IGF-1
Measures insulin-like growth factor 1, a stable marker of growth hormone activity β relevant to metabolism, muscle, and healthy aging. Results usually in 2β3 business days.
IGF-1 is produced by the liver in response to growth hormone and stays steadier through the day than growth hormone itself, making it the preferred way to gauge growth hormone status. It's involved in metabolism, muscle maintenance and aging.
Included Tests
What This Panel Measures
Who Should Get This Panel
- You're evaluating growth hormone status
- You have symptoms of growth hormone excess or deficiency
- You're interested in metabolic and aging markers
- You want a baseline as part of a hormone or longevity workup
Conditions Screened
Related Symptoms
When to Get Tested
Test when evaluating growth hormone status or as part of a hormone or longevity panel. IGF-1 is interpreted against age- and sex-specific ranges, since levels naturally decline with age.
Understanding Your Results
Results post to your secure online account usually in 2β3 business days, compared to age- and sex-matched ranges. Because IGF-1 falls with age, context matters β abnormal results are typically followed up with additional testing by your provider.
Frequently Asked Questions
Why measure IGF-1 instead of growth hormone directly?
Do I need to fast?
Is this billed to insurance?
Pairs Well With β Same Blood Draw
Test centers donβt accept payment β you pay securely here; the lab just does the draw.
What happens after you order?
- 1Your lab order form & test code appear in your secure online account β with your test centerβs address.
- 2We send your lab requisition to the test center electronically.
- 3Walk in & get tested β tests usually take 5 minutes or less.