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IGF Binding Protein-3

Measures IGFBP-3, the main carrier protein for IGF-1, paired with IGF-1 to give a clearer read on growth hormone status. Results usually in 3–5 business days.

$ 79.00All-in price
1Tests included

IGFBP-3 is the primary protein that carries IGF-1 in the blood, and its level also depends on growth hormone. Measured together with IGF-1, it helps confirm and interpret growth hormone status.

Included Tests

IGF Binding Protein-3
Growth-hormone binding protein; paired with IGF-1.
IGFBP-3
incl.in panel

What This Panel Measures

📈
Growth hormone carrier protein. IGFBP-3 transports IGF-1 and tracks growth hormone activity, adding context when paired with IGF-1.

Who Should Get This Panel

  • You're evaluating growth hormone status alongside IGF-1
  • You have symptoms of growth hormone excess or deficiency
  • Your provider recommended it as part of a hormone workup
  • You want a fuller picture than IGF-1 alone

Conditions Screened

Growth hormone deficiencyGrowth hormone excess (acromegaly)Pituitary dysfunction

Related Symptoms

FatigueChanges in muscle or body compositionReduced exercise capacity

When to Get Tested

Test alongside IGF-1 when evaluating growth hormone status. Like IGF-1, it's interpreted against age- and sex-specific ranges.

Understanding Your Results

Results post to your secure online account usually in 3–5 business days, compared to age- and sex-matched ranges. IGFBP-3 is most meaningful interpreted together with IGF-1, so your provider reviews them as a pair.

Frequently Asked Questions

Why pair IGFBP-3 with IGF-1?
Both depend on growth hormone, and looking at them together gives a more reliable read on growth hormone status than either alone.
Do I need to fast?
No fasting is required. You can eat and drink normally before your visit.
Is this billed to insurance?
No. You pay directly here, nothing is billed to insurance, and results go only to your secure account. It stays 100% confidential.

Pairs Well With: Same Blood Draw

IGF-1
The core growth hormone marker this test is paired with.
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Testosterone, Free & Total
Adds to a hormone and body-composition assessment.
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Comprehensive Metabolic Panel (CMP)
Provides broad metabolic context for a hormone workup.
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$ 79.00
✓ The price you see is the price you pay. No draw fees. No physician fees. No surprise bills. $ 79.00 is all-in.
Comparing prices? Some self-pay labs advertise a low number, then add ~$28 in "lab & physician fees" at checkout. We don't. What you see here is the whole cost.
⚡ We send your lab order electronically to the test center in 2–3 minutes. Nothing to print, nothing to bring. Just walk in and sign in.
📍 Can you get tested nearby?

Test centers don’t accept payment. You pay securely here; the lab just does the draw.
⚡ Results 3–5 business days🧪 1 tests

What happens after you order?

  • 1Your lab order form & test code appear in your secure online account, with your test center’s address.
  • 2We send your lab requisition to the test center electronically.
  • 3Walk in & get tested. Tests usually take 5 minutes or less.
📞 Need support? (866) 873-0879
$ 79.00all-in · no extra fees