Growth HormoneView COA
IGF-1 LR3
Long Arg3 IGF-1
4.9 — read reviewsAnabolic signaling, long half-life.
A modified version of insulin-like growth factor 1 with a longer half-life and reduced binding to IGFBPs. Studied for muscle growth, recovery, and anabolic signaling.
≥99% HPLCMass-Spec VerifiedEndotoxin TestedJanoshik Lab
$100
1mg vial · bulk discounts up to 40%
Researched Benefits
- Muscle protein synthesis
- Hyperplasia signaling
- Nutrient partitioning
- Recovery support
Typical Research Protocol
Typical: 20–50 mcg subcutaneous, daily post-workout.
Half-life
~20–30 hours
For laboratory research use only. Not for human consumption, diagnosis, or treatment.
Dosing Reference
- Typical Dose
- 20–50 mcg per dose
- Frequency
- Daily, post-workout
- Route
- Subcutaneous (near trained muscle)
- Cycle Length
- 4–6 weeks on, 4 weeks off
Reconstitution:
Add 1 mL bacteriostatic water to a 1 mg vial → 1,000 mcg/mL. Draw 5 units for 50 mcg.Storage:
Lyophilized: refrigerate. Reconstituted: refrigerate, use within 14–21 days.Side Effects & Cautions
Reported in research
- •Hypoglycemia symptoms (eat before/after dosing)
- •Localized tissue growth at injection site
- •Joint discomfort at higher doses
Contraindications
- •Active malignancy research without oversight
- •Diabetic research subjects (insulin-like effects)
- •Pregnancy/lactation: not studied
Reconstitution Calculator
Convert vial size + BAC water into draw units.
Concentration5000 mcg / ml
Per insulin unit50.00 mcg / unit
Volume per dose0.050 ml
Draw to5.0 units
For laboratory reference only. Verify all calculations independently. Atlas Labs products are sold for research use, not human consumption.
Lab-verified quality
Every lot ships with a downloadable Certificate of Analysis.
≥99% HPLCMass-Spec VerifiedEndotoxin TestedJanoshik Lab
- HPLC purity & identity by Janoshik Analytical
- Mass-spectrometry confirmation of sequence
- LAL endotoxin testing per lot
- Cold-chain shipping with thermal protection
Research Citations
Peer-reviewed studies referenced in our product summary.
Frequently Stacked With
Researchers often combine IGF-1 LR3 with these peptides.
Frequently Asked Questions
LR3 has a much longer half-life (~20–30 hours vs ~10 minutes) and reduced binding to IGFBPs, giving more sustained anabolic signaling.
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