SOMA Enclomiphene Powder 1g
Enclomiphene (trans-clomiphene) powder 1g — ≥98% HPLC purity, COA verified. Non-steroidal selective estrogen receptor modulator studied for HPTA axis restoration and testosterone research. For research use only.
Selective Androgen Receptor Modulators · HPLC Verified
Buy SARMs Online
Research Grade
9 non-steroidal AR modulators. RAD-140, LGD-4033, Ostarine, MK-677 and 5 more. All compounds ≥98% HPLC purity with independent Certificate of Analysis. Ships to USA, Australia, Canada, UK and globally.
9Compounds
≥98%Purity
COAEvery Order
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HPLC + MS Verified ≥98%
Third-Party CoA Every Order
Overnight & 2–3 Day Delivery
Ships to AU · CA · UK · US + Globally
SARMs Research Catalog
18 compounds · HPLC-verified ≥98% purity · Certificate of Analysis on every order
- SOMA
SOMA YK-11 Powder 1g
YK-11 powder 1g — ≥98% HPLC purity, COA verified. Steroidal SARM and partial androgen receptor agonist with myostatin inhibition activity — unique dual mechanism for muscle biology research. For research use only.
SOMA SR-9009 Powder 1g
SR-9009 (Stenabolic) powder 1g — ≥98% HPLC purity, COA verified. Rev-erbα and Rev-erbβ agonist used in circadian biology, metabolic syndrome, and cardiovascular preclinical research. For research use only.
SOMA Andarine S4 Powder 1g
Andarine (S4, GTx-007) powder 1g — ≥98% HPLC purity, COA verified. Selective androgen receptor modulator studied in bone density and muscle tissue models with unique ocular AR research applications. For research use only.
SOMA Cardarine GW501516 Powder 1g
Cardarine (GW501516) powder 1g — ≥98% HPLC purity, COA verified. PPARδ agonist used in fatty acid oxidation, metabolic syndrome, and exercise mimetic research. For research use only.
SOMA Ostarine MK-2866 Powder 1g
Ostarine (MK-2866, Enobosarm) powder 1g — ≥98% HPLC purity, COA verified. The most extensively studied SARM, with completed Phase II clinical trials in muscle wasting and cancer cachexia. For research use only.
SOMA MK-677 Powder 1g
MK-677 (Ibutamoren) powder 1g — ≥98% HPLC purity, COA verified. Orally active ghrelin receptor agonist and GH secretagogue studied in GH deficiency, muscle wasting, and metabolic research. For research use only.
SOMA LGD-4033 Powder 1g
LGD-4033 (Ligandrol) powder 1g — ≥98% HPLC purity, COA verified. High-affinity selective androgen receptor modulator with Phase II clinical data in muscle wasting and bone density. For research use only.
SOMA RAD-140 Powder 1g
RAD-140 (Testolone) powder 1g — ≥98% HPLC purity, COA verified. Potent selective androgen receptor modulator used in muscle wasting and neuroprotection preclinical research. For research use only.
SOMA Enclomiphene
Enclomiphene (trans-clomiphene) is a non-steroidal selective estrogen receptor modulator (SERM) studied for testosterone restoration via HPTA axis stimulation. 27,100 searches/mo — high research interest. ≥98% purity, CoA. For Research Use Only.
SOMA YK-11
YK-11 is a steroidal SARM and partial androgen receptor agonist studied for its unique dual mechanism: AR agonism and myostatin inhibition via follistatin induction. ≥98% purity, third-party CoA. For Research Use Only.
SOMA SR9009 (Stenabolic)
SR9009 (Stenabolic) is a Rev-erb α/β agonist used in circadian biology, metabolic disorder, and exercise mimetic research. Often grouped with SARMs; mechanistically acts on nuclear Rev-erb receptors regulating circadian gene expression. ≥98% purity, CoA. For Research Use Only.
SOMA Cardarine (GW501516)
Cardarine (GW501516, GW1516) is a PPARδ (peroxisome proliferator-activated receptor delta) agonist used in fatty acid oxidation, metabolic syndrome, and endurance biology research. ≥98% purity, third-party CoA. For Research Use Only.
SOMA Andarine (S4)
Andarine (S4, GTx-007) is a selective androgen receptor modulator studied in bone density and muscle tissue models. High AR binding affinity with bone/muscle tissue selectivity. ≥98% purity, CoA. For Research Use Only.
SOMA Ibutamoren (MK-677)
MK-677 (Ibutamoren) is an orally active ghrelin receptor agonist and growth hormone secretagogue studied in GH deficiency, muscle wasting, and metabolic aging models. ≥98% purity, CoA. For Research Use Only.
SOMA Ostarine (MK-2866)
Ostarine (MK-2866, Enobosarm) is the most extensively studied SARM, with completed Phase II clinical trials in muscle wasting and cancer cachexia. ≥98% purity, third-party CoA. For Research Use Only.
SOMA LGD-4033 (Ligandrol)
LGD-4033 (Ligandrol) is a high-affinity selective androgen receptor modulator studied in muscle wasting and bone density preclinical models. ≥98% purity, third-party CoA. For Research Use Only.
SOMA RAD-140 (Testolone)
RAD-140 (Testolone) is a potent selective androgen receptor modulator (SARM) used in preclinical research for muscle wasting models. ≥98% HPLC purity. Third-party CoA provided. For Research Use Only.
What Are SARMs?
SARMs (Selective Androgen Receptor Modulators) are non-steroidal compounds that bind androgen receptors with tissue selectivity — activating receptors in muscle and bone while minimising activity elsewhere, making them distinct from anabolic steroids in preclinical research models.
Selective Androgen Receptor Modulators (SARMs) are a class of non-steroidal compounds designed to bind androgen receptors with tissue selectivity. Unlike anabolic steroids — which activate AR broadly across all androgen-sensitive tissues — SARMs are engineered to preferentially activate receptors in muscle and bone while minimising activity in other tissues.
This selectivity profile makes them valuable research tools for studying androgen-mediated pathways in specific tissue models, including skeletal muscle, cortical bone, and adipose tissue. All Rainbow Peptide SARMs are provided as research chemicals For Research Use Only (RUO) and are not intended for human consumption or therapeutic use.
SARMs vs Steroids
Property Steroids SARMs
Receptor binding Non-selective Tissue-selective
Steroidal structure Yes No (most)
5α-reduction Yes (→DHT) No
Aromatisation Yes (→estrogen) No
Oral bioavailability Variable High (most)
Hepatotoxicity (17α) Yes (oral AAS) Not observed
SARMs by Mechanism
Compound Mechanism Primary Research Use
RAD-140 AR full agonist Muscle, neuroprotection
LGD-4033 AR agonist Muscle wasting
Ostarine AR partial agonist Cachexia (Phase III)
MK-677 Ghrelin receptor GH/IGF-1 axis
Cardarine PPARδ agonist Fat oxidation, metabolic
SR9009 Rev-erb agonist Circadian, metabolic
YK-11 AR + myostatin Myostatin biology
Enclomiphene SERM (ER antagonist) HPTA restoration
SARMs Research Library
View All Research → RAD-140
RAD-140 (Testolone) Research Guide
AR mechanism, muscle and bone preclinical data, neuroprotective research, Phase I clinical context.
Read Guide → MK-677MK-677 (Ibutamoren) Research Guide
Ghrelin receptor agonism, GH/IGF-1 axis, Phase II clinical data from the Merck program.
Read Guide → OstarineOstarine (MK-2866) Research Guide
Most clinically documented SARM. Phase II and Phase III cancer cachexia data.
Read Guide → LGD-4033LGD-4033 (Ligandrol) Research Guide
Basaria 2013 lean mass data, VK5211 Phase II hip fracture study, PK profile.
Read Guide → Clinical DataSARMs Before and After: Clinical Trial Data
Lean mass, bone density, and functional outcomes across published SARMs trials.
Read Guide → 2026 GuideBest SARMs for Research 2026
Categorized by research use: muscle wasting, GH axis, neuroprotection, metabolic, myostatin.
Read Guide →Frequently Asked Questions
What are SARMs?
SARMs (Selective Androgen Receptor Modulators) are non-steroidal compounds that bind to androgen receptors in a tissue-selective manner. Unlike anabolic steroids, which activate AR receptors broadly, SARMs are designed to target specific tissues — primarily muscle and bone — with reduced androgenic activity in other tissues. They are sold For Research Use Only (RUO) and are not approved for human therapeutic use.
What SARMs does Rainbow Peptide carry?
Rainbow Peptide carries 9 research-grade SARMs: RAD-140 (Testolone), LGD-4033 (Ligandrol), Ostarine (MK-2866), MK-677 (Ibutamoren), Andarine (S4), Cardarine (GW501516), SR9009 (Stenabolic), YK-11, and Enclomiphene. All are ≥98% HPLC purity with independent third-party CoA on every order.
What purity should research SARMs be?
Research-grade SARMs should be ≥98% pure by HPLC. Identity should be confirmed by mass spectrometry. A Certificate of Analysis (CoA) from an independent third-party laboratory — with a traceable lot number — should accompany every batch. All Rainbow Peptide SARMs are HPLC-verified to ≥98% purity.
Is it legal to buy SARMs online?
In the United States, SARMs are legal to purchase for research purposes when sold explicitly For Research Use Only (RUO). They are not scheduled controlled substances under federal law but are not approved pharmaceutical drugs. Laws vary internationally — buyers are responsible for verifying legal status in their jurisdiction.
What is the difference between SARMs and peptides?
Peptides are short chains of amino acids that act on peptide receptors or GPCRs. SARMs are small-molecule non-steroidal compounds that directly bind androgen receptors. They have different mechanisms, pharmacokinetics, and research applications. Many researchers use both categories in complementary protocols.
Which SARMs have the most clinical research data?
Ranked by clinical evidence: (1) Ostarine (MK-2866) — Phase II and Phase III data in cancer cachexia (NSCLC); (2) LGD-4033 — Phase II data (+1.21 kg lean mass at 1 mg/day in 21 days, Basaria 2013) and Phase II hip fracture data (VK5211); (3) MK-677 — 2-year RCT in elderly (Nass 2008, +1.6 kg lean mass); (4) RAD-140 — Phase I NCT02207842.
Also Researching Peptides?
46 HPLC-verified compounds across peptides and SARMs — SOMA, AXON, AURA, REGENERIS, APEX.