SiPhox Health Review: At-Home Blood Testing, Price, Panels, and Folate and B12

SiPhox Health is an at-home blood-testing membership. It mails a kit that collects a small blood sample from your upper arm, and you choose to test monthly, quarterly, or every 6 months; as of October 2026 it lists the membership at $99 as an introductory offer, plus shipping.¹ Folate and vitamin B12 appear only in its upgraded Ultimate 360 panel among the panels we checked.²³ This researched overview covers how SiPhox works, its panels and prices, lab standards, and how it compares with Function Health and Superpower. We have not used SiPhox; product facts come from SiPhox's own pages, checked October 2, 2026.

Quick answer: who SiPhox suits, and who should skip it

SiPhox may suit someone who dislikes lab visits or needles, wants to track a set of markers more often than twice a year, and is comfortable collecting a sample at home. SiPhox says you can change your cadence or cancel anytime.¹

It may not suit you if:

• You want folate and B12 without paying for an upgrade. Only the Ultimate 360 panel lists them among the panels we checked.²³
• You want a very large panel. SiPhox says its most extensive panel has up to 62 biomarkers, fewer than the yearly totals Function and Superpower list.²⁴⁵
• You need a lab that matches your doctor's. MedlinePlus advises using the same lab when tracking trends, because methods and ranges differ.⁶

How SiPhox works

SiPhox describes four steps:¹

1. Join and pick a cadence. Monthly, quarterly, or every 6 months. SiPhox says you receive a new kit at each interval and can pause or cancel.¹
2. Pick a panel. Choose from four standard panels at no extra cost and switch anytime, or upgrade.⁷ Kits ship within 3 days, according to SiPhox.¹
3. Collect at home. The EasyDraw device attaches to your upper arm and collects blood with a single click, with live 1:1 support. SiPhox says it avoids vein draws and finger pricks and takes about 5 minutes. SiPhox says the sample is picked up the same day and processed at a CLIA-certified lab.¹
4. Get results and a plan. SiPhox says results arrive in 7 to 10 days, with a dashboard, supplement and lifestyle suggestions, and an AI assistant called Sai.¹

SiPhox also lets members upload outside lab results and sync wearables such as Apple Watch, Oura, and Fitbit.⁷¹ It promotes paid extras such as coaching sessions and discounted whole-body MRI through a partner.¹

Panels and what's included

SiPhox lists optional add-ons for its panels: a complete blood count (+$45) and IGF-1 (+$70), or both for $100.²

The Ultimate 360 panel lists markers across heart, inflammation, metabolic, thyroid, hormones, nutrition (vitamin D, ferritin, iron studies, vitamin B12, folate), liver, kidney, and PSA.² It does not include a full complete blood count unless you add it.²

Folate and B12: what an at-home result can and cannot tell you

If you choose Ultimate 360 for its folate and B12 results, a few points help:

• Folate reflects recent intake. Serum folate responds to what you ate and took recently; red blood cell folate reflects longer-term status.⁸⁹ SiPhox did not list RBC folate on the panel pages we checked.
• High folate is usually from supplements or fortified food. It is not a diagnosis by itself.¹⁰⁹
• B12 and folate overlap. Both deficiencies can cause large red blood cells and similar symptoms. A clinician usually checks a complete blood count with both, which is one reason the CBC add-on may be worth asking about.¹¹¹²²
• Ranges vary. Read your result against the range on your SiPhox report, and know that numbers from different labs are not directly comparable.⁹⁶

See our folate blood test guide and folic acid and vitamin B12 for more.

Lab standards, privacy, and company facts

From SiPhox's own pages:¹

• Lab: samples are processed at a CLIA-certified lab, and the homepage describes its labs as CLIA and CAP accredited.
• Medical team: SiPhox lists a chief medical officer and other physicians and advisors.
• Privacy: SiPhox says it has a strict no-sell policy for personal information and that you can delete your data from its servers at any time.
• Payment: HSA/FSA eligible; cancel anytime.

We could not open the answers in SiPhox's FAQ (including its answer on how the device compares with standard labs), so we have left out claims about accuracy compared with a standard venous draw.

Pros and cons

From published facts, not our own use:

How SiPhox compares

For more, see our Function Health review, Superpower review, and Superpower vs Function Health. For single tests without a membership, see our at-home blood test guide.

What to consider before frequent testing

Testing more often gives more numbers, but not necessarily more answers. MedlinePlus notes that it is common for healthy people to sometimes have results outside a reference range, and that results only make sense with your history and exam.⁶ A Cochrane review of general health checks in adults found little or no effect on deaths from any cause or from cancer, and noted that screening leads to more tests and treatments.¹⁷ That review did not study SiPhox, but it is a reason to agree with a clinician in advance on which results would lead to action.

Questions to ask your clinician

• Which markers are worth tracking for me, and how often?
• Would you accept results from an at-home device, or should I repeat key results at your lab?⁶
• If I test folate and B12, do I also need a complete blood count?¹¹¹⁰
• Are any recommended supplements safe with my medicines?¹⁸

This article is for general education and is not medical advice. Doses and needs differ from person to person, so talk with your clinician or pharmacist about your situation. Read our editorial policy and medical disclaimer.