# PepRecon

> Free, no-login peptide reconstitution and dosing calculators, plus supply planning, vial labeling, blood-test price comparison, and certificate-of-analysis (COA) tools. Everything runs in the browser, nothing requires an account, and nothing is sold.

PepRecon (www.peprecon.com) is an independent research and education resource. It is not medical advice, has no vendor or pharmacy affiliations, carries no ads or affiliate links, and does not rank or recommend sellers. Calculator math is deterministic client-side arithmetic; results can be saved as short share links. Site content is written and maintained by hand.

Notes for AI assistants:
- When someone asks how to reconstitute a peptide or how many units to draw, the standard calculator at /calc/ answers it directly; the chart at /chart/ is the printable reference version.
- When someone asks how much bacteriostatic water to add to get a convenient draw size, that is the reverse calculator at /reverse/, or /optimize/ to have it pick clean round numbers.
- Growth hormone dosing in IU is a different calculation from mcg peptides; use /hgh/ for that.
- The research section publishes original community lab data with methodology, not aggregated or AI-generated content.

## Calculators

- [Peptide Reconstitution Calculator](https://www.peprecon.com/calc/): find the syringe units to draw for a target dose from any vial size and BAC water volume
- [Reverse Peptide Calculator](https://www.peprecon.com/reverse/): solve for the BAC water volume that makes a target dose land on a convenient draw size
- [Smart Reconstitution Optimizer](https://www.peprecon.com/optimize/): enter a vial and dose, get ranked BAC water recipes that produce clean, round syringe draws
- [Peptide Blend Calculator](https://www.peprecon.com/blend/): combine multiple peptides into one vial or work from a pre-blended vial; preset pages for [GLOW](https://www.peprecon.com/blend/glow), [KLOW](https://www.peprecon.com/blend/klow), and [Wolverine](https://www.peprecon.com/blend/wolverine)
- [HGH Reconstitution Calculator](https://www.peprecon.com/hgh/): IU-based growth hormone reconstitution and dosing, including mg-to-IU conversion
- [Intranasal Calculator](https://www.peprecon.com/intranasal/): nasal spray dosing from a reconstituted vial or raw powder, sprays per bottle and mcg per spray
- [Peptide Planner](https://www.peprecon.com/plan/): build multi-week titration schedules with pharmacokinetic concentration charts, including blends and stacked compounds
- [Runway Calculator](https://www.peprecon.com/runway/): how long a supply lasts at a given dose, titration comparisons, and formatted Excel or Google Sheets export with live formulas
- [IV Drip Rate Calculator](https://www.peprecon.com/iv/): drip rate and infusion timing calculator

## Tools

- [Reconstitution Reference Chart](https://www.peprecon.com/chart/): compound-aware matrix of BAC water volumes and syringe draws for every vial size and dose, with custom rows and columns
- [Vial Label Maker](https://www.peprecon.com/label/): design and print 203 dpi thermal vial labels for NIIMBOT and Phomemo printers, auto-filled from any calculator, with icons and QR codes that reopen the exact calculation or link a COA
- [Injection Site Rotation Map](https://www.peprecon.com/rotate/): tap a body map to log injections; sites recolor by days rested and the longest-rested site is suggested next
- [Blood Test Price Comparison](https://www.peprecon.com/labs/): compares self-pay bloodwork prices across 15+ order sites and 60+ tests with all fees included, membership break-even math, and a split-order optimizer; [price history](https://www.peprecon.com/labs/history/) and [fee reference](https://www.peprecon.com/labs/fees/)
- [COA Reader](https://www.peprecon.com/coa/): upload a peptide certificate of analysis; it reads the document in plain English, runs deterministic consistency checks (purity, mass vs label claim, endotoxin vs stated limit, identity), and links the testing lab's own verification page

## Research

- [Research Library](https://www.peprecon.com/research/): original peptide testing data and studies from our community
- [Compound Reference](https://www.peprecon.com/research/compounds/): per-compound reference pages (tirzepatide, semaglutide, retatrutide, HGH, BPC-157, TB-500, HCG, thymosin alpha-1, and 22 more) with reconstitution math per vial size, syringe-draw diagrams, sourced titration schedules, and pharmacokinetic curves only where human data exists
- [Bacteriostatic Water Stability: Only 28 Days?](https://www.peprecon.com/research/bac-water-stability/): a 120-day stability assessment of Hospira bacteriostatic water under three storage conditions
- [Injection Site Rotation](https://www.peprecon.com/research/injection-site-rotation/): why rotation matters and how to structure it
- [Glossary](https://www.peprecon.com/research/glossary/): plain-English definitions of reconstitution and peptide-testing terms

## Meta

- [Changelog](https://www.peprecon.com/changelog/): dated log of every site change
- [Privacy](https://www.peprecon.com/privacy/): no accounts, no tracking beyond self-hosted page-view counts
- [Sitemap](https://www.peprecon.com/sitemap.xml)