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A September 18 FDA warning letter to Empower Pharmacy describes alleged Section 503A failures involving compounded products FDA characterized as copies of marketed semaglutide and tirzepatide products. The action offers a documented view of the agency’s current compounding-enforcement posture.
Read article→General Research
Amylin weight loss drugs are the next big idea in obesity research. Learn what amylin is, what the new 2026 trials reported and what still isn't known.
Read article→Eight online peptide sellers got FDA warning letters in 2026. Here's what the FDA said, the four mistakes behind every letter and what's happened since.
Read article→Viking Therapeutics reported top-line results from VK2735-102, a randomized maintenance study of its investigational dual GLP-1/GIP agonist — a separate data point from Lilly’s retatrutide TRIUMPH-2 results.
Read article→Lilly’s newly announced 80-week TRIUMPH-2 findings add a pivotal clinical-data update to retatrutide research, while the compound remains investigational and detailed results await scientific presentation.
Read article→FDA’s August 28 approval of Mimrylo (rusfertide), an injectable hepcidin peptide mimetic, adds a first-in-class product to the peptide-therapeutics field. The decision was supported by the Phase 3 VERIFY study…
Read article→The FDA Pharmacy Compounding Advisory Committee voted narrowly in July 2026 to recommend six peptides including BPC-157, KPV, and TB-500 for addition to the 503A Bulk Drug Substances List, marking…
Read article→Harvard professor David Sinclair's lab has demonstrated that aging is not simply wear and tear — it is an information problem. In 2026, the FDA cleared the first human trial…
Read article→The 503A Bulks List is a regulatory designation that allows licensed compounding pharmacies to prepare substances for individual patients without FDA approval. Understanding this pathway is essential for researchers tracking…
Read article→The research peptide market has undergone a significant consolidation in 2025–2026. The closure of Peptide Sciences, FDA enforcement actions against multiple vendors, and new regulatory scrutiny have reduced the number…
Read article→TB-500, a synthetic version of Thymosin Beta-4, was reviewed by the FDA’s Pharmacy Compounding Advisory Committee on July 23, 2026. The panel voted 8–6 to recommend it, against FDA staff…
Read article→KPV (Lys-Pro-Val) is a naturally occurring tripeptide derived from the C-terminus of alpha-melanocyte-stimulating hormone (alpha-MSH). Research has focused on its anti-inflammatory activity in gut epithelial cells, particularly its ability to…
Read article→GHK-Cu (glycyl-L-histidyl-L-lysine copper complex) has been studied extensively for its role in collagen and glycosaminoglycan synthesis, antioxidant gene expression, and skin barrier repair. It is one of the highest-volume compounds…
Read article→NAD+ (nicotinamide adenine dinucleotide) has emerged as one of the most studied molecules in longevity research. As a co-substrate for more than 500 enzymes, it plays a central role in…
Read article→Retatrutide is a synthetic peptide that simultaneously activates three metabolic hormone receptors: GLP-1, GIP, and glucagon. This triple agonist mechanism distinguishes it from earlier generation GLP-1 analogues and has made…
Read article→Compound Research Guides
BPC-157 (Body Protection Compound-157) is a synthetic 15-amino acid peptide derived from a protein found in the gastric mucosa. It has been studied extensively in preclinical models…
Read guide→TB-500 is the name most often used for a synthetic version of Thymosin Beta-4 (Tβ4), an actin-binding protein found in almost every cell. Preclinical research has examined…
Read guide→GHK-Cu (Glycine-Histidine-Lysine Copper complex) is a naturally occurring copper-binding tripeptide first isolated from human plasma. It has been studied extensively for its role in wound healing, collagen…
Read guide→NAD+ (Nicotinamide Adenine Dinucleotide) is a coenzyme found in every living cell, functioning as a co-substrate for more than 500 enzymatic reactions. Its role in cellular energy…
Read guide→Tesamorelin is a synthetic 44-amino acid peptide analogue of endogenous growth hormone-releasing hormone (GHRH), modified with a trans-3-hexenoic acid group at the N-terminus to increase stability. It…
Read guide→PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide derived from Melanotan II. It acts as a non-selective agonist of melanocortin receptors and has been studied for its effects…
Read guide→SS-31 (Elamipretide; also known as MTP-131 and Bendavia) is a synthetic tetrapeptide designed to selectively concentrate in the inner mitochondrial membrane through electrostatic and hydrophobic interactions with…
Read guide→KPV (Lys-Pro-Val) is a synthetic tripeptide corresponding to the C-terminal amino acids 11-13 of alpha-melanocyte stimulating hormone (α-MSH). It has been studied in preclinical models for its…
Read guide→MOTS-c (Mitochondrial Open Reading Frame of the 12S rRNA-c) is a 16-amino acid peptide encoded within the 12S rRNA gene of the mitochondrial genome. Its discovery in…
Read guide→Epitalon (Ala-Glu-Asp-Gly) is a synthetic tetrapeptide analogue of Epithalamin, a peptide bioregulator isolated from bovine pineal gland extract by Vladimir Khavinson and colleagues in the 1980s. It…
Read guide→Semax (Met-Glu-His-Phe-Pro-Gly-Pro) is a synthetic heptapeptide derived from the ACTH(4-7) sequence with a Pro-Gly-Pro C-terminal extension designed to increase stability. It has been studied extensively in Russian…
Read guide→Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) is a synthetic heptapeptide derived from the immunomodulatory tetrapeptide tuftsin (Thr-Lys-Pro-Arg) with a Pro-Gly-Pro C-terminal extension. It has been studied in Russian research programs in…
Read guide→AOD-9604 (Anti-Obesity Drug 9604) is a synthetic peptide corresponding to amino acids 176-191 of human growth hormone (hGH), with an additional tyrosine residue at the N-terminus. It…
Read guide→KLOW is a proprietary research blend developed by HAUZ Research combining four well-characterized peptides: BPC-157 (10mg), TB-500 (10mg), GHK-Cu (50mg), and KPV (10mg). Each component has been…
Read guide→The BPC-157/TB-500 research blend combines BPC-157 and TB-500 (synthetic thymosin beta-4) in a single lyophilized preparation. Both have been studied for tissue repair in preclinical models, through…
Read guide→News & Updates
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