PPeptide Bible

Peptide entry

IGF-1 LR3

Research peptidePeptide
Growth Hormone

Quick facts

Category
Growth Hormone
Primary goal
Growth Hormone
Dose pattern
Protocol-dependent
Treatment style
Fixed-dose or range
Status
Research peptide
Vial formats
1 mg

Evidence / context

Evidence: Limited. Hypertrophy and nutrient-partitioning support are reported use cases.

Available vial formats

IGF-1 LR3

1 mg
Mix 3.0 mLConcentration 333 mcg/mL

Dosing

  • Conservative 20 mcg per injection once per training day after training (6 units per injection)
  • Standard 40 mcg per injection once per training day after training (12 units per injection)
  • Aggressive 50-60 mcg per injection once per training day after training (15-18 units per injection) short cycle only if clearly tolerated
Cycle length4-6 weeks, then 6+ weeks off
TimingPost-workout with food/carbohydrates available.Avoid bedtime use if it affects sleep or glucose stability.

Reconstitution

Reconstitution:
1. Swab vial tops with alcohol.
2. Add 3.0 mL bacteriostatic water slowly.
3. Swirl gently - do not shake.
4. Refrigerate 2-8 C.

Concentration:
1 mg / 3.0 mL = 333 mcg/mL

U-100 conversion:
20 mcg = 6 units per injection
40 mcg = 12 units per injection
50 mcg = 15 units per injection
60 mcg = 18 units per injection

Support / expected effects

Side effects / tolerability

Practical tips

Storage

Refrigerated: ~30-45 days (sensitive).

Notes / compatibility

Compatibility

Do not mix with other peptides.

FAQ

What is IGF-1 LR3 explored for?

Hypertrophy/nutrient partitioning support (reported). Improved pumps in some. May enhance recovery with training.

How is IGF-1 LR3 reconstituted?

Reconstitution: 1. Swab vial tops with alcohol. 2. Add 3.0 mL bacteriostatic water slowly. 3. Swirl gently - do not shake. 4. Refrigerate 2-8 C. See the full section above for details.

What is a typical cycle length for IGF-1 LR3?

4-6 weeks, then 6+ weeks off

How are doses measured in syringe units here?

Units mean U-100 insulin-syringe gradations (1 mL = 100 units), not International Units. Use the calculator only when the vial concentration and injection volume are known.

Related references

Related peptides

CJC-1295 (DAC)CJC-1295 (NO DAC)GHRP-2HexarelinIpamorelinIpamorelin / CJC-1295 NO DAC BlendSermorelinTesamorelin

Categories

Growth Hormone

Goal guides

Muscle Retention While Cutting

Useful guides and tools

Reconstitution BasicsPeptide Cycle GuideU-100 Syringe Units ExplainedPeptide calculator
Calculate the exact draw for IGF-1 LR3Preloads the relevant vial format or fixed-ratio blend cycle.
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