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The 28-day window is based on: Peptide stability in bacteriostatic water solution The preservative activity of the benzyl alcohol in bacteriostatic water (which inhibits bacterial growth) General best practice for reconstituted research peptides Protocols using reconstituted peptide beyond 28 days should plan vial reconstitution timing to align with use schedules

Here's what we recommend: Before Reconstitution (Lyophilized Powder): Long-Term Storage: For periods longer than a few weeks, store the lyophilized vial in a freezer (-20C or -4F is ideal)

These can include whether you have an underlying health condition

This treatment is more reliable than supplements