One vial, two peptides, one honest draw.
For prescribed, clinician-supervised protocols. When two or more peptides share a single vial you can't dose them apart — one draw delivers a fixed amount of each. Enter your water, each component and your target; the calculator shows the draw and exactly how many mcg of each lands in it. For tracking & education only; it never recommends a dose.
- Every peptide shares this one vial and water, so a single draw delivers a fixed amount of each. You cannot dose them independently from this vial — changing the draw changes them all together.
Lumara is a tracking tool and does not provide medical advice, diagnosis, or treatment. This calculator computes the math from the numbers you enter; it never recommends a dose or a blend. Always follow your provider's guidance.
How to calculate a blended peptide vial
In a blend, several peptides share the same water, so a single draw pulls all of them at once in a fixed ratio. Each component's concentration is its amount divided by the shared water volume.
- Enter the shared BAC water you added to the vial — all components dissolve in the same volume.
- Add each peptide and its amount (mg or mcg) in the vial.
- Set your target draw by one component’s dose, or by a number of units.
- Read the single draw and the mcg of every component it delivers, then log it.
Worked example: 5 mg of peptide A + 5 mg of peptide B in 2 mL
Two peptides, 5 mg each, sharing one vial reconstituted with 2 mL of BAC water, targeting 250 mcg of peptide A:
- Concentration (each) — 5 mg ÷ 2 mL = 2.5 mg/mL per component.
- Draw for 250 mcg of peptide A — 0.25 mg ÷ 2.5 mg/mL = 0.1 mL = 10 units.
- That same draw also delivers — 250 mcg of peptide B (equal amounts, equal ratio).
- Doses per vial — 5 mg ÷ 0.25 mg = 20 draws.
Because the components share one draw, you can only set the ratio when you mix the vial — not per injection. Enter your own blend above.
Sources
- U.S. Food and Drug Administration. FDA alerts health care providers, compounders and patients of dosing errors associated with compounded injectable semaglutide products. FDA; content current as of July 26, 2024.
- Eli Lilly and Company. HUMULIN R (insulin human) injection, for subcutaneous or intravenous use. Prescribing information and carton labeling. DailyMed, U.S. National Library of Medicine; set ID b519bd83-038c-4ec5-a231-a51ec5cc291f; revised 6/2023.
- National Institute of Standards and Technology, Office of Weights and Measures. Metric (SI) Prefixes. NIST.
Frequently asked questions
Peptides are sometimes reconstituted together in a shared vial. The consequence is that a single syringe draw pulls all of them in a fixed ratio set when you mixed the vial — you cannot dose them independently afterward. The calculator shows exactly how much of each a given draw delivers.
Each peptide dissolves in the same shared water, so each has its own concentration (its amount ÷ the water volume). A draw of a given volume therefore contains a proportional amount of every component at once. The tool computes the mcg of each.
No — once blended, the ratio is fixed by how much of each you put in the shared vial. Changing the ratio means mixing a different vial. This is why the calculator surfaces the per-component amounts so clearly.
No. It is an educational estimation tool that does the arithmetic and shows its work; it never recommends a blend, a ratio, or a dose. Always follow your licensed provider’s instructions.