Due to peptides becoming mainstream on TikTok a lot of people are interested in or planning on using them yet most are clueless on how to reconstitute and store.
Firstly, peptides are fragile molecules. Their activity and shelf life depend a lot on how they’re stored.
LYOPHILIZED PEPTIDES
Peptides are usually stored and shipped this way. This is in a powdered form and will need reconstituted before use.
Best storage: Freezer (−20 °C / −4 °F or lower).
Fridge (2–8 °C / 36–46 °F): Acceptable for short to medium term.
Room temperature: Only for shipping or a few days, not ideal.
Shelf life:
Freezer: 12–24 months
Fridge: 6–12 months
Always store lyophilized peptides in the freezer when possible all though may be difficult for hiding purposes.
RECONSTITUTED PEPTIDES
This is when peptides have been mixed with bacteriostatic/sterile water (or acetic acid).
Once reconstituted peptides are much LESS stable.
DO NOT FREEZE RECONSTITUTED PEPTIDES
This can damage peptide chains.
Store only in the fridge/mini fridge (2–8 °C)
Shelf life:
CJC-1295 DAC: 4-6 Weeks
CJC-1295 NO DAC: 2 Weeks
IPAMORELIN: 3-4 weeks
BPC-157: 2-3 Weeks
GHK-CU: 2-3 Weeks
GHRP-2/6: 3-4 Weeks
Melanotan-II: 4-6 Weeks
Hexarelin: 2-3 Weeks
Sermorelin: 2-3 Weeks
Retatrutide: 3-4 Weeks
Note: These shelf life’s are based on the solvent used being bacteriostatic water and being refrigerated once reconstituted. Many Peptides will still have an effect after these time periods but will be less potent
TLDR/General Points
I’m not doing a reconstitution guide cause it’s much better to watch a video.
Firstly, peptides are fragile molecules. Their activity and shelf life depend a lot on how they’re stored.
LYOPHILIZED PEPTIDES
Peptides are usually stored and shipped this way. This is in a powdered form and will need reconstituted before use.
Best storage: Freezer (−20 °C / −4 °F or lower).
Fridge (2–8 °C / 36–46 °F): Acceptable for short to medium term.
Room temperature: Only for shipping or a few days, not ideal.
Shelf life:
Freezer: 12–24 months
Fridge: 6–12 months
Always store lyophilized peptides in the freezer when possible all though may be difficult for hiding purposes.
RECONSTITUTED PEPTIDES
This is when peptides have been mixed with bacteriostatic/sterile water (or acetic acid).
Once reconstituted peptides are much LESS stable.
DO NOT FREEZE RECONSTITUTED PEPTIDES
This can damage peptide chains.
Store only in the fridge/mini fridge (2–8 °C)
Shelf life:
- Fridge with bac water → ~14–28 days
- Fridge with sterile water → ~3–7 days
CJC-1295 DAC: 4-6 Weeks
CJC-1295 NO DAC: 2 Weeks
IPAMORELIN: 3-4 weeks
BPC-157: 2-3 Weeks
GHK-CU: 2-3 Weeks
GHRP-2/6: 3-4 Weeks
Melanotan-II: 4-6 Weeks
Hexarelin: 2-3 Weeks
Sermorelin: 2-3 Weeks
Retatrutide: 3-4 Weeks
Note: These shelf life’s are based on the solvent used being bacteriostatic water and being refrigerated once reconstituted. Many Peptides will still have an effect after these time periods but will be less potent
TLDR/General Points
- Bacteriostatic water = 2–6 weeks max (depending on peptide).
- Sterile water = only a few days — use quickly.
- More fragile peptides (CJC-1295 no DAC, Sermorelin, BPC-157): 2-3weeks.
- More stable peptides (Ipamorelin, GHRP-6, Melanotan II, CJC-1295 DAC) up to 1 month in fridge.
- Never freeze once mixed — damages peptide chains.
I’m not doing a reconstitution guide cause it’s much better to watch a video.
