Peptide guides
Reviewed by the Rite Aid Health Team · Last updated July 2, 2026
How to handle peptides correctly — mixing, measuring, injecting, storing, and checking quality. Each guide is written plainly and reviewed by our pharmacy team.
Almost done
Confirm your email to secure 20% off your first compounded-peptide order. We'll notify you when consultations and ordering open.
Get 20% off your first compounded-peptide order
Join the early-access waitlist and we'll notify you the moment consultations and ordering open.
Getting started
- How to reconstitute peptides — adding bacteriostatic water, the common mistakes, and the dosing math.
- Bacteriostatic water: how much to use — what it is, how much to add, and how the amount changes your dose.
- First time using peptides — supplies, choosing a first peptide, and your first injection.
Measuring and injecting
- Insulin syringe units explained — U-100 vs U-50 vs U-30, reading the ticks, and converting units to mg or mcg.
- Injection sites and rotation — the subcutaneous sites, the rotation rule, and avoiding lumps.
Storing and verifying
- Storage and shelf life — fridge vs freezer, lyophilized vs reconstituted, and what ruins a vial.
- Peptide half-lives and dosing cadence — what half-life means for how often you dose.
- Reading a Certificate of Analysis — HPLC purity, mass-spec identity, and the red flags of a fake report.
Almost done
Confirm your email to secure 20% off your first compounded-peptide order. We'll notify you when consultations and ordering open.
Get 20% off your first compounded-peptide order
Join the early-access waitlist and we'll notify you the moment consultations and ordering open.
Tools
- Peptide reconstitution calculator — turn vial size, water, and target dose into the exact units to draw.
For general education only — not medical advice or a treatment recommendation. Peptides are not a substitute for care from a licensed provider. Talk to a qualified healthcare professional before you start, stop, or change any peptide, medication, or supplement.