Product photo · 1mg
Reports describe submitted samples for this amount and form.
IGF-1 LR3
A modified growth factor studied in cells and animals. It differs from natural IGF-1.
What does the amount mean?
10 mg is an amount of material. Read the label to see whether it means per vial, per tablet, or per package.
Read more1 vial · 1mg in each vial
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Lab resultsIGF-1 LR3, explained
A modified growth factor studied in cells and animals. It differs from natural IGF-1.
What it’s used for
Muscle research
Animal studies explore muscle growth and reduced muscle breakdown.
Body composition
Body composition is a common reported goal; clinical evidence for this exact compound is absent.
Tissue repair
Reported wound, tendon and burn uses draw on animal work or studies of regular IGF-1.
Nutrient use
Reported theories concern nutrient and blood-sugar handling; longer-term effects may differ.
Nasal brain research
Nasal dosing changed brain plaques in mice but did not improve thinking-related measures.
What to expect
- Weeks 1–6
Users report a sense of fullness and better recovery
- 1–2 weeks after stopping
Effects wear off
Side effects & safety
Side effects
- Low blood sugar, which can be severe; eating doesn't guarantee protection
- Concerns about unwanted organ growth and cancer-cell growth
- Blood amino-acid levels dropped in animal testing; what that means for people is unknown
Stop and get help if
- Signs of low blood sugar or confusion
- Extreme fatigue
- A new lump or mass
- Belly getting larger
- Joint or hand symptoms
- Headache or vision changes
Avoid or check first
- Taking insulin — the combination risks life-threatening low blood sugar
- Taking metformin — glucose effects need clinical review
- Cancer — malignancy and cancer-cell growth are listed concerns
In sport
- The reference reports: banned at all times.
How much people usually take
Research beginner protocol
Once daily, post-workout · under the skin · injectable
Intermediate research use
Once daily, post-workout or morning · under the skin or into muscle · injectable
Advanced research protocol
Once daily or split AM/PM · under the skin or into muscle · injectable
Women's research protocol
Once daily · under the skin only · injectable
How to mix and store it
How many units do I draw?
How to mix5 steps
Wipe both tops
Wash your hands, then swab both rubber vial tops with alcohol. Let them dry.
Draw the water
Use a new sterile syringe to draw the water volume selected in the calculator.
Run it down the wall
Introduce the water slowly down the inside glass wall, rather than directly onto the powder.
Swirl, don’t shake
Gently swirl or roll the vial. Allow time for the powder to dissolve.
Label the vial
Write the preparation date and the amount and final volume on the vial label.
Injecting under the skinWhere, rotating sites, which syringe
Where
Subcutaneous injections go into the fatty layer beneath the skin. Common sites include the abdomen, outer thigh and upper arm. Keep at least 5 cm from the navel and avoid bruised, irritated or damaged skin.
Rotate sites
Change the spot each time. Clean the skin and let it dry.
Single-use equipment
Use a new sterile needle and syringe each time. Place used needles in a sharps container.
Storage
Storage
Refrigerated. Reported period: 7 days.
Combining it with others
Use caution
- HGH
Combined effects on the growth signal IGF-1 may add to low blood sugar and growth-related effects.
- PEG-MGF
Related growth signals may add to side effects.
- CJC-1295 (no DAC)
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- CJC-1295 with DAC
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- Sermorelin
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- Tesamorelin
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- Ipamorelin
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- GHRP-6
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- Hexarelin
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- MK-677
Combined effects on the growth signal IGF-1 may add to low blood sugar and other side effects.
- CJC-1295 / Ipamorelin
Both affect the growth signal IGF-1.
- Semaglutide
Both lower blood sugar, which may increase the risk of it falling too low.
- Tirzepatide
Low blood sugar.
- Retatrutide
Low blood sugar.
- Survodutide
Low blood sugar.
- Mazdutide
Low blood sugar.
- Orforglipron
Low blood sugar.
- Dihexa
Concern about their combined effects on cell-growth signals.
Other combinations
What the research says
The question being studied
A study compared how LR3IGF-I binds to carrier proteins, acts in lab-grown muscle cells and affects growth in rats. A separate study examined how this modified IGF-1 molecule folds.
Lab results
1mg · 1 linked report
- Purity · sample result
- 98.498% / 98.344% / 98.309%
- Amount found · IGF-1 LR3
- Sample 1: 1 mgSample 2: 1.02 mgSample 3: 1.03 mg
Separate sample results, in report order.
Purity & amount
Sample batch IGF04
These are submitted-sample results, separate from general research or popularity ratings. Report presentation: Peptify Analytics. Source laboratory: Janoshik Analytical. The connection to the batch you would receive is not confirmed here.
Videos worth watching
Research conversations, with their original context.
Video resources are not available for this guide.
Read the original sourcesProduct details
- Form
- Vial
- Amount
- 1mg
Sources & further reading
Follow each reference to its original publication or documentation.
- Primary research · 1999Probing the disulfide folding pathway of insulin-like growth factor-I (opens in a new tab)
- Reference reportPepSavvy: IGF-1 LR3 (opens in a new tab)
- Official documentationCDC: Preventing Unsafe Injection Practices (opens in a new tab)
- Official documentationMedlinePlus: Subcutaneous injections (opens in a new tab)
Questions
What does 1mg mean?
It describes an amount of material in the unit stated on the label. It does not describe liquid volume, a dose, or how to prepare the product.
Read more about amountsDoes purity mean it is sterile?
No. Purity and sterility require different tests. An endotoxin result also does not establish sterility.
About testingCan I calculate concentration?
You need a mass in mg and either a final volume or a target concentration. IU and blends require separate, verified information.
Use the mixing helper for this amount ↑How can I get help with an order?
Open your order details to check its current status. Shipping and support information are available below.
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