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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.
+ Add
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.
+ Add
$ 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