Peptide Stability & Storage Guide
| Stability | Description | Icon |
|---|---|---|
| Stable | Slow degradation in solution under proper refrigeration. Most chemically resilient category. | |
| Moderate | Average stability. Not extremely fragile, but potency loss becomes relevant sooner. | |
| Fragile | Low stability in solution. Degrades quickly and must be handled within a short time window. |
*** Stability Legend ***
Reconstituted Peptide Stability Using Safe Values
The values are conservative operational guidelines, not direct laboratory measurements. They provide clear, fixed days for when potency loss is assumed to begin and when a vial should be discarded. These values are based on the stability class (fragile, moderate, stable), chemical vulnerability, and a built-in safety margin, so that users do not need to estimate or push storage limits on their own.
!!! Important !!! These storage durations are based on peptides reconstituted
with a new, freshly opened vial of bacteriostatic water
Safe values - Stored refrigerated (2–8 °C) and protect from light.
| Peptide | Safe Icon | Stability | Evidence | Day 7 | Day 14 | Day 21 | Day 30 | Safe Window |
|---|---|---|---|---|---|---|---|---|
| Adipotide | Moderate | Structural Prediction | ~95% | ~90% | ~85% | ~79% | 21 days | |
| Afamelanotide | Stable | Structural Prediction | ~97% | ~94% | ~91% | ~88% | 30 days | |
| AOD-9604 | Stable | Structural Prediction | ~97% | ~94% | ~91% | ~88% | 30 days | |
| ARA-290 | Moderate | Structural Prediction | ~95% | ~90% | ~85% | ~78% | 21 days | |
| BPC-157 | Moderate | Community LC-MS | ~94% | ~88% | ~82% | ~75% | 21 days | |
| Cagrilintide | Stable | Class Analogy | ~98% | ~96% | ~94% | ~92% | 30 days | |
| CJC-1295 (DAC) | Stable | Community LC-MS | ~97% | ~94% | ~91% | ~88% | 30 days | |
| CJC-1295 (No DAC) | Moderate | Community LC-MS | ~95% | ~90% | ~85% | ~80% | 25 days | |
| Dermorphin | Fragile | High Risk | ~85% | ~75% | ~65% | ~55% | 14 days | |
| DSIP | Fragile | Limited Study | ~88% | ~80% | ~72% | ~65% | 14 days | |
| Epitalon | Stable | Limited Study | ~98% | ~96% | ~94% | ~92% | 30 days | |
| Follistatin-344 | Fragile | High Risk | ~82% | ~70% | ~60% | ~50% | 10 days | |
| FOXO4 | Moderate | Structural Prediction | ~93% | ~87% | ~82% | ~77% | 21 days | |
| GDF-11 | Fragile | High Risk | ~80% | ~68% | ~58% | ~48% | 7 days | |
| GHK-Cu | Stable | Limited Study | ~99% | ~98% | ~97% | ~96% | 30 days | |
| GHRP-2 | Moderate | Community LC-MS | ~94% | ~89% | ~84% | ~79% | 25 days | |
| GHRP-6 | Moderate | Community LC-MS | ~93% | ~87% | ~82% | ~77% | 25 days | |
| Glutathione | Fragile | Limited Study | ~75% | ~60% | ~48% | ~38% | 7 days | |
| Gonadorelin | Moderate | Structural Prediction | ~92% | ~85% | ~79% | ~73% | 21 days | |
| HCG | Fragile | Community LC-MS | ~85% | ~75% | ~65% | ~55% | 14 days | |
| Hexarelin | Moderate | Community LC-MS | ~94% | ~89% | ~84% | ~79% | 25 days | |
| HGH 191AA | Fragile | Community LC-MS | ~82% | ~70% | ~60% | ~50% | 14 days | |
| HGH Fragment 176-191 | Moderate | Community LC-MS | ~93% | ~87% | ~82% | ~77% | 25 days | |
| HMG | Fragile | High Risk | ~80% | ~68% | ~58% | ~48% | 10 days | |
| IGF-1 LR3 | Fragile | Community LC-MS | ~83% | ~72% | ~63% | ~55% | 14 days | |
| Ipamorelin | Moderate | Community LC-MS | ~95% | ~91% | ~87% | ~83% | 28 days | |
| Kisspeptin-10 | Moderate | Structural Prediction | ~92% | ~86% | ~81% | ~76% | 21 days | |
| KPV | Stable | Structural Prediction | ~97% | ~95% | ~93% | ~91% | 30 days | |
| L-carnitine | Stable | Limited Study | ~99% | ~98% | ~97% | ~96% | 30 days | |
| Lipo-c | Stable | Structural Prediction | ~98% | ~96% | ~94% | ~92% | 30 days | |
| LL-37 | Fragile | High Risk | ~84% | ~73% | ~64% | ~56% | 14 days | |
| Mazdutide | Stable | Class Analogy | ~98% | ~96% | ~94% | ~92% | 30 days | |
| Melanotan I | Moderate | Community LC-MS | ~91% | ~84% | ~78% | ~72% | 21 days | |
| Melanotan II | Moderate | Community LC-MS | ~90% | ~83% | ~77% | ~71% | 21 days | |
| MGF | Fragile | High Risk | ~82% | ~70% | ~60% | ~52% | 14 days | |
| MOTS-C | Stable | Structural Prediction | ~97% | ~95% | ~93% | ~91% | 30 days | |
| NAD+ | Fragile | Limited Study | ~78% | ~65% | ~55% | ~46% | 7 days | |
| Oxytocin Acetate | Moderate | Community LC-MS | ~93% | ~87% | ~82% | ~77% | 25 days | |
| P21 | Moderate | Structural Prediction | ~92% | ~86% | ~81% | ~76% | 21 days | |
| PEG-MGF | Stable | Structural Prediction | ~97% | ~95% | ~93% | ~91% | 30 days | |
| PT-141 | Moderate | Community LC-MS | ~94% | ~89% | ~85% | ~81% | 25 days | |
| Retatrutide | Stable | Class Analogy | ~98% | ~96% | ~94% | ~92% | 30 days | |
| Selank | Moderate | Community LC-MS | ~93% | ~87% | ~82% | ~77% | 25 days | |
| Semaglutide | Stable | Community LC-MS | ~98% | ~96% | ~94% | ~92% | 30 days | |
| Semax | Moderate | Community LC-MS | ~92% | ~86% | ~81% | ~76% | 25 days | |
| Sermorelin | Moderate | Community LC-MS | ~93% | ~87% | ~82% | ~77% | 25 days | |
| Snap-8 | Stable | Structural Prediction | ~97% | ~95% | ~93% | ~91% | 30 days | |
| SS-31 | Stable | Structural Prediction | ~98% | ~96% | ~94% | ~92% | 30 days | |
| Survodutide | Stable | Class Analogy | ~98% | ~96% | ~94% | ~92% | 30 days | |
| TB-500 | Moderate | Community LC-MS | ~94% | ~89% | ~85% | ~81% | 25 days | |
| Tesamorelin | Moderate | Community LC-MS | ~95% | ~91% | ~87% | ~83% | 28 days | |
| Tirzepatide | Stable | Community LC-MS | ~98% | ~96% | ~94% | ~92% | 30 days | |
| Thymalin | Stable | Limited Study | ~97% | ~95% | ~93% | ~91% | 30 days | |
| Thymosin alpha-1 | Stable | Community LC-MS | ~97% | ~95% | ~93% | ~91% | 30 days | |
| Vilon | Stable | Structural Prediction | ~98% | ~96% | ~94% | ~92% | 30 days | |
| VIP | Fragile | High Risk | ~84% | ~73% | ~64% | ~56% | 14 days |
Lyophilized Peptide Storage Stability
Lyophilized (freeze-dried) peptides are generally much more stable than reconstituted solutions. The values below represent typical conservative manufacturer-style guidance for unopened, dry vials stored in darkness and low humidity. They assume intact sterile seals and no repeated warm–cold cycling. They do not override any specific stability statement provided by a reputable manufacturer or testing laboratory.
Lyophilized sorted by storage type and protected from light.
| Shelf Room Temp | Fridge 2–8 °C | Freezer ≤ -20 °C |
|---|---|---|
| 6 months | 12 months | 2 years |
This information is provided for research and educational purposes only. It does not constitute medical advice, diagnosis, or treatment guidance. Always consult a qualified healthcare professional before making medical or health decisions.