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SARM EVIDENCE & REGULATORY GUIDE · REVIEWED 1 SEP 2026

What are SARMs?
A class name is not a safety claim

An evidence map for selective androgen receptor modulators in the catalogue, with commonly misclassified compounds separated and no pricing, dosing or protocols.

QUICK ANSWER

Separate genuine candidates from marketing categories

The catalogue includes ligandrol/LGD-4033, RAD140, ostarine/MK-2866, andarine/S4 and YK-11, which WADA 2026 lists as SARM examples. MK-677, SR9009 and GW-501516/cardarine are not SARMs.

01 · IDENTITY MAP

Catalogue identity map

EntryCorrect classEvidence boundary
Ostarine / enobosarm / MK-2866

SARM candidate

Human muscle-wasting research exists; no FDA approval and no bodybuilding proof

Ligandrol / LGD-4033

SARM candidate

Short healthy-men trial found lean-mass and hormonal/lipid signals; no established long-term benefit

RAD140; Andarine / S4

SARM candidates

Insufficient human performance evidence; no FDA approval

YK-11

Listed by WADA as a SARM/other anabolic agent

Extremely limited human evidence; FDA reported a stroke case involving a tested YK-11 product, without establishing every product or single-cause attribution

MK-677 / Ibutamoren

Ghrelin-receptor agonist / GH secretagogue

Not a SARM

GW-501516 / Cardarine

PPAR-delta agonist candidate

Not a SARM

SR9009

REV-ERB-related experimental compound

Not a SARM

Catalogue names do not authenticate supplier identity, composition, quality or authorization.

02 · HUMAN EVIDENCE

Biological signals exist; approved indications do not

LGD-4033 · N=76

Short trial in healthy men

A 21-day study found exposure-related lean-mass increases plus suppression of total testosterone, SHBG and HDL. It was too small and short to establish long-term safety or health outcomes.

SAFETY REVIEW · 33 STUDIES

Trials and case reports

A review covering 1,447 SARM-exposed people reported DILI, rhabdomyolysis and tendon rupture, with ALT elevations in some trials.

INTERNET PRODUCTS · N=44

Labels did not establish identity

Only 52% contained a SARM, 41% matched the labeled amount, and 25% contained undeclared substances.

03 · SAFETY BOUNDARY

Material risks and uncertainties

  • Drug-induced liver injury, including hospital-treated cases
  • Testosterone/gonadotropin suppression, sexual dysfunction, testicular shrinkage and infertility
  • Lipid, blood-pressure and cardiovascular concerns, including FDA heart-attack/stroke warnings
  • Psychiatric, sleep, tendon and rhabdomyolysis reports
  • Contamination, undeclared drugs, wrong amounts and multi-compound mixtures
REGULATORY + SPORT

Regulatory and sport boundary

FDA treats bodybuilding SARMs as unapproved drugs, not approved dietary supplements; “research use only” does not establish legal human use, safety or quality. This review does not verify Thai FDA authorization for catalogue products. WADA 2026 prohibits SARMs including andarine, enobosarm, LGD-4033, RAD140, S-23 and YK-11 at all times under S1.2.

04 · FAQ

Frequently asked questions

What does SARM mean?

Selective androgen receptor modulator is a class of candidates affecting androgen-receptor signaling, not one molecule.

Are SARMs safer than steroids?

That is not established. Tissue-selectivity is a development goal, not immunity from liver, hormone, lipid, cardiovascular, fertility or product-quality risks.

Do ostarine and ligandrol have human studies?

Some limited human research exists, but it is not FDA approval or evidence for bodybuilding/performance use.

Are MK-677, cardarine and SR9009 SARMs?

No. Their primary mechanisms differ from androgen-receptor modulation.

Does research use only prove quality?

No. Internet-product analyses found frequent identity and amount discrepancies.

Are SARMs allowed in sport?

No. WADA 2026 lists SARMs under S1.2 and prohibits them at all times.

05 · SOURCES & SCOPE

Primary and authoritative references

Information boundary

Educational evidence and regulatory summary only. Not diagnosis, treatment, prescribing, product authentication, dosing, preparation or administration guidance. No external medical reviewer. Verify current exact-product labels and local regulatory records.

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