Understand the source comparison
BAC Water Before and After Real Results: [Comparison]
Shelf Life Post-Reconstitution 28 days refrigerated (2–8°C) 72 hours maximum 24 hours (single-dose use) BAC water supports multi-week protocols; sterile water forces immediate use or daily reconstitution Antimicrobial Protection Yes. Bacteriostatic via benzyl
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Shelf Life Post-Reconstitution
- 28 days refrigerated (2–8°C)
- 72 hours maximum
- 24 hours (single-dose use)
- BAC water supports multi-week protocols; sterile water forces immediate use or daily reconstitution
- Antimicrobial Protection
- Yes. Bacteriostatic via benzyl alcohol membrane disruption
- None. Supports bacterial growth once seal is breached
- None. Isotonic but not preserved
- Only BAC water prevents bacterial colonisation in multi-dose vials
- pH Stability
- 4.5–7.0 (varies by manufacturer)
- 5.0–7.0 (neutral)
- 4.5–7.0 (buffered)
- All three require separate pH verification for pH-sensitive peptides like BPC-157
- Compatibility with Sensitive Peptides
- Not suitable for Cartalax Peptide or benzyl alcohol-reactive compounds
- Preferred for single-dose, benzyl-sensitive research
- Preferred for electrolyte-dependent peptide stability
- Benzyl alcohol can denature certain peptide structures. Verify compatibility before use
- Cost per mL (Research-Grade)
- $0.15–0.25/mL
- $0.08–0.12/mL
- $0.10–0.18/mL
- BAC water costs 2–3× more but reduces waste in multi-dose protocols
- Regulatory Classification
- USP <797> multi-dose preservative standard
- USP single-dose sterile diluent
- USP isotonic diluent
- BAC water is the only solvent FDA recognises for extended multi-dose use