Fact sheet
Ipamorelin Review: Benefits, Injections, Half-Life and Side Effects (2026)
Ipamorelin is a five-amino-acid peptide that triggers a growth hormone pulse. Human studies are few: one pharmacokinetic study and a surgery trial that found…
All Articles
Every Sarmguide article, newest first. Pick a topic or a type to narrow the list.
All articles, page 18
Question
YK11 Dosage: What Users Report and What Is Known
There is no researched YK11 dosage. Users report 5–15 mg a day for 4–8 weeks; YK11 has never been tested in humans.
Question
Do SARMs Cause Hair Loss? Which SARMs Are Hair Friendly
Do SARMs cause hair loss? They can: they act on the androgen receptor that drives pattern baldness. Which compounds get the most reports, and…
Fact sheet
YK11 Review: What YK-11 Is, Research, Results, Side Effects and Legality
YK-11 is a steroid-based androgen receptor activator sold as a SARM and a myostatin inhibitor. It has never been tested in a human trial.…
Fact sheet
S23 SARM Review: What S-23 Is, Research, Results, Side Effects and Legality
S-23 is a potent nonsteroidal SARM that was studied in rats as a male contraceptive and never tested in a human trial. What the…
Fact sheet
RAD140 (Testolone) Review: Research, Results, Dosage and Side Effects
RAD-140 (testolone, vosilasarm) has one human trial, in women with breast cancer, and no study of muscle in people. What the research shows, the…
Fact sheet
MK-677 (Ibutamoren) Review: What the Human Trials Show
MK-677 (ibutamoren) raises growth hormone and IGF-1. What 17 human trials found on muscle, sleep, blood sugar and side effects, why the FDA lists…
Fact sheet
Andarine (S4 SARM) Review: Research, Results, Side Effects and Legality
Andarine (S4, GTx-007) was one of the first SARMs. It worked well in rats and stopped before human trials. What the research shows, the…
Guide
Injectable SARMs: What They Are, Risks and Claims Checked
Injectable SARMs: what the products are, why the claimed benefits are untested, the extra risks of injecting, and what to check on quality.
Vendor review
SARMs1 Review: The High-End SARMs Store
I’ve reviewed a ton of SARMs companies over the last seven years but I’ve never come across a vendor like this one.
Question
YK11 Stacks: 4 Common Combinations and What Is Known
The four most common YK11 stacks (with MK-677, cardarine, SR9009 or ostarine), what users report, and what is known about each compound.
Question
Clomid PCT After SARMs: What It Is, Doses Studied and Side Effects
Clomid (clomiphene) raised testosterone 146% in healthy men and sped hormone recovery after steroids in an observational study. It has never been tested after…