Peptide Research & News
Guides, comparisons, and deep dives into the science of research peptides.
Dosage research guides
Explore formulation details, research context and laboratory concentration calculations by compound.
Klow Peptide Dosage: How Much Is Used in Research
KLOW dosage frequency, daily-dose evidence and concentration calculations for the four-peptide 80 mg blend.
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Glow Peptide Dosage: How Much Is Used in Research
Understand GLOW dosage frequency, daily-dose evidence and the 30 mg blend composition.
Read moreMK-677 Dosage: How Much Is Used in Research
Nearly every MK-677 trial used 25mg once a day by mouth, from 7-day crossovers to a 2-year study. What those trials measured and what the figure leaves open.
Read moreSemax Nasal Spray vs Injection: What the Research Shows
Radiolabelled Semax reached rat brain within two minutes of intranasal dosing. What that number means, and the degradation it does not prevent.
Read moreSelank Nasal Spray vs Injection: What the Research Shows
Selank was studied intranasally from the start, and its brain pharmacokinetics were measured that way. What the tritium-labelling work established.
Read moreNAD+ Nasal Spray vs Injection: What the Research Shows
Intranasal NAD+ raises brain NAD+ in rodents. Whether that changes outcome depends on the model. What the published animal work actually measured.
Read moreSemax vs Cerebrolysin: What the Research Compares
A defined heptapeptide and a porcine brain hydrolysate. Two Russian-tradition neuro compounds that differ in almost everything except their research territory.
Read moreThymalin vs Thymosin Alpha-1: What's the Difference?
Both come from the thymus, but one is a standardised extract and the other a defined 28-residue peptide with a modern clinical record. The comparison, plainly.
Read moreDSIP vs Melatonin: What the Research Compares
A nonapeptide found during sleep experiments and a pineal hormone with decades of trials. How the two sleep-research compounds differ in chemistry and evidence.
Read moreGHK-Cu vs Pal-GHK: What the Research Compares
Same three amino acids, two different passengers: one carries copper, the other a fatty acid. How the modification changes what each tripeptide is for.
Read morePT-141 vs Melanotan 2: What the Research Compares
PT-141 is a metabolite of Melanotan 2, one chemical group apart. How the two melanocortin peptides diverged, and which one became an approved drug.
Read moreCJC-1295 vs Sermorelin: What the Research Compares
Both are built on the same 29 amino acids of GHRH. Four substitutions and an albumin anchor separate them, and the difference is measured in days.
Read moreSS-31 vs MOTS-c: Two Mitochondrial Peptides Compared
Both get called mitochondrial peptides. One is a synthetic tetrapeptide that binds cardiolipin; the other is encoded by mitochondrial DNA itself.
Read moreKisspeptin-10 vs Kisspeptin-54: What the Research Shows
Same gene, same receptor, different lengths. How the two kisspeptin fragments differ in half-life, and which one each landmark human study actually used.
Read moreEpitalon vs Thymalin: What the Research Compares
Two peptides from the same St Petersburg research programme, modelled on two different organs. How a pineal tetrapeptide and a thymic preparation differ.
Read moreTB-500 vs Thymosin Beta-4: What's the Difference?
TB-500 is sold as synthetic thymosin beta-4, but the name often covers a fragment. The full protein, the active domain, and what the research studied.
Read moreAOD-9604 vs HGH Fragment 176-191: What's the Difference?
AOD-9604 is HGH fragment 177-191 with one added tyrosine. Where the two names overlap, where they differ, and what the human studies of AOD-9604 reported.
Read moreNAD+ vs NMN vs NR: How the Three Molecules Differ
One coenzyme and its two precursors. How NAD+, NMN and NR differ chemically, how cells convert one into another, and which human trials tested which.
Read moreIpamorelin vs CJC-1295: What the Research Compares
A five-amino-acid ghrelin-receptor peptide and a 30-residue GHRH analogue. Different receptors, different signals, and one reason they are studied together.
Read moreCJC-1295 DAC vs No DAC: What the Modification Changes
One version lasts about thirty minutes in circulation, the other persists for days. The DAC group is the entire difference. Here is the chemistry behind it.
Read moreTesamorelin vs Sermorelin: What the Research Shows
Both are GHRH analogues, but one is a stabilised 44-amino-acid peptide with phase 3 trials and the other a 29-residue fragment. What the literature ran.
Read moreSemax Dosage: How Much Is Used in Research
Published Semax studies span 200-600mcg daily intranasal in cognitive work to 12-18mg in stroke trials. What the literature used, and what it leaves open.
Read moreSermorelin vs Ipamorelin: What the Research Compares
Sermorelin and ipamorelin act on separate receptors and neither has a modern trial record. What the published work established, and what it never tested.
Read moreTesamorelin vs CJC-1295: What the Research Compares
Both extend GHRH's half-life, but by different engineering: DPP-4 resistance versus covalent albumin binding. One lasts hours, the other days.
Read moreTesamorelin vs Ipamorelin: What the Research Compares
Tesamorelin and ipamorelin reach growth hormone through different receptors, and their evidence bases are nowhere near equal. What the trials actually ran.
Read moreNAD+ Dosage: How Much Is Used in Research
Human NAD+ trials tested precursors, not NAD+ itself. NR trials used up to 1000mg daily, NMN trials 250mg. Direct NAD+ dosing has almost no record.
Read moreIpamorelin Dosage: How Much Is Used in Research
The one human trial infused 0.03mg/kg IV twice daily for post-surgical gut motility, then development stopped. Every other ipamorelin figure is convention.
Read moreMOTS-c Dosage: How Much Is Used in Research
Mouse protocols used 0.5-5mg/kg/day injected, for up to 8 weeks (Lee 2015). No human trial has dosed MOTS-c. What the rodent record actually reports.
Read moreGHK-Cu Dosage: How Much Is Used in Research
GHK-Cu protocols split by route: topical studies cluster at 0.1-2%, injectable work uses far less, and copper load sets the ceiling. What the literature used.
Read moreTesamorelin Dosage: How Much Is Used in Research
Published tesamorelin trials converged on 2mg once daily, subcutaneous. What the clinical literature actually used, and what it does not establish.
Read moreKlow vs. Glow Peptide: What's the Difference? (2026)
Klow is Glow plus KPV, at roughly 2.5x the GHK-Cu. The composition-by-composition comparison, what KPV adds, and how researchers choose between them.
Read moreSS-31 (Elamipretide): FDA Approval, Forzinity, and What It Means for Research
Elamipretide just won FDA accelerated approval as Forzinity for Barth syndrome — but research-grade SS-31 is a different, unapproved product. Here's what the completed human trials actually found. For research use only.
Read moreOxytocin Nasal Spray: A Research Buyer's Guide
For oxytocin research, prioritize a verified lot-specific COA, ≥98% HPLC purity, and full excipient disclosure. What the intranasal literature shows and what to check before sourcing. For research use only.
Read moreSelank Dosage & Benefits: What the Research Shows
Published Selank research spans one Russian human anxiety trial and a handful of rodent studies on GABA, enkephalin, and BDNF pathways — but there's no established human dosing protocol. For research use only.
Read moreAHK-Cu vs GHK-Cu: Copper Peptides for Hair Research
AHK-Cu (Copper Tripeptide-3) and GHK-Cu (Copper Tripeptide-1) are structurally distinct copper peptides — GHK-Cu has the broader hair/skin literature, AHK-Cu is studied more narrowly for follicular vascularization, and both remain preclinical. For research use only.
Read moreBest Peptide Companies for Research (Ranked)
The best peptide company is one that proves identity and purity per batch with independent tests and delivers high-quality peptides in formats that fit your needs.
Read moreWhat Is the Dream Catcher Peptide? DSIP Sleep Research
“Dream Catcher” is DSIP, a sleep-related peptide studied for slow-wave sleep and stress/HPA effects since the 1970s. The research is decades deep but mixed, with limited human evidence. For research use only.
Read moreGHK-Cu: Nasal vs Topical vs Sublingual Formats Compared
Format dictates GHK-Cu delivery, target access, and which studies apply. How topical, nasal, sublingual, and injectable formats compare for research design. For research use only.
Read moreSemax vs Selank: Nootropic Peptides Compared (Research)
Semax and Selank share a nasal-spray format and Russian research origin but are structurally unrelated: Semax is studied for cognition and neuroprotection, Selank for anxiety and immune-linked effects. For research use only.
Read moreGHK-Cu Before & After: What the Research Shows
What the published research actually shows for GHK-Cu “before and after” — collagen synthesis, skin density, and hair follicle findings across in vitro, animal, and small human topical studies. For research use only.
Read moreWhat Is a Peptide? The Complete Beginner's Guide
Peptides are short amino acid chains whose sequence determines their role, from hormones and immune signals to skin and collagen support.
Read morePeptide Nasal Spray vs Injection: What the Research Shows
Intranasal and injected peptides are not one protocol in a different bottle. What published pharmacokinetics establish about each route, and what they do not.
Read moreBPC-157 vs. TB-500: Research Comparison
BPC-157 promotes gut/organ repair. TB-500 leans connective tissue and cardiac repair. Neither has strong human data, and both are banned in drug-tested sport.
Read moreWhat Is TB-500? Thymosin Beta-4 Fragment Research
TB-500 shows promising repair effects in animal studies but isn’t an approved drug; human data and long-term safety are still emerging, so use with informed caution.
Read morePeptides Studied for Tissue Repair & Regeneration
How peptides like BPC-157, TB-500, GHK-Cu and growth-hormone secretagogues are being studied as signaling molecules to support the phases of tissue repair — across tendon, cartilage, ligament, muscle and bone — and an honest look at the animal-to-human evidence gap.
Read moreHow to Use a Peptide Nasal Spray: Researcher's Guide
A researcher's guide to peptide nasal sprays: why intranasal delivery bypasses the gut and can reach the CNS, correct step-by-step technique, compound-specific notes for BPC-157, TB-500, GHK-Cu and VIP, plus storage and dosing principles.
Read moreAre Research Peptides Legal? A State-by-State Guide
Peptide legality depends on the compound, its intended use, and its legal category: FDA-approved drugs, compounded preparations, research-use-only chemicals, and cosmetics each sit under different rules. A practical guide to where each one stands in the US.
Read moreHow to Choose a Research Peptide Supplier
A practical checklist for vetting research peptide suppliers: what a legitimate batch-specific COA must include, why third-party HPLC and mass-spec testing matter, net peptide content vs. gross weight, and the red flags that should make you walk away.
Read moreWhat Is GHK-Cu? Copper Tripeptide-1 Research
GHK-Cu improves skin firmness and texture in small human trials; injectables remain experimental and should only be used under medical supervision.
Read moreWhat Is BPC-157? Research, Mechanisms & Science
BPC-157 is a decades-old synthetic peptide derived from a stomach protein, now gaining buzz from anecdotal healing reports and its addition to WADA's banned list.
Read morePal-GHK
PAL-GHK is a skin-friendly peptide combined with palmitic acid to boost stability and absorption, helping support smoother, stronger, and healthier skin.
Read moreDo Peptides Need to Be Refrigerated?
A practical guide to peptide storage temperatures, why refrigeration matters, and how improper storage can compromise your research compounds.
Read moreLyophilized vs. Non-Lyophilized Peptides: A Comparison
Understanding the differences between lyophilized (freeze-dried) and non-lyophilized peptide formats, their stability profiles, and when each form is preferred for research applications.
Read moreHow Long Do Peptides Last After Reconstitution?
A comprehensive guide to peptide stability after reconstitution, including storage best practices, degradation timelines, and how to maximize the useful research life of your peptides.
Read moreWhat Happened to Gorilla Healing?
An examination of what happened to the peptide supplier Gorilla Healing, why they disappeared from the market, and what researchers should look for in a reliable peptide source.
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