IGF-1 LR3 Dosage Calculator & Research Doses

1Set Up Your Mix

0.167 mg/mL · 167 mcg/mL

1. Pick your peptide

2. How much peptide is in the vial? It's printed on the label — usually something like 5 mg

3. How much water are you adding? More water makes each dose easier to measure

4. How much do you want per dose?

All answers assume a standard 1 mL U-100 syringe, where 1 unit = 0.01 mL. That is the usual insulin syringe and the one every number here is based on.

Your Answer — IGF-1 LR3Your Answer

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24Draw To This Line

0.24That's This Many mL

25Doses In The Vial

1 mg ÷ 6 mL = 0.167 mg/mL → 40 mcg ÷ 0.167 mg/mL = 0.24 mL → × 100 = 24 units—

Looks good. Draw to 24 units on a 1 mL syringe. That is an easy amount to measure, and this vial gives you 25 doses.

2Week-By-Week Plan — IGF-1 LR3

Start low, work up

When	Dose	How Often	How Many mL	Draw To	Number Of Doses
Low reported	20 mcg	1× daily	0.12 mL	12 u	50 doses
Standard	40 mcg	1× daily	0.24 mL	24 u	25 doses
Upper reported	60 mcg	1× daily	0.36 mL	36 u	16 doses

Weeks until the top dose

4 weeks

Peptide used getting there

0.84 mg

Vials you'll need

1 × 1 mg

Once you're at the top dose

1.68 mg / 4 wk · 1.68 vials

Where this plan came from

Built from this peptide's dose range

Where this came from: Built from the doses listed for this peptide below — start at the lowest and step up, using the studies cited on this page. Nobody publishes a week-by-week plan for this peptide, so we built one: the doses are the researched ones shown below, and we simply put them in order from lowest to highest. Treat it as a starting point, not an official schedule.

3Common Doses — IGF-1 LR3

worked out for your mix

Level	Dose	How Often	How Many mL	Draw To	Doses In Vial
Weeks 1–2	20 mcg	daily	0.12 mL	12 u	14	0.28 mg
Weeks 3–4	40 mcg	daily	0.24 mL	24 u	14	0.56 mg
Week 5 onward per 4 weeks from here on	60 mcg	daily	0.36 mL	36 u	28	1.68 mg

Please read this. These numbers come from published research. They are here as reference, not as instructions. A lot of them come from lab studies rather than studies in people, and some of these peptides have never been given to a person at all.

About IGF-1 LR3About This Peptide

Growth Factor

Also known as

Long R3 insulin-like growth factor-1

Class

Growth Factor

Route

Subcutaneous

Half-life

~20–30 h

Evidence tier

Preclinical

An IGF-1 analogue engineered to resist binding-protein sequestration, giving far longer activity than native IGF-1. Carries genuine hypoglycaemia risk. Widely used as a cell-culture supplement; human research use is not supported by trial data.

Buy IGF-1 LR3this peptide

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Where These Numbers Come From

Preclinical — Preclinical and in-vitro data only — no human dosing trials

Insulin-like growth factor-I and muscle hypertrophy Adams GR, McCue SA. Journal of Applied Physiology, 1998

Mechanistic basis for the hypertrophy claim in preclinical models.

Find on PubMed ↗

Long-R3-IGF-I — properties and applications Francis GL, et al. Journal of Molecular Endocrinology, 1992

Characterises why the LR3 modification extends activity.

Find on PubMed ↗

Newest Studies — —

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Not reviewed by us. This list is pulled straight from Europe PMC as papers are published. Nobody has checked whether these are any good, or whether they change anything above. The dose numbers on this page only ever change after a person reviews the evidence.

Research Use Only — Confirm to Continue

IGF-1 LR3 Dosage & Reconstitution

1Set Up Your Mix

Your Answer — IGF-1 LR3Your Answer

2Week-By-Week Plan — IGF-1 LR3

3Common Doses — IGF-1 LR3

About IGF-1 LR3About This Peptide

Where These Numbers Come From

Newest Studies — —

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