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Order before 3pm Mon–Fri for same-day dispatch99%+ Purity Guaranteed on Every BatchDiscreet Plain Packaging on All OrdersFast UK Next-Day Delivery AvailableBatch-Specific COA (See Product)Research Use Only — Not for Human or Veterinary Use15 Years of Experience Supplying UK ResearchersOrder before 3pm Mon–Fri for same-day dispatch99%+ Purity Guaranteed on Every BatchDiscreet Plain Packaging on All OrdersFast UK Next-Day Delivery AvailableBatch-Specific COA (See Product)Research Use Only — Not for Human or Veterinary Use15 Years of Experience Supplying UK Researchers
Research Use Only

My UK Peptides (Research Only)15 Years of Experience with High Quality Peptides for Research Only

UK's No 1 Peptides Supplier — Established 15 years! Research-use-only products.

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99%+ Purity

High purity guaranteed on all peptides

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Order before 3PM Mon–Fri

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Next day delivery available

Research Use Only

Lab grade quality assured

Reverse Peptide Calculator

Smart reconstitution for a clean syringe draw. Pick the units you want to pull, and this tool calculates how much bacteriostatic water to add.

Research use only: This calculator is for in-vitro laboratory research planning. It is not medical advice and does not establish a dosing recommendation.

Reverse Peptide Calculator

Pick your syringe draw first — we calculate how much BAC water to add

1 unit = 0.01 mL on a standard U-100 insulin syringe.

Use this much BAC water

5.00mL

to draw 25 units for a 0.50 mg dose.

Full syringe

010203030 u

Zoomed to your draw

202530uDraw to 25 u
Total number of doses in vial20

Concentration: 2000 mcg/mL (2.00 mg/mL).

Micrograms ↔ Milligrams

mcg =0.500 mg

Milliliters ↔ Units

mL =25.0 units

This works backwards from a standard calculator. Instead of entering BAC water and getting a draw amount, you choose a clean draw (like 10, 20, or 50 units) and the tool solves for the BAC water needed.

Need the standard forward calculator? Open reconstitution calculators.

How this calculator works

A standard peptide calculator asks how many syringe units to draw after you enter your BAC water volume. This reverse calculator works the other way around: you choose the draw size you want, and it solves for the BAC water that produces it.

Formula: BAC water (mL) = (vial mg × draw units × 0.01) ÷ dose mg. Example: a 10 mg vial, 500 mcg (0.5 mg) dose, and a 25-unit draw (0.25 mL) needs 5 mL bacteriostatic water.

Looking for storage guidance and the forward calculator? Visit our Reconstituting & Storing Peptides page.

Research Use Only

For laboratory research use only. Not for human or veterinary use.

Not for Human Use

Products are not intended for human or veterinary consumption.

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Rigorous quality control on every batch from our state-of-the-art laboratory.

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