What to confirm across a peptide formulary
Do not accept a single blended peptide rate. Ask South Lake Compounding for per-vial cost on each peptide you actually order — because costs differ meaningfully by molecule and compounding complexity. South Lake Pharmacy's USP 795/797/800-compliant cleanroom and two-lab third-party testing program (potency, sterility, endotoxin on every preparation) apply to peptide compounds as they do to any other preparation — which means the testing overhead is a real component of each peptide's cost. Confirm strength and vial size for each peptide you order, ask whether low-volume peptides carry minimums or different per-unit pricing, and confirm whether adding a peptide to your formulary later requires a new clinic agreement amendment. For protocols that stack multiple peptides per patient, confirm the combined cost so you can price the stack, not just the components.
The practical risk with clinic-agreement-only peptide pricing is staleness. As you add or rotate peptides, an agreement captured at enrollment may not cover your current formulary, leaving newer SKUs priced by assumption. Keep your written per-vial costs current for every peptide your margin depends on.