Growth Hormone Axis

IGF-1 LR3 lab report: purity and COA

Every published certificate of analysis for the IGF-1 LR3 products we link to, copied lot by lot as of Nov 1, 2026. How to read a COA.

Average purity

99.25%

2
reports: 2 lots; 99.03%
lowest: of any lot; Jul 30, 2026
latest test: 2 ISO 17025, 2 endotoxin

IGF-1 LR3 lots by purity

Under 98%: ask questions98–99%: acceptable99% and up: strong

The large dot is the most recently tested lot. Labs: ILS Labs.

IGF-1 LR3

2 lots · average 99.25% · lowest 99.03%

Lot	Tested	Size	Purity	Measured	Endotoxin	Sterility	Lab
IGF0002	Jul 30, 2026	1 mg	99.03%	1.03mg	0.097 EU/mL	No Growth	ILS Labs (ISO 17025)	PDF
IGF0001	Jun 10, 2026	1 mg	99.47%	1.06mg	< 0.05 EU/mL	No Growth	ILS Labs (ISO 17025)	PDF

IGF-1 LR3 on Amino Club ↗ Research-use-only listing — not for human use.

Print the IGF-1 LR3 card

Its usual mix, what one unit holds, storage, and a QR code to its lab reports. One of 41 cards in the 16-page Starter Kit, with mixing steps, a syringe guide, a COA checklist, a vial log and labels.

Get it as the Starter Package: the kit plus our 3D-printed case for 14 vials (3 mL to 10 mL), $25 shipped free.

Get the package · $25

16 printable pages, instant access. $34 bought separately. See the package

Growth Hormone Axis

IGF-1 LR3

Also Long R3 IGF-1, Long Arg3 IGF-1

Not FDA approvedWADA bannedEvidence

Scan for lab reports

Usual mix: 1 mg + 2 mL = 0.5 mg/mL
1 unit holds: 5 mcg
Mix with: Bacteriostatic water, or 0.6% acetic acid as some sources suggest for stability
Powder: Keep sealed vial in the freezer
Once mixed: About 21 days at 2–8 °C

Lab reports: 2 lots, average purity 99.25%

What to look for on a IGF-1 LR3 COA

A lot number that matches the vial in your hand, and a test date after that lot was made.
HPLC purity of 98% or higher, with mass-spec identity confirming it is IGF-1 LR3.
A named lab, ideally ISO 17025 accredited, and endotoxin and sterility results for anything that will be injected.
A measured amount close to the label. Large gaps are a red flag.

Purity is HPLC area percent as reported by the lab; some reports confirm content and identity without a purity figure. Reports are the supplier’s published PDFs; we don’t test vials ourselves. See our methodology and affiliate disclosure.

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More on IGF-1 LR3

Lot

Tested

Size

Purity

Measured

Endotoxin

Sterility

Lab

IGF0002

Jul 30, 2026

1 mg

99.03%

1.03mg

0.097 EU/mL

No Growth

ILS Labs (ISO 17025)

PDF

IGF0001

Jun 10, 2026

1 mg

99.47%

1.06mg

< 0.05 EU/mL

No Growth

ILS Labs (ISO 17025)

PDF

Print the IGF-1 LR3 card

Its usual mix, what one unit holds, storage, and a QR code to its lab reports. One of 41 cards in the 16-page Starter Kit, with mixing steps, a syringe guide, a COA checklist, a vial log and labels.

Get it as the Starter Package: the kit plus our 3D-printed case for 14 vials (3 mL to 10 mL), $25 shipped free.

16 printable pages, instant access. $34 bought separately. See the package

What to look for on a IGF-1 LR3 COA

A lot number that matches the vial in your hand, and a test date after that lot was made.

HPLC purity of 98% or higher, with mass-spec identity confirming it is IGF-1 LR3.

A named lab, ideally ISO 17025 accredited, and endotoxin and sterility results for anything that will be injected.

A measured amount close to the label. Large gaps are a red flag.