Plain-language summaries of the peptide and compound literature: mechanisms, trial data, comparisons and lab practice, with sources cited.
203 articles · 21 compound hubs · 9 subject areas
PCT & Support
Mesterolone (1α-methyl-DHT; Proviron) is an oral androgen that uniquely achieves bioavailability without C17α-alkylation, resulting in no significant hepatotoxicity. Its primary pharmacological interest is extremely high SHBG affinity and anti-estrogenic activity. Research overview of mechanism, SHBG displacement, and male fertility applications.
6 min read
Anabolic Research
Turinabol (4-chloro-17α-methyl-testosterone; CDMT) was developed in East Germany for Olympic doping research. It combines the Δ1,4-diene of methandrostenolone with a 4-chloro substitution that eliminates aromatization. Research overview of structure, selectivity, and CDMT detection history.
6 min read
PCT & Support
Oxymetholone is a C17α-alkylated androstane with a unique 2-hydroxymethylene group that confers paradoxical estrogenic activity despite non-aromatizability. Research overview of its molecular pharmacology, extraordinary anabolic potency, erythropoietic effects, and hepatotoxicity profile.
7 min read
Anabolic Research
Injectable stanozolol (stanozolol depot, Winstrol depot) is an aqueous suspension of micronized stanozolol crystals — unlike oil-based injectables, it relies on direct tissue absorption from the injection site. Research overview comparing oral vs. injectable routes, pharmacokinetics, and tissue-specific effects.
6 min read
Anabolic Research
Methenolone enanthate (Primobolan depot) and methenolone acetate (Primobolan oral) are 1-methyl-5α-dihydrotestosterone derivatives with the lowest androgenic activity among injectable anabolics. Research overview of structure, unique oral bioavailability mechanism, and body composition applications.
6 min read
PCT & Support
Drostanolone propionate and enanthate (Masteron) are 2α-methyl-5α-dihydrotestosterone derivatives with anti-estrogenic properties, high androgen receptor affinity, and absence of aromatization. Research overview of structure, mechanism, and cutting-phase applications.
6 min read
Research Science
Cardarine (GW501516) is a PPARδ/PPARβ agonist that shifts skeletal muscle metabolism toward fat oxidation, improving endurance and body composition in preclinical models. Research overview of its mechanism, carcinogenicity controversy, and role in metabolic research.
6 min read
Anabolic Research
C17α-alkylated oral anabolic steroids cause dose-dependent hepatotoxicity via BSEP inhibition, cholestasis, and oxidative stress. Research overview of hepatotoxicity mechanisms, biomarkers, histopathology, and hepatoprotective co-treatments including TUDCA and NAC.
7 min read
Anabolic Research
TUDCA (tauroursodeoxycholic acid) is a hydrophilic bile acid with hepatoprotective, anti-apoptotic, and ER stress-reducing properties. Research overview of its mechanism, pharmacokinetics, and use as a liver support compound in oral steroid research protocols.
6 min read
Anabolic Research
Selective androgen receptor modulators (SARMs) achieve tissue-selective AR agonism through ligand-dependent receptor conformation, differential coactivator recruitment, and absence of 5α-reduction. Research overview of SARM mechanisms and the molecular basis of selectivity.
7 min read
Anabolic Research
LGD-4033 (ligandrol, VK5211) is a non-steroidal SARM developed by Ligand Pharmaceuticals with high AR affinity and significant lean mass effects in clinical trials. Research overview of its mechanism, human clinical data, and pharmacokinetics.
6 min read
Anabolic Research
RAD-140 (testolone) is a non-steroidal SARM with high AR binding affinity and tissue selectivity favoring muscle over prostate. Research overview of its mechanism, A:A ratio, pharmacokinetics, and applications in anabolic research models.
6 min read
Growth Hormone
MK-677 (ibutamoren) is an orally active, non-peptide ghrelin mimetic that activates the GHS-R1a receptor to stimulate pulsatile GH release and elevate IGF-1. Research overview of its mechanism, pharmacokinetics, and applications in GH axis research.
6 min read
Weight Loss & GLP-1
How to source research-grade retatrutide in Europe. What to look for in a verified supplier — HPLC certificates, EU warehouse stock, ZPHC-quality vials and pens. Updated 2025.
7 min read
PCT & Support
Exemestane (Aromasin) is a steroidal, mechanism-based irreversible aromatase inhibitor. Unlike anastrozole and letrozole, exemestane permanently inactivates CYP19A1 by forming a covalent bond with the enzyme. Research profile covering mechanism, androgenic metabolites, and protocol applications.
6 min read
Peptides & Recovery
Tanning peptides including Melanotan II and afamelanotide stimulate UV-independent melanogenesis via MC1R activation. Research overview of eumelanin vs. phaeomelanin biology, MC1R variants, and photoprotection mechanisms.
6 min read
Peptides & Recovery
Sexual health peptides including PT-141 (bremelanotide), oxytocin analogues, and kisspeptin act on central neural circuits to modulate sexual desire, arousal, and function. Research overview of the key peptide targets in sexual health research.
6 min read
Sexual Health & Tanning
PT-141 (bremelanotide) acts centrally via MC4R to enhance sexual arousal and motivation, while PDE5 inhibitors (sildenafil, tadalafil) act peripherally on vascular smooth muscle. Mechanistic comparison for selecting the appropriate research compound.
6 min read
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