Live data — every record is aggregated from real public sources. VialGrade never sells; it links out to the vendor.
VialGrade
Back to market
IGF-1 LR3 1mg 1mg — the vendor's own product photo
Independent testLive dataGrowth factor peptide
Chameleon PeptidesAGrade A

IGF-1 LR3 1mg 1mg

A recombinant analog of insulin-like growth factor 1 carrying an arginine substitution and a 13-amino-acid N-terminal extension.

Observed price

$374$374.0/mg$376+316% vs median $/mg

Median $/mg

$90.0/mg

Range $/mg

$30.1/mg–$599.6/mg

This listing

#17 of 18

mid-market

Real / active mg

$381.1/mg

low $30.1/mgmedian $90.0/mghigh $599.6/mg

Compared by cost-per-mg against 18 sized listings of this compound. Real / active mg divides cost-per-mg by measured purity. Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Purity vs grade

No buyer reviews yet
Availability
In stock
Checked
4 days ago
Buy at Chameleon Peptides

Hands you to chameleonpeptides.com — VialGrade doesn’t sell or take payment

Some vendor links may earn VialGrade a commission. It never changes a grade, a price, or where a listing ranks.

Chameleon Peptides

Unclaimed page

13

Lab tests

99.4%

Median purity

90

Listings

Real listing aggregated from the vendor's public page. Buying happens on their site, never on VialGrade — we take no payment and hold no stock. These are sold for laboratory research use only, not for human consumption; the seller sets their own terms and age limits at checkout.

Best-case evidence

Independently tested — with one caveat

  • An independent lab record backs Chameleon Peptides' IGF-1 LR3 at 98.1% — the exact evidence most listings lack.
  • A certificate covers one submitted batch, not every vial — confirm it matches the batch you receive.

How to verify this yourself

Check the seller's COA is for YOUR batch number, then paste it into Verify to confirm it's a real, unedited Janoshik record.

Open the Verify tool

Compare by real cost

Every IGF-1 LR3 listing, cheapest per mg first

Sticker prices hide the size, so listings are ranked by what a milligram actually costs — with independently tested purity where it exists. All 24 are here: the last 6 are listings whose vendor never published a strength we can read, so they have no per-mg figure to sort on.

#VendorSizePricePer mgTested purityReal $/active mg
1Umbrella Labs10mg total10 Milligrams each$301$30.1/mg · too cheap?—$30.7/mgbest valueView
2Chameleon Peptides10mg total10-vial kit each$616$61.6/mg98.1%$62.8/mgView
3Modern Aminos1mg total$64$64.0/mg—$65.2/mgView
4Ascend Bio LabsUnavailable10mg total10 Vials / 1MG each$640$64.0/mg—$65.2/mgView
5Behemoth LabzUnavailable1mg total$67$67.5/mg—$68.7/mgView
6Ascend Bio LabsUnavailable3mg total3 Vials / 1MG each$204$68.0/mg—$69.3/mgView
7Ascend Bio LabsUnavailable2mg total2 Vials / 1MG each$144$72.0/mg—$73.4/mgView
8Bluum Peptides1mg total$75$75.0/mg—$76.4/mgView
9Peptide Pros1mg total$90$90.0/mg—$91.7/mgView
10Umbrella Labs1mg total$90$90.0/mg—$91.7/mgView

Real $/active mg divides the price-per-mg by the measured purity — the honest cost of the actual peptide, so a 90%-pure vial isn’t compared as if it were 99%. Too cheap? flags a listing far below the market rate — often underdosing or a fake, not a deal. The crown marks the cheapest non-outlier; best value marks the lowest real cost per active mg. A vendor shown as Unavailable or Low stock is priced here but not currently buyable.

Understand this compound

What is IGF-1 LR3?

Limited human dataa.k.a. Long R3 IGF-1

A souped-up, longer-lasting lab version of IGF-1, the growth factor your body releases in response to growth hormone. Studied for muscle growth, with a real risk of low blood sugar.

Muscle & performance
⚠

Good to know: Non-selective IGF-1 receptor activation raises theoretical concerns about abnormal tissue growth, and its extended half-life increases the risk of hypoglycemia associated with IGF-1 pharmacology.

How does IGF-1 LR3 work?

The science

A modified 83-amino-acid IGF-1 analog with an Arg3 substitution and a 13-amino-acid N-terminal extension that reduces binding to IGF binding proteins, extending half-life (~20-30 hours) and activating IGF-1 receptor PI3K/Akt and MAPK/ERK pathways.

Mechanism of action from published research — how the molecule behaves, not a claim about any product or any human-use effect.

What is IGF-1 LR3 researched for?

Studied for muscle hypertrophy/hyperplasia and cell proliferation via satellite cell activation, in muscle-growth and metabolic research.

  • Muscle & performanceStudied in muscle-growth, repair, and physical-performance research.
How far has the research gone?

Limited human data; evidence is mostly mechanistic, lab, and animal research, without clinical validation in humans for muscle-building use.

Where the science stands — an approved drug is not the same as the research-grade material a vendor sells, which is unregulated regardless.

What should I check before buying?
  • Independent purity. Look for a third-party COA (Janoshik or MZ) showing a measured purity — not just a number the vendor typed.
  • Batch match. The strongest evidence is a certificate for the exact batch you’ll receive, attributed to this vendor — check the cross-verification on the listing.
  • Vendor reputation. See how the vendor is talked about in the community before trusting a new name.

Research context only — VialGrade never gives dosing, medical, or human-use guidance.

The lab evidence

What we could verify

Each row is a separate question with its own answer — one green row never vouches for the rest.

Identity

Established

An independent lab record backs this vendor's testing for this compound.

Measured purity

Established

Independently measured 98.13%. Read from the certificate, not re-measured by VialGrade. Purity is not a grade.

Batch traceability

Unknown

No batch on this listing matches an independent record.

Sterility

Not tested

A purity certificate doesn't measure this — no such test on record.

Dose accuracy

Unknown

Not something VialGrade measures — no test on record.

These certificates are for IGF-1 LR3 across every maker VialGrade tracks — not necessarily Chameleon Peptides’s own stock. This listing’s specific evidence is the matrix above.

Independent testing

Independent lab tests on record for IGF-1 LR3

Real, publicly verifiable third-party tests. Purity is read from the certificate itself. A test reflects one lab’s result for one submitted batch — not a guarantee that every vial matches.

How does this data get here?

Every record below is a real certificate of analysis, gathered two ways: from the public verification feeds that independent labs (like Janoshik) publish, and from the certificates vendors post on their own product pages. We open each certificate document and read the measured purity, content, batch, and date directly off it — a scraper can’t read a number printed inside an image, so this is done by machine vision, then recorded here with a link back to the original.

Nothing here is typed in by a vendor or invented by us. Where a certificate is missing, we say so rather than filling the gap.

We re-check the lab feed, too. A “still listed” tag means the certificate is currently public in Janoshik’s database — we re-verify against the live feed and stamp the date. If a cert is later pulled, the tag flips. It’s a freshness check on the same source, not a second independent opinion.

What a certificate does & doesn’t prove

Three different questions. Purity (“how clean?”), identity (“is it the right molecule?”, a mass-spec test), and content (“did I get the labeled mg?”) are separate. A vial can be 99% pure and still be the wrong peptide, or the right peptide underdosed. We flag the measured dose against the label above; underdosing is the most common real fraud.

Who submitted the sample matters. Most of these are vendor-submitted — the seller chose which vial to send, so one good certificate doesn’t prove every batch is the same. The gold standard is a blind test, where a buyer sends a vial they bought as a normal customer. Same label doesn’t prove same product; same batch number doesn’t prove same batch.

98.1%

highest tested purity

CertificateManufacturerBatchPurityContent / doseLab
Certificate of analysisChameleon Peptides—98.13%1.08 mgJanoshik Analytical View
Independently backed

Independent test on record — 98.13%

This listing doesn't advertise third-party testing, but we do hold an independent record for Chameleon Peptides's IGF-1 LR3, measured at 98.13%. Bonus evidence, not a guarantee of this specific batch.

  • Independent record. A third-party test references Chameleon Peptides for IGF-1 LR3 at 98.13%.

Certificate analyzed 06 MAR 2026

Open the independent certificate

Cross-checks the vendor’s testing claim against independent lab records. Read from the certificate, not re-measured by VialGrade. Purity is not a grade. Never a statement that a product is safe, sterile, or correctly dosed. What “grade” actually means

Price trend

—

Every observation
DateObserved
$79.20
$673.20
$376.20
$374.00

32 checks since Aug 5, 2026. Too short a span for a 30-day change. Latest $374.00 on Sep 28, 2026. Last checked 4 days ago.

US legal statusBanned in drug-tested sport (WADA/USADA)

Research-use-only — not FDA-approved

Sold “for research use only,” this compound is not FDA-approved for human use and has not been evaluated for safety, purity, or sterility in people. It is generally not a scheduled controlled substance, so buying it as a research chemical is typically not itself a drug crime — but marketing or using it as a drug is not lawful, and it is not a dietary supplement.

Read the full US law →

General information, not legal or medical advice. VialGrade sells nothing and encourages no human use.

Same compound

See the full IGF-1 LR3 market — all 24 vendors, price history & lab tests