Ferritin vs a full iron panel - what is the difference?

Ferritin measures your stored iron and is the best single early marker of deficiency. An iron and TIBC panel adds serum iron and your body's iron-carrying capacity, which helps separate iron-deficiency from other causes. Many people start with ferritin and add the panel if it is borderline.

Why is my ferritin normal but I still feel tired?

Ferritin is an acute-phase reactant, meaning infection, inflammation, or recent illness can push it up and mask true deficiency. If symptoms persist with a 'normal' ferritin, checking iron and TIBC alongside a CRP can reveal deficiency that ferritin alone hid.

What ferritin level is considered optimal for hair and energy?

Lab ranges start around 15-30 ng/mL, but many clinicians target higher for symptoms like hair shedding and fatigue (often 40-70 ng/mL or more). Ranges vary and this is general information, not medical advice - discuss your target with a provider.

Is a Ferritin worth it?

What it costs, whether to test at home or at Quest or Labcorp, and how to read your results - reviewed and updated June 2026.

The short answer

Yes when fatigue, hair loss, or iron questions are on the table. Ferritin is the most sensitive early marker of iron deficiency - it falls before a CBC turns abnormal - so it catches low iron long before full-blown anemia.

$24.99 at TestWellResults in 1–3 business daysNo doctor's visit neededCPT 82728

Who should order it (and who can wait)

Worth it if you...

•Fatigue, hair shedding, restless legs, or shortness of breath on exertion
•People with heavy periods, or vegetarians/vegans at higher risk of low iron
•Endurance athletes, blood donors, and pregnancy (higher iron demand)
•Confirming iron deficiency behind an abnormal CBC

You can probably wait if you...

•You have an active infection or inflammation right now - ferritin rises with inflammation and can read falsely normal
•You already confirmed and are simply between routine rechecks

We would rather you order the right test than the most expensive one.

At-home vs Quest vs Labcorp

The most common question we get. The short version: the lab and the result are the same - you are choosing where the blood is drawn.

Walk into a lab

Get drawn at any Quest or Labcorp location - thousands nationwide, often same-day. Best for speed and lowest cost.

At-home draw

A mobile phlebotomist comes to you, where available. Same venous sample, drawn at your kitchen table.

Same result

Whichever you pick, it is run on the same CLIA-certified analyzers with the same reference ranges.

Ferritin is a venous blood draw at Quest or Labcorp, or an at-home mobile draw where available. No fasting is needed. Because ferritin also rises with inflammation, pairing it with [iron and TIBC](/tests/iron-and-tibc) or a [CRP](/tests/crp) helps interpret a borderline result.

How to read your results

The markers that matter most and what an out-of-range value can mean. Reference ranges vary by lab, age, and sex.

Marker	Typical range	What it means
Ferritin	~30-400 (men) / ~15-150 (women) ng/mL	Under ~30 ng/mL strongly suggests iron deficiency even without anemia; high levels can mean inflammation, liver issues, or iron overload.

Frequently asked questions

Ready to order your Ferritin?

$24.99, physician-authorized, results in 1–3 business days. No insurance or doctor's visit required.

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About this guide

Reviewed June 20, 2026. This is general health information, not medical advice, diagnosis, or treatment. Reference ranges vary by laboratory, age, sex, and clinical context - always interpret results with a qualified healthcare provider. Lab analysis is performed at CLIA-certified Quest Diagnostics and Labcorp facilities.