Most reproducibility problems are handling problems, not purity problems. This is the protocol Vitality Labs recommends to Australian research customers.
Research use only. Everything published in the Vitality Labs Research Journal is in-vitro and laboratory reference material for qualified Australian research buyers. It is not medical, therapeutic, dosing or performance guidance for human or veterinary use.
A 99% pure peptide handled badly performs worse than a 95% peptide handled well. Australian ambient conditions — long transit distances and hot summers — make disciplined handling more important here than in most markets.
Step-by-step reconstitution
- Allow the sealed vial to reach room temperature before opening to prevent condensation on cold powder
- Select the solvent your protocol specifies — bacteriostatic water for multi-draw work, sterile water for single-use
- Introduce solvent slowly down the inner wall of the vial rather than directly onto the cake
- Swirl gently until dissolved; never shake, which shears longer chains and encourages aggregation
- Aliquot into single-use volumes immediately, label with lot code and date, and freeze what is not in immediate use
Storage reference
| State | Condition | Practical working window |
|---|---|---|
| Lyophilised, sealed | 2–8 °C, dark | Long-term per certificate |
| Lyophilised, sealed | Room temperature | Short transit windows only |
| Reconstituted | 2–8 °C | Days, protocol dependent |
| Reconstituted, aliquoted | −20 °C or below | Weeks; avoid repeat freeze-thaw |
Record keeping that protects your data
- Log the Vitality Labs lot code against every experiment, not just every order
- Note the reconstitution date, solvent and final concentration on each aliquot
- Cap freeze-thaw cycles at two and discard beyond that
- Keep the published certificate on file with your batch record
Frequently asked
Bacteriostatic or sterile water?
Bacteriostatic water contains benzyl alcohol as a preservative and suits multi-draw vials. Sterile water suits single-use protocols where a preservative would be a confounder.
Does Vitality Labs stock bacteriostatic water?
Yes — it is one of our fastest-moving lab supply lines and ships Australia-wide alongside peptide orders.
