--- title: HMB by Double Wood [Biohacker Review] - Limitless Mindset description: "I've taken 1000 milligrams of HMB before workouts and I believe there is a notable uptick in my gym performance." author: Reese Wood url: https://www.limitlessmindset.com/nootropics/963-hmb-double-wood --- ![HMB by Double Wood [Biohacker Review]](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==) # HMB by Double Wood   5.0   0.0 (0) Write Review [![HMB Supplement, Third Party Tested, for Muscle Recovery, Growth, and Retention (Protein Synthesis) - Made in USA, 120 Capsules, 1000mg Per Serving](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/media/reviews/photos/original/85/c5/9e/hmb-double-wood-69-1643469023.webp "HMB Supplement, Third Party Tested, for Muscle Recovery, Growth, and Retention (Protein Synthesis) - Made in USA, 120 Capsules, 1000mg Per Serving") Ⓒ By **Jonathan Roseland** Applied Neuroscience Strategist, K-Selected Biohacker, Tantric husband, Promethean peaceful parent, Adventuring philosopher, Raconteur, and Author. He spent +14 years researching the intersection of human performance enhancement and advanced personal growth in his obsessive quest - spanning three continents - to find real-life "NZT-48." --- ## **Biohacker Review**: *A notable uptick in gym performance* I've taken 1000 milligrams (two capsules) of [**HMB**](https://www.limitlessmindset.com/HMB) before workouts, and I believe there is a notable uptick in my gym performance. I'm able to lift more, along with doing more pull-ups and push-ups. I've been getting acquainted with some pre-workout supplements in [the last few weeks](https://www.coach.me/users/18dbe22f0cb6519b290d/2054). I've also tried [Mildronate](https://www.limitlessmindset.com/nootropics/396-mildronate-meldonium) before workouts. It's hard for me to compare and contrast the two from my subjective experience because I'll admit that when it comes to my gym performance, it's hard to tell the difference between pharmacologically enabled gains and me just being more aggressive or the placebo effect. There's not much subjective experience with HMB as there is with many Nootropics. ## ** Yohimbine** vs **HMB** ![Yohimbine vs HMB](https://www.limitlessmindset.com/media/reviews/photos/original/df/90/67/hmb-double-wood-94-1671535035.webp) For several months now, I've been alternating two workout stimulants that I like, [Yohimbine HCL®](https://www.limitlessmindset.com/nootropics/139-yohimbine-hcl) and HMB. Both enhance my workouts qualitatively and quantitatively. I'm able to move more weight for more reps on these stimulants. Subjectively, the big difference between the two is that Yohimbine works by releasing adrenaline, the fight or flight stress hormone. So it makes you feel a little more *on edge*and energized. I generally manage stress and anxiety well, so I haven't experienced any negatives from using Yohimbine, although I would want to be doing something visceral while on Yohimbine. I wouldn't want to be just sitting in my home office while on Yohimbine. HMB, on the other hand, does not make me feel energized as a classic Nootropic would, but there is a clear uptick in my gym performance. It is hard to objectively say which enhances my workouts better. I would say that they both enhance my performance by **10% - 20%**. I'm perhaps limited in evaluating these because I'm not a hardcore athlete; I go to the gym several times a week for 90-minute sessions to stay fit and healthy. I'm rather conservative at the gym; making gains and putting on muscle are secondary goals for me. I'd rather have slow, consistent growth in my lifts and weight than really push myself and risk injury. **I did experiment with combining the two**. One Sunday afternoon I did a 90-minute workout on 1000 milligrams of HMB and 5 milligrams of Yohimbine, which was (unsurprisingly) very stimulating and resulted in a great workout, I made gains in my lifts and did 25 pull-ups. I usually do about 20 minutes of cardio at the gym while brain training with [Dual N-Back Pro](https://www.limitlessmindset.com/Dual-N-Back-Pro), which is usually a bit challenging because my gym often blasts awful Hip Hop music, which is, to say the least, a non-optimal audio background for brain training. My brain training scores while doing cardio are usually lower than when I do it sitting at home. I do think that Yohimbine, at least, is a bit of a cognitive enhancer because I had a nice uptick in my brain training scores on this stack despite the distracting music. **Cost and Dosage Comparison**: Fifty 5-milligram [Yohimbine tabs are 21 euros](https://www.limitlessmindset.com/Yohimbine) ($22). I've been doing 15 milligrams per workout session, which comes to **$1.30 per workout**. I found that 1000 milligrams of HMB has a similar effect; [a bottle of 120 x 500 mg capsules costs $19.95](https://www.limitlessmindset.com/HMB), which is just **0.33 cents per workout**. Both are pretty affordable, but HMB is a better deal! Once I exhaust my supply of Yohimbine, I'm not sure if I'll be reordering it. I'd rather use HMB going forward and will continue using [**Creatine**](https://www.limitlessmindset.com/index.php?option=com_content&view=article&id=327:creatine&catid=65:nootropic-ingredients&Itemid=244). ## **What is the science saying about HMB** There are over [200 papers mentioning HMB](https://www.ncbi.nlm.nih.gov/pubmed/?term=hydroxy-beta-methylbutyrate%5BTitle%2FAbstract%5D), notably a [2019 Polish Meta-Analysis](https://www.ncbi.nlm.nih.gov/pubmed/31531146) that describes the scope of clinical trials it's undergone. > HMB supplementation has been carried out with various groups of athletes. In endurance and martial arts athletes, HMB supplementation revealed positive effects on specific aerobic capacity variables. Positive results were also disclosed in resistance trained athletes, where changes in strength, body fat and muscle mass as well as anaerobic performance and power output were observed. [A paper](https://www.ncbi.nlm.nih.gov/pubmed/10966150) by the Sports Science Sports Medicine Centre at the Australian Institute of Sport synopsizes its mechanism and benefits to athletes: > [HMB] a metabolite of the essential amino acid leucine, is one of the latest dietary supplements promoted to enhance gains in strength and lean body mass associated with resistance training. Unlike anabolic hormones that induce muscle hypertrophy by increasing muscle protein synthesis, HMB is claimed to influence strength and lean body mass by acting as an anticatabolic agent, minimising protein breakdown and damage to cells that may occur with intense exercise. ## **About HMB** HMB (Hydroxy Methyl Butyric acid) is a metabolite of the amino acid leucine, and is naturally synthesized in the human body. Studies have shown that HMB plays a key role in protein synthesis, a process that is important to the addition and maintenance of lean muscle tissue. When taken as a supplement, studies have shown that HMB can both promote the addition of new muscle mass and slow the loss of muscle mass that occurs when eating at a caloric deficit. ## Benefits - **IMPROVE POWER OUTPUT** - Improves performance while strength training. - **REDUCE MUSCLE LOSS** - Reduces lost muscle mass when eating at a caloric deficit. - **INCREASES PROTEIN SYNTHESIS** - HMB increases protein synthesis, aiding in the growth of new muscle tissue - **MADE IN THE USA** - HMB is manufactured right here in the USA. ## Recommended Dosage **Take two 500 mg capsules per day** while participating in a strength training program in order to aid in muscle growth when eating at a caloric surplus, and to maintain muscle mass when eating at a caloric deficit. ## Side Effects HMB supplementation is non-toxic and causes no adverse side effects. Studies have found its use to be completely safe at daily doses of up to 3 grams, and higher doses are suspected to be safe as well. --- For a laugh, listen to this EDM **song about performance enhancers**... ### Mind Power Products [Subscribe to the Limitless channel](https://www.limitlessmindset.com/videos) | | | | --- | --- | Sold by - [Double Wood Supplements](https://www.limitlessmindset.com/vendors/1446-double-wood-supplements) 💡 [**INVEST** at least $300](https://www.limitlessmindset.com/Doublewood) in your mind at Double Wood and get a [Biohacking **consultation**](https://www.limitlessmindset.com/membership/secret-society) On Social Media > [View this post on Instagram](https://www.instagram.com/p/B3Wl0vNgXlv/?utm_source=ig_embed&utm_campaign=loading) > > [I beat my old pull up record on #HMB. Out of a number of performance-enhancing #workout #supplements I've tried this is my favorite. There's a notable uptick in my power output on HMB. My priority in the gym is risk mitigation and my research into HMB indicates that it's one of the safest #biohacks for building and maintaining muscle. Read my full review https://www.limitlessmindset.com/nootropics/963-hmb-double-wood #fitness #health @supplementsdw](https://www.instagram.com/p/B3Wl0vNgXlv/?utm_source=ig_embed&utm_campaign=loading) > > > > A post shared by [Jonathan Roseland](https://www.instagram.com/roselandjonathan/?utm_source=ig_embed&utm_campaign=loading) (@roselandjonathan) on Oct 8, 2019 at 4:28am PDT ### Supplement or Drug - Certificate of Analysis by 3rd Party Lab - Gluten Free - Good Manufacturing Practice Certified - Money Back Guarantee - NON GMO - Pharmaceutical Grade - Vegan Friendly Type of Consumable Pill or Capsule ### Photos [![HMB by Double Wood](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/media/reviews/photos/original/4f/45/01/hmb-by-double-wood-94-1529596155.webp "HMB by Double Wood") [![HMB by Double Wood](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/media/reviews/photos/original/56/c4/a5/hmb-by-double-wood-77-1529596180.webp "HMB by Double Wood") [![HMB by Double Wood](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/media/reviews/photos/original/4a/90/d3/hmb-by-double-wood-51-1529596193.webp "HMB by Double Wood") [![HMB by Double Wood](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/media/reviews/photos/original/4c/48/98/hmb-by-double-wood-94-1529596205.webp "HMB by Double Wood") [![HMB Molecule](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/media/reviews/photos/original/e6/ee/6d/hmb-double-wood-46-1643727932.webp "HMB Molecule") [![Yohimbine vs HMB](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/media/reviews/photos/original/df/90/67/hmb-double-wood-94-1671535035.webp "Yohimbine vs HMB") ### Videos [![HMB vs Yohimbine HCL (Workout Supplement Comparison)](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/listing-media/videos?m=LNB2B) [![Performance enhancement from 33 cents per workout ? Supplement Comparison: HMB vs Yohimbine HCL](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/listing-media/videos?m=VRB2B) ### Attachments - **File Description** **File Size** **File Type** **Downloads** - **HMB-COA-89-1529597001** 62 KB ![](https://www.limitlessmindset.com/components/com_jreviews/jreviews/views/themes/default/theme_images/filetype/32/pdf.png) 2 - **HMB3rdPartyTestHL1-40-1529597018** 79 KB ![](https://www.limitlessmindset.com/components/com_jreviews/jreviews/views/themes/default/theme_images/filetype/32/pdf.png) 0 ### Editor review 1 review A notable uptick in gym performance June 21, 2018 (Updated: October 08, 2019) Overall rating   5.0 Good value   5.0 Makes you feel 'Limitless' - Improves memory   N/A Ability to focus   N/A Energy and productivity   N/A Wakefulness and alertness   N/A Social Confidence   N/A Verbal ability   N/A [![HMB vs Yohimbine HCL (Workout Supplement Comparison)](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/listing-media/videos?m=LNB2B) [![Performance enhancement from 33 cents per workout ? Supplement Comparison: HMB vs Yohimbine HCL](https://www.limitlessmindset.com/data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)](https://www.limitlessmindset.com/listing-media/videos?m=VRB2B) JR Jonathan Roseland [#1 Reviewer](https://www.limitlessmindset.com/reviewers#user-823) [251 reviews](https://www.limitlessmindset.com/jreviews/my-reviews?user=823) Report this review [Comments (0)](https://www.limitlessmindset.com/nootropics/discussions/review?id=595) | Was this review helpful? 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