Quick answer: If you are wondering how much are function health add on tests, they cost roughly $9 to $199 per individual panel on top of the base membership fee, which is $499 per year as of mid-2026. The most popular extras, such as heavy metals, DUTCH hormone panels, and advanced cardiovascular markers, typically run $49 to $149 each. Once a member adds two or three of the panels people most commonly want, the total annual bill usually lands between $650 and $900, which puts it above the all-inclusive flat price of competing services like Superpower.
What Does Function Health Actually Charge for Add-On Tests?
Function Health add-on tests are priced individually, and the range is wide. Simple single-marker panels like a vitamin D level can run as low as $9 to $19. Mid-tier specialty panels, including SIBO breath tests, organic acids, or advanced thyroid antibody panels, typically fall in the $49 to $99 window. The premium panels, full DUTCH hormone metabolite testing, heavy metal urine panels, or comprehensive stool microbiome analysis, tend to cluster between $99 and $199. A handful of highly specialized panels such as mycotoxin testing can exceed that ceiling.
These prices are what Function charges members after the annual fee is paid. They are not insurance-submitted rates. The base membership buys you access to roughly 100 standard biomarkers drawn once per year; every additional test is an a la carte line item. See the full function health cost breakdown for how the membership itself is structured.
A Realistic Price Table for the Most-Requested Function Health Add-Ons
The following ranges reflect what members have reported paying in 2025 and early 2026. Function does not publish a complete public price list, so exact figures shift and a logged-in member portal is the only authoritative source at any given moment.
| Add-On Category | Example Tests | Typical Price Range |
|---|---|---|
| Single micronutrient | Vitamin D, B12, folate | $9 to $25 |
| Thyroid depth | TPO antibodies, reverse T3, TgAb | $29 to $59 |
| Advanced lipids | ApoB, Lp(a), LDL particle size | $39 to $79 |
| Hormones (male) | Free testosterone, SHBG, estradiol, LH, FSH | $49 to $89 |
| Hormones (female, cycle-timed) | Progesterone, estradiol, LH surge panels | $49 to $99 |
| DUTCH hormone metabolites | Full DUTCH Complete or DUTCH Plus urine test | $149 to $199 |
| Heavy metals | Mercury, lead, arsenic, cadmium (urine or blood) | $79 to $149 |
| Gut / microbiome | GI-MAP, comprehensive stool, SIBO breath | $99 to $189 |
| Inflammation and immune | hs-CRP, IL-6, complement, ANA | $29 to $69 |
| Metabolomics / organic acids | OAT urine panel | $99 to $159 |
| Mycotoxins / mold | Great Plains MycoTOX urine | $149 to $229 |
The insider thing most people do not realize: Function Health sources many of its specialty panels from third-party lab kits (DUTCH, Doctor’s Data, Vibrant America, Genova) and acts as a coordinator. The lab doing the processing sets much of the cost floor. That is why the DUTCH panel through Function costs more than the serum hormones Quest or Labcorp run.
How Much Do People Actually Spend When They Add Tests?
The average Function Health member who adds even two specialty panels ends up spending $600 to $750 for the year. Here is how three realistic member profiles stack up:
Profile 1: The Cardiovascular-Focused Member
Base membership: $499. Adds: ApoB ($49), Lp(a) ($59), advanced thyroid panel ($49). Total: approximately $656. These three panels are among the most clinically valuable additions and represent the minimum most preventive-cardiology-minded members end up buying.
Profile 2: The Hormone-Optimization Member
Base membership: $499. Adds: free testosterone and SHBG ($69), DUTCH Complete ($179), estradiol and progesterone for cycle mapping ($79). Total: approximately $826. This is the classic pattern for women in perimenopause or men who want more than a total testosterone number.
Profile 3: The Comprehensive Baseline Member
Base membership: $499. Adds: heavy metals urine ($119), gut microbiome stool panel ($149), organic acids ($129). Total: approximately $896. This is the “I want to rule out root causes” crowd. By this point the member has paid nearly $900 for one year of lab access.
The spend creep is not a coincidence. Function’s business model relies on it. The base panel is generous, but the tests that drive clinical decisions for the health-optimization audience, specifically DUTCH, heavy metals, gut panels, and Lp(a), are all extras. That is worth knowing before you commit.
Does Insurance or an HSA Cover Function Health Add-On Tests?
Function Health does not bill insurance directly for any of its panels, including the add-ons. However, many add-on tests are eligible for HSA and FSA reimbursement because they are legitimate medical diagnostic tests. The DUTCH hormone panel, heavy metal testing, and standard blood panels typically qualify. Specialty panels like mycotoxin testing or comprehensive stool analysis may be harder to get reimbursed, depending on your plan administrator’s interpretation of “medical necessity.” Your best move is to request an itemized receipt from Function and check with your HSA custodian. For a deeper look at coverage options, see does insurance cover function health.
How Do Function Health Add-On Costs Compare to Buying Tests Directly?
This is where it gets interesting. Some Function add-ons are competitively priced versus ordering the same test through a direct-to-consumer lab like Ulta Lab Tests, Walk-In Lab, or Request A Test. Others are not.
| Test | Function Health Price (est.) | Direct DTC Lab Price (est.) | Verdict |
|---|---|---|---|
| ApoB | $49 to $69 | $29 to $59 | Comparable |
| Lp(a) | $49 to $79 | $39 to $69 | Comparable |
| DUTCH Complete | $149 to $199 | $299 to $399 direct from DUTCH | Function cheaper |
| Heavy metals urine | $79 to $149 | $99 to $199 | Comparable |
| GI-MAP stool | $99 to $189 | $299 to $399 direct from Diagnostic Solutions | Function cheaper |
For the specialty kit-based panels (DUTCH, GI-MAP), Function’s negotiated pricing is genuinely a discount versus going direct to the lab. For standard blood panels run at Quest or Labcorp, the DTC market is more competitive. The value of Function’s add-ons is highest when you are picking specialty tests that would otherwise cost you $300 or more to order independently.
That said, if your goal is comprehensive standard blood work, the add-on model still puts you behind a flat-fee service. Read the function health review for a full accounting of where the platform adds and loses value.
The simplest way to actually get this done
Superpower is a full-body lab membership that runs 100+ biomarkers, has each result reviewed by a doctor, and tracks your numbers year over year (about $199/year). It is what we point readers to when they would rather get one clean, complete draw than chase single tests one at a time. Here is superpower blood test reviewed in full.
Which Function Health Add-On Tests Are Actually Worth Buying?
Not every add-on deserves your money. Here is an honest triage based on clinical utility versus cost.
High clinical value, often worth it
- ApoB and Lp(a): These two markers are missing from Function’s standard cardiovascular panel and from most annual physicals. ApoB predicts cardiovascular risk better than LDL-C in most people. Lp(a) is genetically fixed; you only need it once, but once you know, it changes your risk calculus permanently. The combined cost of around $100 to $130 is reasonable.
- DUTCH Complete: If you have symptoms suggesting hormone imbalance and your doctor keeps telling you your numbers are “normal” on serum testing, the DUTCH gives you metabolite data serum tests miss entirely. At $149 to $199 through Function versus $300-plus direct, the discount is real.
- TPO antibodies and reverse T3: Standard TSH and free T4 are included in the base panel. If you have fatigue, weight issues, or cold intolerance and those come back normal, TPO antibodies catch Hashimoto’s and reverse T3 flags conversion problems. The $49 to $79 combined cost is low relative to the diagnostic yield.
Moderate value, situational
- Heavy metals: Worth running once, especially if you eat a lot of large fish (mercury), live in an older home (lead), or have occupational exposure. Not something you need annually unless you have ongoing exposure.
- Gut microbiome stool panels: GI-MAP and similar panels have genuine clinical use in chronic GI issues, autoimmune workup, or post-antibiotic assessment. Ordering one speculatively without symptoms is expensive and hard to interpret.
Low priority for most people
- Organic acids and mycotoxins: These have real clinical applications in functional medicine, but they are expensive, require specialist interpretation, and produce false positives that can send you down expensive rabbit holes. Unless a practitioner has a specific clinical reason to order them, hold off.
What Does Function Health’s Base Panel Include, Before Any Add-Ons?
Knowing what the $499 base already covers tells you what you are actually filling in with add-ons. The standard Function Health panel includes roughly 100 biomarkers across these categories: complete blood count with differential, comprehensive metabolic panel, lipid panel (total cholesterol, LDL, HDL, triglycerides), thyroid (TSH, free T3, free T4), basic hormone panel (total testosterone, DHEA-S, cortisol), fasting glucose and insulin, HbA1c, key nutrients (ferritin, vitamin D, B12, magnesium), inflammatory markers (hs-CRP, homocysteine), liver enzymes, kidney function, and urinalysis.
What is notably absent from the base: ApoB, Lp(a), LDL particle size, DUTCH hormone metabolites, heavy metals, gut panels, cycle-timed progesterone, free testosterone (often; varies), and any specialty third-party kit panels. Those gaps are exactly where the add-on menu lives. If your main concern is cardiovascular risk or hormone optimization, you will almost certainly be buying extras. Check the function health add on test prices page for the current catalog.
The Total Cost Calculation Most People Miss
Here is the math people do not run before signing up. Function Health’s base membership is $499 per year. The most common add-on stack for a health-conscious adult who wants meaningful data on cardiovascular risk, thyroid depth, and hormones runs another $150 to $350. That puts actual annual spending at $650 to $850 for the data most people want.
Superpower, by comparison, charges about $199 per year for 100-plus biomarkers with physician review included, covers ApoB and other advanced cardiovascular markers in the base panel, and does not charge per-test extras for the standard comprehensive draw. The price difference for a comparable data set is $450 to $650 per year. That is not a knock on Function Health’s product quality, which is genuinely good. It is a structural observation about how the two pricing models work. If you want the specific specialty panels Function add-ons offer (DUTCH, heavy metals, GI-MAP), Function may still be the right choice. If you want a broad comprehensive baseline at the lowest annual cost, the math tilts away from Function once you factor in add-ons. See how much does superpower cost for the direct comparison.
How to Order Add-On Tests at Function Health
The process is straightforward. Log into your Function Health member portal, navigate to the “Tests” or “Add-Ons” section, and browse by category. Most add-ons can be ordered between your annual draws at any time. Some at-home kit panels (DUTCH, GI-MAP) are shipped to you directly; blood-draw add-ons are scheduled at a Quest or Labcorp patient service center the same way your base draw is handled.
One practical note: if you are adding a blood-draw panel, try to bundle it with your scheduled annual draw to avoid a second trip. Quest and Labcorp phlebotomists can pull everything in a single session as long as your Function order is placed before you arrive. Talk to a clinician about your results, particularly for specialty panels like heavy metals or DUTCH, where interpretation requires clinical context.
FAQ
How much are add-on tests at Function Health on average?
The median add-on test at Function Health costs approximately $49 to $99. Simple single-marker panels start around $9, while premium specialty panels like DUTCH hormone metabolites or mycotoxin testing can reach $150 to $229. Most members who purchase one or two targeted add-ons spend an additional $100 to $250 on top of the base membership in a given year.
How much are Function Health add-ons for hormones specifically?
Standard serum hormone add-ons at Function Health typically run $49 to $99, covering markers like free testosterone, SHBG, estradiol, LH, FSH, and progesterone. The DUTCH Complete urine panel, which measures hormone metabolites rather than serum levels, is the most expensive hormone add-on at approximately $149 to $199. Cycle-timed draws for female hormones may involve multiple add-on fees if timed samples are ordered at different cycle phases.
How much do Function Health add-on tests cost compared to ordering through a DTC lab?
For specialty kit-based panels like DUTCH and GI-MAP, Function Health is often $100 to $200 cheaper than ordering directly from the originating lab. For standard blood panels run at Quest or Labcorp, DTC services like Ulta Lab Tests or Walk-In Lab are frequently price-competitive and sometimes cheaper. The comparison shifts in Function’s favor primarily for the third-party specialty kit panels.
Can I use my HSA or FSA for Function Health add-on tests?
Yes, most Function Health add-on tests qualify as medical diagnostic expenses eligible for HSA and FSA reimbursement. Standard blood panels, thyroid panels, hormone tests, and heavy metal panels typically qualify. Specialty wellness panels in gray-area categories like mycotoxins may require documentation of medical necessity depending on your plan. Request itemized receipts from Function and confirm with your HSA administrator before assuming reimbursement.
Does Function Health charge extra for repeat tests within the same year?
Yes. The $499 annual base membership covers one comprehensive draw per year. If you want to retest a specific marker mid-year, such as checking a vitamin D level after supplementing or repeating a hormone panel after a protocol change, each retest is charged at the add-on price for that panel. Frequent retesting can add up quickly, and this is one of the less-advertised cost factors of the membership model.
What is the most expensive Function Health add-on test?
The highest-priced items in the Function add-on catalog as of 2026 are typically mycotoxin urine panels and comprehensive microbiome stool tests, which can run $149 to $229 or higher. Full DUTCH Plus and some advanced metabolomics panels fall in the $149 to $199 range. Most members never order these; they are relevant for specific clinical scenarios, not routine baseline monitoring.
Is the total cost of Function Health plus add-ons worth it?
It depends on which add-ons you actually need. If you want DUTCH hormone testing or a GI-MAP stool analysis, Function’s negotiated pricing is a genuine value versus ordering those panels direct. If your goal is comprehensive annual blood work with cardiovascular depth (ApoB, Lp(a.), inflammation, metabolic markers), you will spend $650 to $850 with add-ons at Function compared to roughly $199 for a comparable-depth all-inclusive service. Evaluate based on the specific tests you need, not the base sticker price.
How do I know which Function Health add-ons I need before ordering?
Review your base panel results first when they come in. Function’s physician team reviews results and can flag gaps in the data relevant to your health goals. If you have specific symptoms (fatigue, hormone concerns, GI problems, cardiovascular risk factors), that context should drive which add-ons you order. Ordering a broad suite of specialty panels speculatively without clinical direction is expensive and can generate confusing data that creates more anxiety than insight.
