Core Nutritionals

HMB , 90 Grams Unflavored

HMB Powder Supports Stronger Work*
Supplement With HMB To Reduce Muscle Breakdown And Increase Power Output*
9.0  out of 10  (2 Reviews)

Product Overview


HMB is suggested to:

  • Attenuate the rate of muscle protein breakdown.*
  • Reduce muscle damage during periods of strenuous exercise.*
  • Increase power output during explosive movements.*

HMB (otherwise known as β-Hydroxy β-Methylbutyrate) is like the pretty girl who used to sit across from you in biology: sexy, mysterious, but most of all, pretty complex and little understood. And like that girl, the more you actually understand about this fascinating compound, the more you will like it.

HMB burst onto the bodybuilding market in the early 1990’s, and every supplement company and their brother marketed the compound so heavily it gained a reputation as snake oil. The reviews were so varied that HMB was almost relegated to the dustbin of supplement history.

Times have changed, however, and people have once again begun to realize that, when used properly at an effective serving, HMB’s positive contributions to a muscle-sparing environment are impossible to overlook.*


HMB (β-Hydroxy β-Methylbutyrate) is an endogenous metabolite of leucine consumption, being derived from its parent amino acid through two steps of enzymatic conversion. In total, approximately 5% of leucine by weight of consumption is converted into HMB.

Once converted, HMB has been demonstrated to possess several interesting effects. In cellular assays, HMB was suggested to increase the rate of skeletal protein synthesis through the same mechanism as its parent compound, leucine – the all-important mTOR-P13K pathway that regulates the majority of muscle protein synthesis in vivo.* This mechanism has also translated into practical benefits to human muscle, as various trials have demonstrated HMB to slow the rate of skeletal muscle breakdown, increase power output over both acute (short) and chronic (long-term) trials, as well as mitigating muscle damage during high-intensity exercise.*

Ratings & Reviews

Overall Rating
2 Ratings
Verified Buyer Rating
2 Ratings
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Nov 04, 2017
Verified Buyer

Excellent product. I wasn't sure if it would do anything but, it does. I train fasted in the morning and been using for 2 weeks and already seeing a nice difference. I've gained muscles and got leaner at the same time. All over . Amazing to get such results in such a short period of time. Will keep using it. Highly recommend it. I"m a female, 130 bs and use 2 scoops in my PWO. That's it.

Jun 04, 2015
Verified Buyer

I started taking this product after reading into how it effects power output and protien synthesis. Being a World Class Powerlifter in the 105kg weight class its very important for me. As i started taking the product i noticed that i felt a little stronger. Whether its the hmb or my mind feeling stronger i cant really verify but it is a good product as far as HMB is concerned. Very clean and unflavored.

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90 Grams
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Price: $36.28  ($0.40 / Serving)
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What's in Core Nutritionals HMB

Serving Size: 1 scoop (1000 mg)
Servings Per Container: 90
Amount Per Serving % Daily Value
Calcium (From Calcium β-Hydroxy β-Methylbutyrate) 130 mg 13%†
β-Hydroxy β-Methylbutyrate (HMB) 1,000 mg
(As Calcium β-Hydroxy β-Methylbutyrate Monohydrate)       
† Daily value not established. Percent Daily Values are based on a 2,000 calorie diet.

Directions For HMB: Consume 1 scoop (1000 mg) three times per day, preferably with food. For best results, take one serving 30-60 minutes before your workout.

Warnings: Not intended for use by pregnant or nursing women or persons under the age of 18. If you are taking any medications or have any medical condition, consult your doctor before use. Discontinue use and consult your doctor if any adverse reactions occur. Discontinue use 2 weeks prior to surgery. Do not exceed recommended serving. Do not use if safety seal is broken or missing. Keep out of the reach of children. Store in a cool, dry place.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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