Research Calculators
Free reconstitution, dosing, and protocol tools for lab planning. For research use only.
Peptide dose calculator.
Pick a compound, pick a dose, see exactly what to draw. We handle the math — concentration, draw volume, syringe IU mark — and flag whether your concentration is in the typical research range. Building a multi-peptide stack? Try the Pro Protocol Calculator →
For research use only. Concentration assessment is compound-specific. Switch vial style above to test branded vs. unbranded.
Peptide life calculator.
Pick a compound, state, and how you’re storing it — we return a general shelf-life estimate based on published peptide stability conventions. Add a date to get remaining days. Also: Dose · Protocol
These numbers are aggregated rule-of-thumb ranges from peptide stability literature. Actual potency varies by batch, exposure history, and manufacturer. For exact stability, refer to your product’s Certificate of Analysis (COA).
- Do NOT freeze. Bac water expands when frozen and will crack the glass vial.
- Room temperature and fridge storage are essentially equivalent for an unopened bac water vial — both keep it stable for the manufacturer-stated shelf life.
- After first puncture, fridge storage is recommended. It doesn’t significantly extend shelf life, but it can slow or prevent unexpected bacterial growth from any contamination introduced during use.
- Per USP <797>: discard a multi-dose bac water vial 28 days after first puncture, regardless of storage method.
General estimate
The day-counts in this calculator are general estimates aggregated from public peptide stability literature and manufacturer COA conventions — not vial-specific or batch-specific.
- Lyophilized at −20°C: 1–3 years — manufacturer COA conventions (Bachem peptide handbook standards)
- Lyophilized at 2–8°C: 1–1.5 years — typical compromise from research peptide stability literature
- Lyophilized at room temp: 4–12 weeks — conservative degradation estimates
- Reconstituted at 2–8°C: 4–8 weeks — most commonly cited research-literature range for peptide potency in solution
- Reconstituted frozen: ~3 months — with single freeze tolerance; avoid repeated freeze–thaw cycles
- Bacteriostatic water: see notes above — USP <797> standard is the authoritative source for the 28-day post-puncture rule
- Compound-specific tweaks: GHK-Cu light sensitivity, CJC+Ipa co-formulation faster degradation, Retatrutide GLP-1 “do not shake” handling — from research peptide community knowledge
Research use only · Not medical advice
Build your protocol stack.
Pick peptides from the catalog. Set the per-injection dose, frequency, and cycle length for each. We’ll calculate vials, bac water, schedule, and cost. Single-compound math? Dose Calculator →