Research Comparison

IGF-1 LR3 vs Sermorelin

IGF-1 LR3 and Sermorelin are often compared because both sit in growth-hormone axis research. IGF-1 LR3 acts on IGF-1 receptor (IGF-1R) and is studied for cellular growth & anabolic-signaling research, while Sermorelin acts on GHRH receptor (GHRHR) and is studied for pituitary GH-secretion research. Both are supplied as lyophilized powder for in-vitro laboratory research only — this page compares mechanism and research status, not dosing or human use.

IGF-1 LR3

Growth-hormone axis

Sermorelin

Growth-hormone axis

Category
Growth-hormone axis
Growth-hormone axis
Mechanism / target
IGF-1 receptor (IGF-1R)
GHRH receptor (GHRHR)
Research status
Research-use-only recombinant analog
Research-use-only (former Geref diagnostic)
Studied for
Cellular growth & anabolic-signaling research
Pituitary GH-secretion research
Form
Lyophilized powder
Lyophilized powder

IGF-1 LR3

Cellular growth & anabolic-signaling research.

Read the guideView IGF-1

Sermorelin

Pituitary GH-secretion research.

Read the guideView Sermorelin

Frequently asked

What is the difference between IGF-1 LR3 and Sermorelin?
The main difference is mechanism and research stage. IGF-1 LR3 targets IGF-1 receptor (IGF-1R) (research-use-only recombinant analog) and is studied for cellular growth & anabolic-signaling research; Sermorelin targets GHRH receptor (GHRHR) (research-use-only (former geref diagnostic)) and is studied for pituitary GH-secretion research. Both are research-use-only compounds, not for human or animal use.
Are IGF-1 LR3 and Sermorelin approved for human use?
No. Renova Wellness supplies both strictly for in-vitro laboratory and scientific research use only. Research status differs — IGF-1 LR3: research-use-only recombinant analog; Sermorelin: research-use-only (former geref diagnostic) — but neither is sold for human or animal consumption, and no medical, therapeutic, or dosing claims are made.
How is purity verified for IGF-1 LR3 and Sermorelin?
Every lot of both compounds ships with its own per-batch Certificate of Analysis — identity by mass spectrometry, ≥98% purity by HPLC, and a unique lot number you can verify against the vial in your hand.

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Research use only. This comparison covers mechanism, target, and research status. It is not medical, therapeutic, or dosing advice. Compounds sold by Renova Wellness™ are for in-vitro laboratory research and are not for human or animal consumption.