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Olympus Labs MASSACR3 | The Best All-Natural Mass Building Agent

Most people who take MASSACR3 say it is the closest thing to taking steroids that has ever hit the market.  No need to buy some shady pill from the back room of a gym.  Buy MASSACR3 and start seeing the results you want.

Laxogenin is one of the most effective natural muscle builders on the market, and its bio-availability just got enhanced by up to 600% with PhytoFuse.

Olympus Labs gave this formula an upgrade by stacking it with arguably the greatest recent ingredient breakthrough with Urolithin-B.  This natural ingredient is 80% more anabolic than testosterone, and 57% more effective than insulin at increasing protein synthesis.  Don't just take our word for it, give MASSACR3 a try today.


  • May Increase Lean Muscle
  • May Increase Strength
  • May Improve Muscle Recovery
  • May Increase Protein Synthesis
  • May Reduce Muscle Fatigue
  • May Increase Blood Flow
  • May Increase Muscle Pumps
  • May Inhibit Protein Catabolism
  • May Increase Vascularity

The MASSACR3 Triple Threat

Urolithin B: One of four metabolites of ellagic acid/ellagitannins. Research has shown supplementing the diet with ellagitannins mitigates muscle damage experienced during intense exercise and protects muscles against stresses induced by a high-fat diet. Clinical research on Urolithin B in mice found that it enhanced myotubes growth and differentiation by increasing protein synthesis. It demonstrated an ability to inhibit the ubiquitin–proteasome pathway (UPP), the principal mechanism for protein catabolism. It also induced muscle hypertrophy and reduced muscle atrophy. Signalling analyses indicate a connection between the androgen receptor and the mTORC1 pathway, possibly via AMPK. In studies, UroB at 15µM promoted androgen receptor activity by 90% vs. testosterone at 100µM which promoted androgen receptor activity by 50%. Even at significantly lower doses it outperformed testosterone. Additionally, UroB at 15µM upregulated MPS by 96% while insulin at 100 µM upregulated MPS by just 61%. Once again, at a significantly lower dose UroB was more effective than Insulin at increasing muscle protein synthesis.

Laxogenin PhytoFUSE: Derived from plants, this ingredient is essentially a steroid building block which your body uses as a blueprint to create its own steroids. Laxogenin has been compared to the steroid Anavar, and supports increased protein synthesis and nitrogen retention while promoting other anabolic effects such as increased strength, muscle endurance, muscle recovery, and lean muscle mass. Additionally, Laxogenin aids in controlling the stress hormone cortisol, which when out of balance increases fat and muscle wastes. PhytoFUSE, a unique delivery technology that enhances the bioavailability and absorption of Epicatechin. Research has shown that this method of delivery can enhance potency anywhere from 2x-6x!

Vaso-6: A brand new vasodilator and nitric oxide enhancer which is a trademarked extract of grape seed and green tea, but only the nitric oxide boosting fractions in them. Studies have shown that that it demonstrates endothelial-dependent relaxation (EDR) activity by 15% greater than placebo, producing increased vascularity and pumps. Additionally, these compounds have shown to increase blood flow, enhance glucose uptake, improves protein synthesis, reduces fatigue and improves strength and recovery. Studied at the University of South Florida it has been shown to stimulate nitric oxide levels at 10 times greater than citrulline.

Customer Reviews
4.8 Based on 5 Reviews
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Filter Reviews:
Cory C.

I am taking this stacked with mts physicore, insurgent and tyrant and I have to say I have double my personal best right now! I heard it gets better over time.

Dale A.
Holy sh%#

Ive used a lot of muscle enhancers in my time but in 2 weeks I feel stronger an hit a new PR in squats .

Spencer E.

Saw results after the first time using the product! It’s not major gains quick. You still have to put in work for it, but I can see myself buying this product again when I run out!

Massacre from Olympus Labs

Have only been taking for a week so as of right now I can only give it 4 stars. I give it 4 because the pumps are really great! I have combined it with MTS Clash for a double whammy on the pumps!!!!

Geoff C.
So far so good

Have been on it for just a week and a bit so tough to say how affective it is. Seen and felt small gains in strength, but nothing incredible. I heard it can take a month or longer for Laxogenin to show it’s full potential. Pumps are really good though with the Vaso-6.

Nutrition Info

Warning Concerning California Residents: This product may contain chemicals known to the State of California to cause cancer and birth defects or reproductive harm.