Research-aware reading on recovery, performance and body composition.
Pigmentary Changes Are the Defining Trial Finding Trial-reported pigmentary changes include: Diffuse skin darkening — expected pharmacologic effect, present in >90% of treated participants. Darkening of existing nevi — …
Read articleHow to Reconstitute Melanotan-1 Melanotan-1 (MT-1) is the linear melanocortin peptide afamelanotide — a 13-amino-acid analog of alpha-melanocyte-stimulating hormone (alpha-MSH) that binds melanocortin receptors (chiefly…
Read articleMelanotan-1 (afamelanotide) is a synthetic analog of alpha-MSH that stimulates melanin production for photoprotection. FDA-approved for erythropoietic protoporphyria (EPP) as a subcutaneous implant. Community protocols …
Read articleMelanotan-1 (afamelanotide, [Nle4-D-Phe7]-alpha-MSH) is a synthetic analog of alpha-melanocyte-stimulating hormone (alpha-MSH). It is one of the few research peptides with a direct path to FDA-approved clinical use — af…
Read articleSelf-Reported Community Adverse Events Note on labeling: the events below come from r/peptides, r/PeptideTherapy, and inflammation-focused community forums for KPV use (oral, subcutaneous, intranasal). Injection-site re…
Read articleHPG-Axis-Specific Considerations The kisspeptin mechanism is upstream of GnRH. Pharmacologic effects on the HPG axis are the desired endpoint in most trials — not adverse events — but they have implications for users: P…
Read articleMechanism of Action: The GnRH-LH/FSH Cascade Kisspeptin sits at the very top of the hypothalamic-pituitary-gonadal (HPG) axis. Understanding this cascade explains virtually all of its clinical effects. The Signaling Cha…
Read articleHow to Reconstitute Ipamorelin Ipamorelin is a growth hormone secretagogue — it signals the pituitary gland to release growth hormone in a pulsatile, natural pattern. It arrives as a lyophilized powder and needs to be m…
Read articleAffiliate disclosure: vendor links in this article are affiliate links — The Peptide Catalog may earn a commission if you buy through them, at no additional cost to you. Where These Numbers Come From Community Ipamoreli…
Read articleIpamorelin is the most selective growth hormone releasing peptide (GHRP) available. It triggers GH release from the pituitary without raising cortisol or prolactin — a selectivity profile no other GHRP matches. That dis…
Read articleAffiliate disclosure: vendor links in this article are affiliate links — The Peptide Catalog may earn a commission if you buy through them, at no additional cost to you. Where These Numbers Come From IGF-1 LR3 is a rese…
Read articleIGF-1 LR3 is a modified analog of insulin-like growth factor 1 with a dramatically extended half-life and enhanced potency. The LR3 modification — an arginine-to-glutamic acid substitution at position 3 plus a 13-amino …
Read articleThymosin Beta 4 (TB-500) and Tissue Repair Feb 21, 2021 TB-500 / Thymosin beta 4 is made up of 43 amino acids, making it a oligopeptide, and has a molecular weight of 4.9 kDa. It is considered to be present in most tiss…
Read articleThymosin Alpha-1 Peptide: Research Into Immune Cell Development and Functions Sep 23, 2024 Fig 1 – Thymosin Alpha-1 Chemical Structure Latest Research on Tα1 Peptide Thymosin Alpha-1 and Immune Cell Maturation Dominari …
Read articleThe Potential of Anabolism and Synergism in a Sermorelin & Ipamorelin Blend Mar 23, 2026 The same cells also appear to possess another set of receptors called growth hormone secretagogue receptors 1a (GHS-R1a), and endo…
Read articleTesamorelin Peptide: Potential Influence on the Hypothalamic–Pituitary–Somatotropic Axis Sep 27, 2024 Latest Research on Tesamorelin Fig 1 – Tesamorelin Chemical Structure Tesamorelin Peptide and Pituitary Cells Tesamor…
Read articleTesamorelin & Ipamorelin Blend: Synergistic Potential in Pituitary Cells Oct 31, 2024 Tesamorelin is a synthetic peptide that achieves this GHRH-R activation by mimicking the structure and actions of the native growth h…
Read articleSS-31 Peptide: Research in Mitochondrial Functionality Jan 3, 2024 Distinguishing itself with a distinctive cationic 3+ charge under physiological pH conditions, this molecule exhibits potentially notable cell membrane …
Read articleSermorelin & GHRP-2 Synergistic Potential on Growth Hormone and IGF-1 Synthesis Mar 17, 2026 As these peptides are posited to act at different entry points in the same endocrine cells, researchers have considered invest…
Read articleSelank Peptide: Potential Support for Neurotransmitters and Neurotrophins Sep 5, 2025 Research conducted in laboratory settings may suggest that the PGP motif may facilitate interactions with membrane transport systems,…
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