Every guide is researched using peer-reviewed studies and independent data — no sponsored content, no hidden agendas. All 43 compounds we track have a full research guide, plus head-to-head comparisons and ranked buying guides.
58 articles
ACP-105 is a nonsteroidal selective androgen receptor modulator (SARM) developed by Ligand Pharmaceuticals, one of the lesser-studied compounds in the SARM…
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Cardarine (GW-501516) is a synthetic PPAR-delta (PPARδ) receptor agonist originally developed by GlaxoSmithKline and Ligand Pharmaceuticals in the…
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LGD-4033 has one of the most rigorous published human SARM trials — a real 76-man, placebo-controlled study. Here's exactly what it found.
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MK-677 has more real human clinical trial data than almost any other compound discussed on this site — here's what it actually shows.
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Ostarine (MK-2866, Enobosarm) is a nonsteroidal selective androgen receptor modulator (SARM) originally developed by GTx Inc., one of the earliest and…
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What the published research actually shows about RAD-140 (Testolone) — including real oncology trial data most guides leave out.
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RAD-150 is described in the research-chemical marketplace as a long-acting nonsteroidal selective androgen receptor modulator (SARM), related in naming…
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S4 (Andarine) is a nonsteroidal selective androgen receptor modulator (SARM) developed by GTx Inc.
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SR9009 (Stenabolic) is a synthetic REV-ERBα agonist developed by researchers at the Scripps Research Institute as a tool compound for studying…
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YK-11 is a synthetic steroidal compound studied as a partial androgen receptor agonist with additional reported activity as a myostatin inhibitor, making…
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5-Amino-1MQ is a small-molecule compound studied as a selective inhibitor of NNMT (nicotinamide N-methyltransferase), an enzyme involved in cellular energy…
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AOD-9604 is a modified fragment of human growth hormone corresponding to amino acids 176-191 of the hGH sequence, engineered to isolate the fat-metabolizing…
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ARA-290 (Cibinetide) is a synthetic peptide derived from the structure of erythropoietin (EPO), engineered to retain EPO's tissue-protective signaling while…
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BPC-157 is one of the most-discussed peptides online — and one with almost no completed human trials. Here's an honest look at where the evidence actually…
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CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH), engineered for extended stability in circulation compared to native GHRH.
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DSIP (Delta Sleep-Inducing Peptide) is a naturally occurring nonapeptide first isolated from rabbit brain tissue in the 1970s, named for its association…
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Enclomiphene is the trans-isomer of clomiphene citrate, a selective estrogen receptor modulator (SERM) long used in fertility medicine.
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Epithalon (also spelled Epitalon) is a synthetic tetrapeptide developed by Russian researcher Vladimir Khavinson as an analog of epithalamin, a pineal gland…
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GHK-Cu (Copper Peptide, Glycyl-L-Histidyl-L-Lysine-Copper) is a naturally occurring copper-binding tripeptide found in human plasma, saliva, and urine.
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The GLOW Blend combines GHK-Cu, TB-500, and BPC-157 — three peptides individually studied in skin, tissue-repair, and regenerative research — into a single…
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Glutathione (L-Glutathione) is a naturally occurring tripeptide composed of glutamate, cysteine, and glycine, synthesized in nearly every cell in the human…
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IGF-1 LR3 (Long Arg3-IGF-1) is a synthetic, modified analog of endogenous Insulin-like Growth Factor-1, engineered with an extended amino-acid sequence and…
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Ipamorelin is usually described as the most "selective" GH secretagogue — here's the actual study that earned it that reputation.
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The KLOW Blend combines four peptides studied individually in tissue-repair literature — BPC-157, TB-500, KPV, and GHK-Cu — into a single research formulation.
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KPV is a tripeptide fragment (Lysine-Proline-Valine) derived from the C-terminal end of alpha-melanocyte-stimulating hormone (alpha-MSH).
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Kisspeptin-10 is a synthetic decapeptide fragment of kisspeptin, a naturally occurring hormone that plays a central regulatory role in reproductive…
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MOTS-c is a 16-amino-acid peptide encoded within the mitochondrial genome, discovered in 2015 and classified as a "mitochondrial-derived peptide." It has…
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Melanotan II is a synthetic, non-selective melanocortin receptor agonist originally developed in the 1990s at the University of Arizona as a candidate for…
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NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme present in every living cell, central to cellular energy metabolism and DNA repair.
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PT-141 (Bremelanotide) is a synthetic peptide and melanocortin receptor agonist.
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Retatrutide is a synthetic peptide developed by Eli Lilly that acts as a triple agonist at GLP-1, GIP, and glucagon receptors simultaneously — a novel…
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SLU-PP-332 is a synthetic small molecule developed by researchers at Saint Louis University as a selective agonist of the estrogen-related receptors (ERRα,…
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SS-31 (Elamipretide) is a synthetic, mitochondria-targeted tetrapeptide developed by researchers Hazel Szeto and Peter Schiller.
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Semaglutide is a GLP-1 receptor agonist and one of the most clinically established compounds in this category, holding FDA approval under three brand names…
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Sermorelin is a synthetic analog of growth hormone-releasing hormone corresponding to the first 29 amino acids of native GHRH (GHRH 1-29).
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TB-500 is a synthetic version of a peptide fragment derived from Thymosin Beta-4, a naturally occurring protein involved in actin regulation and cell migration.
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Tesamorelin is a synthetic analog of growth hormone-releasing hormone (GHRH) and is notably the only compound in this category with FDA approval — marketed…
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Thymalin is a peptide bioregulator complex extracted from calf thymus tissue, studied extensively within Russian gerontology and immunology research led by…
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Thymosin Alpha-1 is a naturally occurring peptide derived from the thymus gland, studied for its role in modulating immune function.
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The Wolverine Blend combines BPC-157 and TB-500 — two of the most-studied peptides in tissue-repair research — into a single formulation, named informally…
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Selank is a synthetic peptide analog of tuftsin, an immunomodulatory tetrapeptide, extended with additional amino acids for improved stability.
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Semax is a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH 4-10), developed in Russia and studied since the 1980s as a…
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PCT is one of the most misunderstood topics in the research community. This guide explains the underlying endocrinology and the bloodwork that actually…
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Both are nonsteroidal SARMs with real human trial data — but the trials measured completely different things. Here's what that means for the comparison.
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Neither peptide has completed human trials — here's an honest, evidence-based comparison of the two most-discussed recovery peptides online.
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This isn't really a head-to-head — the two peptides act on different receptors entirely, which is exactly why they're so often stacked together.
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MK-677 is commercially grouped with SARMs but isn't technically one — here's what that distinction actually means for the comparison.
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One is FDA-approved under three brand names; the other is still investigational. That regulatory gap matters more than mechanism alone.
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Ostarine's Phase 2/3 trial history and LGD-4033's Phase 1 lean-mass data tell two very different evidence stories — here's the honest comparison.
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Cardarine's rodent carcinogenicity findings and SR-9009's oral bioavailability problem — the two red flags every endurance-compound comparison should mention.
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Different mechanisms, different research histories — most human NAD+ trials actually study its precursors, not NAD+ itself.
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SS-31 has a more advanced clinical trial history in mitochondrial disease; GHK-Cu's strongest human evidence is topical and cosmetic.
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Ranked strictly by depth of published human and preclinical trial data — including which SARMs we track have essentially no human evidence at all.
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BPC-157, TB-500, GHK-Cu, Thymosin Alpha-1 and KPV ranked with honest evidence-strength caveats for each.
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Computed directly from live vendor pricing data, not estimates — the lowest confirmed entry price for each SARM we track.
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Ranked by two real, checkable factors — independent (not in-house) purity testing, and how many products we track from that vendor.
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Ranked with regulatory status front and center — because that's the single biggest differentiator in this category, more than mechanism alone.
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This isn't a single ranking — it's a goal-by-goal breakdown of which compound has the evidence to back its reputation, and which don't.
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