Cheat Sheet · Storage
Peptide storage guide
Peptides are fragile molecules that mostly die of heat, light and time. Where a vial lives — and for how long — decides whether the compound in it is still the compound on the label.
Unreconstituted (Dry Powder)
Short termFridge 2–8°C
Long termFreezer -20°C
Light exposureKeep away from light
Shelf life (fridge)6–12 months
Shelf life (freezer)1–2+ years
Freeze-thaw cyclesMinimize — max 3–5x
Reconstituted (Mixed)
TemperatureFridge only — 2–8°C
FreezingNEVER freeze reconstituted
Shelf life4–6 weeks
LightKeep away — wrap in foil if needed
Room temp maxUnder 4 hours total
After 6 weeksDiscard even if it looks fine
BAC Water
After openingFridge
Shelf life (sealed)2+ years
Shelf life (opened)Up to 28 days
ReuseYes — swab the top every time
Pre-loaded Syringes
StorageFridge, capped, upright
Max time24 hours
Before useRoom temp 10–15 min
Signs It Has Gone Bad
CloudinessHeavy floaters — discard
ColorYellow or brown — discard
SmellAny unusual odor — discard
No effectCorrect dose, no response — suspect degradation
RuleWhen in doubt, throw it out
Per-Compound Notes
Sema / TirzVery stable. 4–6 weeks reconstituted.
BPC-157Stable. 4 weeks reconstituted.
TB-500May appear milky — normal.
Semax / SelankMore fragile. 3–4 weeks reconstituted.
IGF-1 LR3Sensitive. 3 weeks reconstituted max.
EpithalonVery stable. Freeze dry between annual cycles.
Reconstituted lifetimes above are the general rule — the per-compound notes override it where a molecule is known to be tougher or more fragile than average.