phoenix, US

★★★★★ 1

Warning!!!

I was so impressed after install!! Fired right up faster that it ever has in the past, had the boat out about 8 times and CACK!!! They say they will stand behind the product and replace it, but do I risk another day ruined on the river? Btw, I have a Volvo penta 5.0 21.5' Larson I/O

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Reviewed in the United States on September 28, 2025