Sport Performance. Ultimate Bodybuilding Product. Promote lean muscle gains. Increase protein synthesis. Reduce estrogen levels. Built with Lethrosterone. Boost testosterone. Mass 550 by FinaFlex is the most pivotal advancement in lean muscle acquisition ever introduced. Mass 550 contains two of the most innovative and exotic bodybuilding ingredients available today. The novel combination of Letrosterone and Maslinic acid creates an anabolic environment that promotes lean muscle growth, increased protein synthesis, and a reduction in overall estrogen in the body.
J**K
Highly recommended. I plan on using it for some time
I have been using Mass 550 for about a month and a half now with impressive results. No other changes to workout/diet and 1RM up by about 20% and then there is the commensurate gains in upper body size. Highly recommended. I plan on using it for some time. Also just began using PX to trim body fat and it does everything that it says it does. A+
A**R
Worked great, I ran this with my high protein diet ...
Worked great, I ran this with my high protein diet and combining the two led to mind blowing results. Saw results within 2 weeks, I'm planning on running another cycle sometime soon.
C**R
Finaflex has customer for life great stuff you dont gain on this you didnt train
This is a great product love it gained 9lbs in less then a month I'll be ordering again also my package showed up early finaflex has a customer for life
J**R
Must try
Great 👍🏾 stuff
R**N
Waste of Money
Haven't noticed anything. I was recommended this a few months back but per the review below, it appears the formulation has changed and the pro-hormone they've included isn't adding much of anything. No real increase in energy / strength.
D**3
Good stuff
Great product does what it says. Definitely feel the difference in the gym. Coming from a 40 year old this stuff works. Will be buying more.
K**N
Love this stuff
Love this stuff, really showed improvements on all my muscles. Also ive became alot stronger due to this. Great product And hope see whats next after this lol.
M**A
Three Stars
Good product.
Trustpilot
5 days ago
2 days ago