• Striker Labs SARMS Beast Stack
  • Striker Labs Peptide & SARMS Beast Stack - Label
  • Striker Labs Peptide & SARMS Beast Stack - Label

SARMS Beast Stack (YK-11 + Testolone RAD-140)

Striker Labs two bottle pharmaceutical grade SARMS BEAST Stack tested and bottled in the US. Stack comes with RAD-140 and YK-11.

RAD-140, also known as Testolone, is a SARM, a selective androgen receptor modulator. There is little danger of nonskeletal muscle tissues experiencing androgen activity. In fact, RAD-140 has the highest ratio of anabolic to androgenic activity of any SARM discovered, 90:1. Serving Size: 1 ML, Serving per container: 30 Serving,  Amount Per Serving: 30 mg/ml 

Half Life: 

16 hours.


Studies have used a variety of doses, 0.3, 3 and 30 milligrams daily based on body weight of the research subject. 20-30 milligrams per day is typical, in a cycle of 12 – 14 weeks.

Side Effects

None to date, including no effects on liver, kidneys, prostate, nor aromatase conversion (conversion of testosterone into estrogen).

YK-11 although lumped into the SARM category is actually a myostatin inhibitor. Myostatin inhibits muscle growth. By inhibiting the inhibitor, YK-11 promotes rapid muscle growth. YK-11 has been shown to be more anabolic than dihydrotestosterone (DHT).   Serving Size: 1 ML, Serving per container: 30 Serving, Amount Per Serving: 12 mg/ml 

Half Life

6 – 10 hours.


3 – 6mg twice a day in an 8-12 week cycle.

Side Effects

Mild, reversible liver impairment (liver guard suggested). YK-11 has been noted to be suppressive of endogenous testosterone, making a full post-cycle therapy necessary.

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Cycle Options

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