What's the standard BPC-157 reconstitution dose?

A 5 mg BPC-157 vial reconstituted with 2 mL of bacteriostatic water yields 2.5 mg/mL. A typical 250 µg dose draws 0.1 mL (10 units on a 1 mL U100 syringe).

How do you reconstitute Tirzepatide?

A 10 mg Tirzepatide vial mixed with 2 mL of bacteriostatic water gives 5 mg/mL. The 2.5 mg starting dose draws 0.5 mL (50 units on a 1 mL U100 syringe).

What's the typical PT-141 dose?

A 10 mg PT-141 (Bremelanotide) vial reconstituted with 2 mL of bacteriostatic water yields 5 mg/mL. The 1.75 mg per-use dose draws 0.35 mL (35 units on a 1 mL U100 syringe).

How much BAC water for a 5 mg peptide vial?

Most users add 2 mL of bacteriostatic water to a 5 mg vial, yielding a clean 2.5 mg/mL concentration. This makes drawing common doses (0.25 mg, 0.5 mg) easy on a U100 insulin syringe.

What syringe should I use for peptide injections?

A 1 mL U100 insulin syringe is the most common choice for subcutaneous peptide injections. The U100 marking means 100 units = 1 mL, so 50 units = 0.5 mL. For very small doses, a 0.3 mL or 0.5 mL syringe gives more precise readings.

GLP1Calculator — Free Peptide Reconstitution Calculator (GLP-1, BPC-157, TB-500, PT-141 + 22 more)

⚡ Popular peptides — one tap fills all three steps with the most common starting dose

1Peptide Vial Size

2BAC Water Added

3Your Dose

DRAW

—units

— mL · 1 mL U100 syringe

Syringe

Concentration— mg/mL

Doses per vial— · — wks @ 1/wk

Tip: Most users add 2 mL of BAC water per vial. For a 5 mg vial that gives you 2.5 mg/mL. Use a 1 mL U100 insulin syringe for accuracy.

⚠️ Educational only. Always confirm doses with your prescribing physician.

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Standard reconstitution doses for popular peptides

Reference table of typical published vial / BAC water / starting dose configurations for the most-searched peptides. Tap any row's quick-fill above to load it into the calculator.

Peptide	Vial	BAC water	Concentration	Typical dose	Use
Semaglutide	5 mg	2 mL	2.5 mg/mL	0.25 mg/wk start	GLP-1 weight loss
Tirzepatide	10 mg	2 mL	5 mg/mL	2.5 mg/wk start	Dual GIP/GLP-1
Retatrutide	10 mg	2 mL	5 mg/mL	2 mg/wk start	Triple-agonist
Cagrilintide	10 mg	2 mL	5 mg/mL	0.5 mg/wk start	Amylin analog
TRT · Cypionate	2000 mg	10 mL oil	200 mg/mL	100 mg/wk (split)	Testosterone
TRT · Enanthate	2500 mg	10 mL oil	250 mg/mL	100 mg/wk (split)	Testosterone
BPC-157	5 mg	2 mL	2.5 mg/mL	250 µg/day	Healing peptide
TB-500	10 mg	2 mL	5 mg/mL	2.5 mg/wk	Tissue repair
CJC-1295	5 mg	2 mL	2.5 mg/mL	100 µg/day	GHRH analog
Ipamorelin	5 mg	2 mL	2.5 mg/mL	200 µg/day	GH releaser
GHK-Cu	50 mg	3 mL	16.7 mg/mL	2 mg/day	Copper peptide
GHRP-6	5 mg	2 mL	2.5 mg/mL	100 µg/day	Ghrelin mimic
LL-37	5 mg	2 mL	2.5 mg/mL	500 µg/day	Antimicrobial
IGF-1 LR3	1 mg	1 mL	1 mg/mL	40 µg/day	Growth factor
PT-141	10 mg	2 mL	5 mg/mL	1.75 mg PRN	Bremelanotide / sexual
Melanotan II	10 mg	2 mL	5 mg/mL	0.5 mg loading	Tanning
Tesamorelin	10 mg	2 mL	5 mg/mL	1.4 mg/day	FDA GHRH analog
Sermorelin	15 mg	3 mL	5 mg/mL	300 µg pre-bed	FDA GHRH
Epitalon	50 mg	5 mL	10 mg/mL	5 mg/day cyclical	Longevity
Thymosin α-1	10 mg	5 mL	2 mg/mL	1.6 mg 2x/wk	Immune
AOD-9604	5 mg	2 mL	2.5 mg/mL	300 µg/day	HGH fragment / fat loss
MOTS-c	10 mg	2 mL	5 mg/mL	2 mg 2x/wk	Mitochondrial
Selank	5 mg	2 mL	2.5 mg/mL	400 µg/day	Anxiolytic
KPV	10 mg	5 mL	2 mg/mL	500 µg/day	Anti-inflammatory
DSIP	5 mg	2 mL	2.5 mg/mL	100 µg pre-bed	Sleep
Semax	30 mg	3 mL	10 mg/mL	300 µg/day	Cognitive

All values are typical published configurations from clinical trials and common research-peptide protocols. Personal dose and protocol must be confirmed with a licensed prescriber.