gHRP-6 calculator

5 mg in 2 mL = 2.5 mg/mL; 10 units on a U-100 syringe holds 0.25 mg.

Sizes on sale: 5mg, 10mg. Choose a vial, the water and the amount per draw; prices are the lowest current US offers.

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amount in the vial

bacteriostatic water added

amount per draw

syringe · picked to fit the draw

price, vial size and certificate correction

vial price (optional)

USD

Lowest current US offer for this size.

vial holds (optional)

Most 2–15 mg vials hold 3 mL.

measured content on the COA

From the lot certificate; it replaces the label amount.

or HPLC purity

2.5 mg/mL

10 units holds 0.25 mg

concentration: 2.5 mg/mL
per unit: 25 mcg per unit
full draws per vial: —
cost per draw: —

the working

5 mg ÷ 2 mL = 2.5 mg/mL

If this is a prescription, the dose and volume on your pharmacy label take priority. Ask your pharmacist about any mismatch.

cheapest way to buy it

vendor	size	price	$/mg	checked	calculate with this vial, or view it
Amino USA	5mg	$15.00	$3.00	2026-11-06	view, GHRP-6 5mg at Amino USA, opens in a new tab
Cenexa Labs	10mg	$34.99	$3.50	2026-11-06	view, GHRP-6 10mg at Cenexa Labs, opens in a new tab
Cenexa Labs	5mg	$24.99	$5.00	2026-11-06	view, GHRP-6 5mg at Cenexa Labs, opens in a new tab

In-stock US offers checked in the last 7 days, before shipping. The featured partner is a paid placement and is labelled; order here is by price per mg.

updated Nov 4, 2026 · exact arithmetic, checked against 21 worked cases · prices from offers checked in the last 7 days

human trials · cited sources

doses of GHRP-6 used in research

Never approved; human data are short physiology studies, chiefly single 1 mcg/kg intravenous boluses in healthy adults and children, plus a 34-hour continuous infusion at 1 mcg/kg/h in healthy men. These are the amounts specific labels and studies used, linked to each source. They are references, not recommendations; a prescription label takes priority.

Doses of GHRP-6 used in labels and published studies
source	who	amount and schedule	route
Dose-ranging in normal men (JCEM 1990): 0.1-1.0 mcg/kg IV phase 1 trial · 1990 · 2108187	18 normal men	1 mcg/kg single dose IV bolus doses of 0.1, 0.3 and 1.0 mcg/kg gave mean peak GH of 7.6, 16.5 and 68.7 mcg/L versus 1.2 mcg/L on placebo. Prolactin and cortisol rose about 2-fold only at 1 mcg/kg; no adverse clinical effects were observed.	intravenous
Sex/age physiology study: 1 mcg/kg IV human pilot study · 1993 · 8435889	25 normal adults (16 male, 9 female) and 12 normal prepubertal children	1 mcg/kg single dose A single 1 mcg/kg IV bolus produced GH responses that did not differ between children, adult men and adult women at different menstrual-cycle stages.	intravenous
Prolonged infusion: 1 mcg/kg bolus then 1 mcg/kg/h for 34 h human pilot study · 1993 · 7903313	9 healthy young men	1 mcg/kg loading bolus, then 1 mcg/kg per hour by continuous infusion 34 hours Integrated GH concentration roughly doubled and IGF-I rose from 252 to 312 mcg/L with no change in GH pulse frequency; the pituitary remained responsive to GHRP during the infusion.	intravenous

Sources checked Nov 4, 2026.

GHRP-6 5mg in 2 mL

amount to syringe units

GHRP-6 5 mg in 2 mL: amount to syringe units
amount	mL	U-100 units	U-40 units
100 mcg	0.04	4	1.6
250 mcg	0.1	10	4
500 mcg	0.2	20	8
1 mg	0.4	40	16
2 mg	0.8	80	32
2.5 mg	1	100	40
5 mg	2	200	80

One unit on a U-100 syringe is 0.01 mL; on a U-40 it is 0.025 mL.

every GHRP-6 vial size on sale

reconstitution chart

Concentration and amount per 10 units for GHRP-6 vial sizes and water volumes
vial	1 mL water	2 mL water	3 mL water	5 mL water
5 mg	5 mg/mL 10 units = 0.5 mg	2.5 mg/mL 10 units = 0.25 mg	1.667 mg/mL 10 units = 0.167 mg	1 mg/mL 10 units = 0.1 mg
10 mg	10 mg/mL 10 units = 1 mg	5 mg/mL 10 units = 0.5 mg	3.333 mg/mL 10 units = 0.333 mg	2 mg/mL 10 units = 0.2 mg

10 units on a U-100 syringe is 0.1 mL. Every cell is exact arithmetic: amount ÷ water.

what the numbers mean · where they come from

terms and sources

Label amount or measured amount. The calculator starts from the amount printed on the vial. A lot certificate’s measured content (net peptide content, in mg) can replace it for the vial that was tested. HPLC purity is a share of peak area, not a mass, so a purity-only correction is shown as an estimate. See HPLC, certificate of analysis and how to read a peptide COA.
Concentration. Amount in the vial ÷ water added. Terms: reconstitution, bacteriostatic water, lyophilized.
Syringe units. A volume: 0.01 mL per unit on a U-100 syringe, 0.025 mL on U-40. Units say nothing about the compound until the concentration is known.
Cost per draw. Vial price × amount per draw ÷ vial amount, from the price per mg of a current offer. Offers come from the GHRP-6 price comparison; certificates from the COA library.

Arithmetic only, on the numbers entered. Amounts from labels or trials are cited references, not recommendations; PeptideTech does not give personal use instructions and does not test products.

short answers

GHRP-6 calculator questions

How much bacteriostatic water do I add to GHRP-6 5mg?

Any volume the vial holds; 2 mL gives 2.5 mg/mL, so 10 units on a U-100 syringe holds 250 mcg. More water makes each draw read more units. The table below shows 1–5 mL for every GHRP-6 vial size on sale.

What changes the calculated concentration?

Only two inputs: the amount of GHRP-6 in the vial and the water added. 5mg in 2 mL is 2.5 mg/mL; twice the water halves it, and the amount per draw then reads twice the units. A lot certificate’s measured content, where printed, replaces the label amount. HPLC purity is a share of peak area, not a measured mass, so it is shown only as an estimate.

What doses of GHRP-6 were used in research?

Never approved; human data are short physiology studies, chiefly single 1 mcg/kg intravenous boluses in healthy adults and children, plus a 34-hour continuous infusion at 1 mcg/kg/h in healthy men. The table on this page lists 3 sources with amounts, schedules and links.

What does GHRP-6 cost per mg?

The lowest current US price is $15.00 for 5mg at Amino USA (about $3.00 per mg, checked 2026-11-06). The calculator turns any vial price into cost per draw.

more calculators

Volume and concentration arithmetic for laboratory reconstitution; not medical advice. API: /api/calc. Syringe scales: 0.3 mL U-100, 0.5 mL U-100, 1 mL U-100, 0.5 mL U-40, 1 mL U-40, 1 mL syringe, 3 mL syringe.