Guides

Understanding Research Peptides

Clear and sourced guides on molecules, quality analyzes and conservation of peptides.

9 min readPeptide research watchThis month's new publications on the molecules in our catalogue, summarised and sourced.Read the guide
4 min readPrice-per-milligram comparisonThe price per milligram for every format in the catalogue: vial, pen, box.Read the guide
4 min readKPV: the tripeptide derived from α-MSHLys-Pro-Val, a fragment of α-MSH: origin, intestinal transport and work on inflammation.Read the guide
4 min readDSIP: the delta sleep peptideDiscovered in 1977 and still without a known receptor: what we know about DSIP and sleep.Read the guide
4 min readEpithalon: the AEDG tetrapeptideTelomerase, melatonin, ageing: what research on Epithalon says, and its limits.Read the guide
4 min readKisspeptin: the puberty signalFrom the KISS1 gene to the GPR54 receptor: the peptide that controls the reproductive axis.Read the guide
4 min readVIP: vasoactive intestinal peptideA 28-amino-acid neuropeptide: receptors, roles studied and the story of aviptadil.Read the guide
4 min readARA-290: the protective fragment of EPOThe EPO-derived peptide aimed at tissue repair, with no effect on red blood cells.Read the guide
4 min readAHK-Cu: the copper tripeptide for hairGHK-Cu's cousin, studied on the hair follicle: structure and published work.Read the guide
7 min readSemaglutide: the vial is not the Wegovy penThe medicine Wegovy has a published schedule. The PeptidLab vial is a lyophilized reagent, not that pen.Read the guide
7 min readTirzepatide: the published schedule and the vial massMounjaro and Zepbound are pens. The lyophilized vial is a reagent, and its mass is not the weekly dose.Read the guide
6 min readSermorelin: a dose per kilo, not per vial30 µg/kg at bedtime in the historical Geref label. A 5 or 10 mg vial is a fixed mass.Read the guide
6 min readHGH Fragment 176-191: it is not AOD9604Fragment 176-191 has no established human dose. AOD9604 is a different peptide, with its own trials.Read the guide
6 min readThymosin alpha-1: 1.6 mg, twice a weekZadaxin specifies 1.6 mg subcutaneously, twice a week. A 5 or 10 mg vial is used to calculate the volume.Read the guide
6 min readSnap-8: a cream octapeptide, not an injectionThe "10%" in the manufacturer's file is a solution already diluted to 0.05% peptide. No injection study is published.Read the guide
6 min readAdamax: a Semax analogue with no human trialAdamax is a research molecule close to Semax. No clinical trial sets its quantity.Read the guide
7 min readSLU-PP-332: a small molecule studied in miceNot a peptide, no human trial. The mg/kg in articles do not convert into a vial volume.Read the guide
7 min readFSH and HCG: read units, don't invent a cycle75 IU of FSH and 5,000 IU of HCG: what the label means, and what fertility leaflets do not transfer to a research vial.Read the guide
4 min read5-Amino-1MQ: a small molecule, not a peptideNNMT inhibitor studied on nicotinamide metabolism and NAD. Three vial formats, one single setting: the laboratory.Read the guide
6 min readCJC-1295 and ipamorelin: two signals, three productsA GHRH analogue, a ghrelin pentapeptide, and the DAC question. An overview of the catalogue vials.Read the guide
4 min readSS-31: the peptide that targets the mitochondrionElamipretide, cardiolipin, respiratory chain. What the name SS-31 covers, and what the vial is not.Read the guide
4 min readKlow 80 mg: reading a blend, not a moleculeFour usual peptides, a single mass on the label. The useful reflex is the batch certificate.Read the guide
4 min readPT-141 and melanotan: same family, not the same peptideThree α-MSH analogues. Three receptors often cited. One single rule: do not substitute one for another.Read the guide
The basics What is a peptide? Definition, mode of action and areas of study, explained simply. Read the guide
5 min read Weight loss peptide: what the research says GLP-1, tirzepatide, R3TA, MOTS-c: peptides studied in metabolism, explained without promise. Read the guide
5 min read R3TA, tirzepatide, semaglutide: what are the differences? One, two or three receptors: what distinguishes the three generations of agonists studied in metabolism. Read the guide
4 min read R3TA in pen or vial: which format to choose? R3 pen or lyophilized vial: differences, storage and price per milligram of each format. Read the guide
6 min read How to read a certificate of analysis (HPLC and mass spectrometry) Purity, identity, batch number: points to check on a certificate, and warning signs. Read the guide
4 min read Storing freeze-dried peptides: the practical guide Temperature, light, humidity: the rules for preserving the stability of a peptide before and after reconstitution. Read the guide
5 min read BPC-157 and TB-500: two peptides studied in regeneration Origin, structure, areas of research: what brings these two peptides together and what distinguishes them. Read the guide
4 min read GHK-Cu: everything you need to know about the copper peptide Discovered in 1973, GHK-Cu is one of the most studied peptides in scientific cosmetics and wound healing. Read the guide
4 min read Semax and Selank: nootropic peptides studied Two heptapeptides developed in Russia: one studied in cognition, the other on the stress response. Read the guide
4 min read MOTS-c: the mitochondrial peptide studied in metabolism Encoded by mitochondrial DNA, MOTS-c is studied for its role in energy metabolism. Read the guide
5 min read HGH and tesamorelin: what are the differences? One is growth hormone, the other triggers its release: two levels of action on the same axis. Read the guide
4 min read Bacteriostatic water: what it is used for and how to store it Benzyl alcohol, multidose bottle, 28 days after opening: what distinguishes bacteriostatic water from sterile water. Read the guide
4 min read Supplies for one vial: water, syringes, swabs What you need next to a freeze-dried vial, the free kit from €99.99, and when to take a box of 100. Read the guide
5 min read GIP: long-forgotten incretin Discovered before GLP-1, ruled out for thirty years, GIP is today one of the three targets of R3TA. Read the guide
5 min read Cagrilintide: the amylin analogue explained Satiety hormone, combination with GLP-1, R3TA blend: what research is studying about cagrilintide. Read the guide
5 min read NAD+: cofactor of energy metabolism It is not a peptide: NAD+ is the cofactor that cells use to produce energy. Mechanism, sirtuins, research limitations. Read the guide
5 min read IGF-1 LR3: the growth factor Long Arg3 Natural IGF-1, LR3 variant, difference from growth hormone: structure, mechanism and research framework. Read the guide
5 min read MT-1 and MT-2: two analogues of α-MSH Afamelanotide and Melanotan II: structure, melanocortin receptors, what research is studying — and what these molecules are not. Read the guide