IGF-1 LR3 is a long-acting analog of insulin-like growth factor 1 typically dosed daily or post-workout. Enter your vial size, the bacteriostatic water you'll add, and your target dose — the visual syringe below shows exactly where to pull the plunger.
Common vial size for IGF-1 LR3 is 1 mg (1,000 mcg).
= 0.1 mg | Typical range 50–150 mcg (0.05–0.15 mg) per injection.
1 mg = 1,000 mcg (micrograms). Most peptide protocols are written in mcg.
IGF-1 LR3 (Insulin-like Growth Factor-1 Long R3) is an 83 amino acid analog with an arginine substitution at position 3 and a 13 amino acid N-terminal extension. This modification extends its half-life to roughly 20–30 hours and reduces binding to IGF-binding proteins, increasing bioavailability. Research protocols commonly use 50–150 mcg daily, injected subcutaneously or intramuscularly, often post-workout to capitalize on nutrient partitioning.
Standard cycle length is 4–6 weeks on followed by an equal-length off period to restore natural IGF-1 sensitivity. Always start at the lower end of the range and assess tolerance.
AnyPeptides doesn't sell peptides — we send you to Branch Peptides, our trusted research grade source. Use code ANYPEPTIDES15 for 15% off your first order.
Discount may end or change without notice.
View IGF-1 LR3 at Branch Peptides →Every step below uses the numbers you entered above.
Swab the rubber tops of the 1 mg IGF-1 LR3 vial and the bacteriostatic water vial with fresh alcohol pads. Let them air dry for a few seconds.
Pull 1 mL of bacteriostatic water into a reconstitution syringe (usually a 3 mL syringe with a 21g needle).
Inject the water against the inside wall of the vial, don't blast it directly onto the powder. This protects the peptide from shear damage.
Gently swirl until the powder is fully dissolved and the liquid is clear. Never shake, foaming denatures the peptide.
On your 100-unit (1 mL) insulin syringe, pull the plunger back until the rubber tip lines up with 10, that's your 100 mcg dose. Tap out any air bubbles, then inject as directed.
Cap the vial and store at 2–8 °C (36–46 °F). Most reconstituted peptides remain stable for 3–4 weeks refrigerated.
Use code ANYPEPTIDES15 for 15% off your order.
Discount may end or change without notice.
Related tools and guides across the site.
Assemble a full peptide cycle with dosing, schedule, and shopping list in a few clicks.
Side by side comparison of dosing, half life, goals, and cost across popular peptides.
A first time buyer walkthrough: what to order, supplies you need, and your first injection.
Searchable answers to the most common questions about dosing, safety, storage, and stacks.
Plain English definitions for peptide terminology used across the library.
Step by step: mixing BAC water, drawing the exact dose, storage, and injection technique.