The peptide library.
Pre-configured reconstitution calculators and reference data for 50 peptides organised by category. Each page shows the calculator pre-set to a typical vial and dose, common vial sizes, dose ranges, and cited sources.
What this library covers
Peptides are short chains of amino acids that act as signaling molecules in the body. The peptides in this library span eight categories that researchers and clinicians most commonly look up: GLP-1 incretins like tirzepatide, semaglutide, and retatrutide; healing and recovery peptides such as BPC-157 and TB-500; growth hormone secretagogues including CJC-1295, ipamorelin, and tesamorelin; cognitive peptides like Semax, Selank, and Cerebrolysin; mitochondrial and longevity entries including MOTS-c, NAD+, and Epitalon; sexual-health peptides such as PT-141; immune and metabolic peptides like thymosin alpha-1 and KPV; and topical skin peptides including GHK-Cu, Argireline, and Matrixyl.
Every peptide entry is keyed to the same reference fields: a default vial size in milligrams, a recommended bacteriostatic-water volume in milliliters, a default reference dose in milligrams, and the corresponding insulin-syringe class (U-100 or U-40). Those four fields drive a calculator preset that opens to the most commonly observed research-vendor presentation, so the math is workable from the first page load. Common vial sizes and the published dose range for that peptide are shown alongside, with each value cross-checked against the citations on the same page.
The point of organising the library this way is to make it as easy as possible to go from a peptide name to a checked piece of reference math, without the user having to chase down vial-size charts and concentration formulas separately. None of these pages constitute a dose recommendation. The framing is consistent across every entry: educational reference for researchers and laboratory professionals working with research-only peptide reference data.
GLP-1s and incretin-class peptides
Healing and recovery
Growth hormone secretagogues
Frequently asked questions about the library
- What is a peptide?
- A peptide is a short chain of amino acids — typically two to fifty residues — joined by peptide bonds. They sit in between single amino acids and full proteins on the size spectrum. Peptides act as signaling molecules in nearly every system in the body, which is why they have become a focus of research in endocrinology, metabolism, regenerative medicine, and skin biology.
- How is this library organised?
- Peptides are grouped by category — GLP-1s, healing and recovery, growth hormone secretagogues, cognitive and neurological, mitochondrial and longevity, sexual health, immune and metabolic, and skin. Each entry shows a default vial size, BAC water volume, and reference dose so the calculator opens pre-configured for the most common research-vendor presentation.
- Do these pages recommend doses?
- No. Every dose shown is a reference figure drawn from the published literature, manufacturer labeling, or peer-reviewed pharmacology — not a recommendation for any particular person. Choosing a protocol is the responsibility of the prescribing clinician or principal investigator.
- Are all of these peptides legal to use as medicines?
- No. Some entries — for example, tirzepatide and semaglutide — are FDA-approved medicines available by prescription. Many others are research peptides that are not approved for human use. Each peptide page notes its regulatory context where relevant, and the site as a whole is framed as an educational reference, not a sourcing or treatment guide.
- How does the calculator handle reconstitution math?
- Pure functions in `src/lib/calc.ts` compute concentration (mg/mL), draw volume (mL), and syringe units (U-100 or U-40) from the inputs. The math is unit-tested and the URL is the source of truth, so any link you share will reproduce the same calculator state.
- Where do the cited sources come from?
- Each peptide page links to PubMed-indexed primary literature or — where applicable — the FDA prescribing information. Where evidence is purely preclinical, that is stated explicitly on the page. Citations are reviewed when peptide pages are added or updated.
Other reference pages
For the underlying math from any vial size and BAC volume, use the reconstitution calculator. For multi-peptide protocols like KLOW, GLOW, and Wolverine, see the stacks reference. The guides cover BAC water, syringe units, and reconstitution math in plain language.
PeptideDose is an educational reference. It is not medical advice and does not replace consultation with a licensed healthcare provider. Doses shown in presets are derived from published protocols and product labels — they are not personal recommendations.