How Can a Plant Build Muscle?



When it comes to building muscle and enhancing performance, athletes, bodybuilders, and even recreational lifters will try anything and everything in pursuit of bigger, better gains. From injectable, illegal substances to elevation masks that make you look like Bane from Batman, there’s no limit to the extremes humans will go to, to beat the competition. But, sometimes folks don’t want to risk their health, or freedom, to go down the road of synthetic anabolics (i.e. steroids), yet still want to make incredible gains.


This has led to increased research and use by many natural lifters of plant-based muscle building agents that enhance one’s anabolic potential, but don’t have the hormonal impact of those illicit, somewhat questionable injectables.


Today, we’re going to take a look at one of those “plant steroids” that may be just the thing you need to take your gains to the next level and turbocharge your size, strength, and performance.


Plant Powered Muscle


Before you even start to question where we’re going, no, this article isn’t taking a turn for vegetarian or vegan-based diet and training, though there’s nothing wrong with that. We’re here to talk about the powerful anabolic compounds naturally-occurring deep within the stems, stalks, leaves, and seeds of plants. They’re living, breathing organisms just like animals are, and that means they also have a variety of naturally-occurring steroids inside of them. One of the most powerful, and important, class of plant hormones are the brassinosteroids.


What are Brassinosteroids?


Brassinosteroids are a family of plant sterols and steroid hormones identified as the sixth class of plant hormones. First discovered over 40 years ago, brassinosteroids are responsible for a wide range of activity in plants including[1]:


  • cell elongation (i.e. growth)

  • cell division

  • root growth

  • Photo-morphogenesis

  • stomatal and vascular differentiation

  • seed germination

  • Immune function

  • reproduction reproduction

  • Governing a plant’s response to stress (heat, cold, disease, etc.)


As you can see, brassinosteroids perform many of the same functions in plants as the steroid hormones naturally-occurring in your own body. This led researchers to wonder what happens if we extract these plant steroids from their parent plants, concentrate them, and give them to humans.


Could these botanical anabolics possibly exert some kind of muscle building effects in humans?


Indeed they do!


A 2011 study using brassinosteroids, 28-homobrassinolide (28-HB) to be exact, found in mustard seed was given to animals both orally and intravenously at doses ranging between 20-60mg/kg bodyweight for oral administration and up to 4mg/kg bodyweight for the subcutaneous route.[3]


Researchers documented that the brassinosteroid stimulated muscle protein synthesis via Akt phosphorylation. It also inhibited breakdown of muscle and even improved the rats strength![3] Perhaps most noteworthy was that these effects were accomplished without any significant androgenic activity in the rats, meaning there was no binding to the androgen receptor, and therefore these plant steroids won’t affect hormone levels. 28-homobrassinolide did NOT show any toxicity to the rats either, the same of which can’t be said for injectable anabolics.[3]


In other words, plant steroids offer anabolic benefits, but don’t impact your androgens, meaning there’s no considerable risk of shutdown with these plant muscle builders, unlike illegal steroids.


But the benefits of brassinosteroids aren’t restricted to just those found in mustard seeds. There’s an even more potent brassinosteroid found in a relative of asparagus.



Perhaps the most powerful, yet least studied, of the plant muscle builders is Laxogenin (5a-hydroxy laxogenin). Laxogenin is a naturally occurring steroidal sapogenin that belonging to the brassinosteroid family and is found in Smilax Sieboldii, a relative of asparagus. It’s similar to ecdysterone, another non-hormonal muscle building compound.


Laxogenin first gained the attention of researchers (and weightlifters) when the compound was found to possess a similar anabolic/androgenic ratio to Anavar, one of the most powerful steroids of all time! However, unlike anavar, laxogenin is all natural and non-hormonal, meaning it doesn’t come with the potential hazardous side effects of synthetic anabolics.


While research is limited, it’s believed Laxogenin can increase muscle protein synthesis as much as 200%.[2,3] Laxogenin has also been noted to reduce muscle breakdown, which means less soreness, faster recovery, and better muscle growth.[4,5] A few other benefits have been attributed to the powerful plant anabolic including decreased stress and cortisol levels, improved fat metabolism, and better blood sugar regulation.[4]


Suffice it to say that laxogenin has the potential to significantly enhance all aspects of your performance and physique. For the laundry list of benefits laxogenin stands to offer athletes, Primeval Labs has created the ultimate natural anabolic agent in Primavar.


What’s Primavar?


Primavar is an all-natural, plant-based muscle building supplement containing 125mg of pure laxogenin -- the highest single capsule dose on the market. Consume one capsule of Primavar prior to training and another capsule in the evening with dinner for a total daily serving of 250mg per day.


Primavar is non-hormonal, all natural, and does not require post cycle therapy (PCT). It’s safe for men and women, and can be used alone or as part of any bigger muscle-building stack.


When you’re ready to see what plants can do fo you, make sure Primavar is at the top of your list!




  1. 1. Tang J, Han Z, Chai J. Q&A: what are brassinosteroids and how do they act in plants? BMC Biol. 2016;14(1):113. doi:10.1186/s12915-016-0340-8.

  2. Kubo S, Mimaki Y, Sashida Y, Nikaido T, Ohmoto T. Steroidal saponins from the rhizomes of Smilax sieboldii. Phytochemistry. 1992;31(7):2445-2450.

  3. Esposito D, Komarnytsky S, Shapses S, Raskin I. Anabolic effect of plant brassinosteroid. The FASEB Journal. 2011;25(10):3708-3719. doi:10.1096/fj.11-181271.

  4. Syrov, V. N., & Kurmukov, A. G. (1975). [Experimental study of the anabolic activity of 6-ketoderivatives of certain natural sapogenins]. Farmakologiia i toksikologiia, 39(5), 631-635.

  5. Fasciola, Andre Armel; “Phytosterol spirostane and spirostene derivatives having a wide variety of utilities in humans and other animals”; US Patent & Trademark Office; September 18, 2014;

Fasciola, Andre Armel; “Phytosterol spirostane and spirostene derivatives having a wide variety of utilities in humans and other animals”; Google Patents; September 18, 2014;