YK-11 side effects
Across 153 first-hand reports, people mentioned a side effect 38 times (about 25 per 100 reports). The most common: suppression, hair loss, joint pain. User reports show what people notice — they can't tell you whether YK-11 is safe for you.
High-risk compound. Not an approved supplement; serious and sometimes irreversible risks, banned in sport, may be restricted where you live.
Reported side effects
suppression15
hair loss7
joint pain7
liver toxicity5
acne2
rash2
What got worse for some people
In their own words
“Made me so watery and bloated, bloody noses while doing cardio and super high BP, plus I put on shit muscle and felt terrible.”
“I took yk-11 once. Stacked it with rad. I ran both yk and rad at 5mg each for 8 weeks. Pumps were insane. Gained about 7 pounds.”
“I did “mass research” which is a stack of 15mg LGD, 30mg of RAD, and 12mg of YK-11 produced by SR Labz ... I was more than happy with the results.”
“I'm 99% sure it's from the YK11, since it's much closer to a steroid it comes with the steroidal side effects, such as hair shedding.”
“I really have nothing to report. Either my dose was too small, or this shit was completely bunk. No noticeable strength gains above normal linear progression”
“YK-11 made me full as fuck at all times. I didn't put on a lot of size but it gave me a pump all day. Wouldn't never touch it again though because it fucked up my hairline”
Is YK-11 safe? What the research covers
DResearch: None0 meta-analyses · 0 randomized trials on PubMed
None of the top reviews we found focus on safety. All research on YK-11.