Vitamin A (Retinol)
Currently unavailable in your state.
Your circulating vitamin A level, central to vision, immune function, and skin health.
- Member pricing close to cost, no upsells
- Schedule online, typical results in 4-5 days
- Clear guidance, results reviewed by a real clinician
- Follow-up care available
HSA/FSA eligible
About this test
Retinol is the active circulating form of vitamin A, a fat-soluble vitamin stored mainly in the liver and obtained from animal foods and provitamin A carotenoids in fruit and vegetables. It is essential for vision (especially night vision), immune defense, skin and epithelial cell turnover, and embryonic development. Low retinol points to deficiency from poor intake, fat malabsorption (celiac disease, pancreatic insufficiency, liver or bile disorders), and shows up as night blindness, dry eyes, dry skin, and frequent infections. High retinol reflects excess intake, usually from high-dose supplements, and can cause headache, bone and joint pain, liver strain, and, in pregnancy, birth defects.
This test reports retinol only. The separate Vitamin A and E panel adds alpha and gamma tocopherol if you also want to assess vitamin E status, which is the better choice when malabsorption or broad fat-soluble vitamin questions are on the table.
Consider it if
- Night vision problems, dry eyes, dry or scaly skin, or frequent infections
- Fat malabsorption from celiac disease, pancreatic insufficiency, or liver and bile disorders
- Taking high-dose vitamin A or cod liver oil and wanting to rule out excess
- Checking nutrient status on a very restricted or low-fat diet
- Headache, bone or joint pain, or liver concerns that could reflect vitamin A toxicity
Why are there member and non-member prices?
Members get Mito's no-markup price on tests. The non-member price is the standard price.
Mito membership is $9/month and unlocks member pricing across the catalog. It's how Mito is supported, so we don't have to mark up your tests or earn more when you buy more. Your member savings are applied at checkout.
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What's included
What's tested
This test measures a single biomarker: Retinol.
Test details
- Sample type
- Blood sample (amber serum)
- Collection
- Partner lab visit
- Preparation
- Fasting required (overnight)
- Results in
- Typical results in 4-5 days
Pre-test considerations
Overnight fasting is required. The sample must be protected from light, so collection follows specific handling. If you take vitamin A or a multivitamin containing it, note the dose and timing, since recent supplementation raises the result.
Results in as little as 1-2 business days
- 1 Book instantly
Click, book, done. Choose a convenient lab location near you. Transparent, up-front pricing.
- 2 Quick lab visit
Testing to fit your busy schedule, usually 15 minutes or less. Walk-in and appointments available.
- 3 Results in 1-2 business days
Your results post to your dashboard fast — then a clinician reviews them and your personalized action plan follows.
- 4 Expert guidance
Our clinicians will recommend next steps. Or book a same-day visit for comprehensive care.
Everything your health needs,
in one membership
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Cost-plus on every test you order
Members pay close to cost on every test, with lab fees passed straight through. The full receipt is itemized, never padded.
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Upload past labs and watch your trends over time. Every marker and visit lives in one longitudinal record, so all your care stays together.
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Year-round clinician support
Text anytime and get clinician-reviewed answers. When you want to go deeper, 1:1 consultations are available at affordable rates.
All for $9/month
Order any test or consult without joining. For $9/month, members unlock member prices, trend tracking, and year-round clinician guidance.
Mito Membership
$9 /mo
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Without membership
$0
pay as you go
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Frequently asked questions
View all FAQsHow does pricing work?
Every test shows the member price next to the standard non-member price, so you can see what membership saves you. Your price is our cost plus a small amount to run the service, never a profit on the test itself; Mito makes its money on the $9 membership, not on marking up your tests. Members pay even less, applied at checkout (membership is $9/mo, and you still pay the lab’s order fee). Prices are itemized before you pay, with no hidden fees.
Where do I get tested?
Choose a partner lab (Quest, Labcorp, or BioReference) at checkout. If your cart spans multiple tests, we consolidate the whole order onto a single lab so you only make one visit.
Is this eligible for HSA/FSA?
Yes. This test is HSA/FSA eligible, and you can pay with your HSA/FSA card at checkout.
When will I get my results?
Your results are typically visible within 1-2 business days of your lab visit. A clinician then reviews them, and your full analysis and personalized action plan — with clear next steps — follow once that review is complete. Specialty assays and at-home kits take longer; each test shows its turnaround before you buy.
Do I need a doctor’s order?
No. Mito provides the lab order for you, so you can book and get tested without a separate doctor visit.