How to get Function Health at a lower cost

Function Health's sticker price is $365 per year, down from the original $499, but still notably more expensive than newer competitors like Superpower ($199) and Empirical Health ($190). The good news is that there are a few reliable ways to bring the effective price down, and a few that show up periodically and are worth watching for.

I signed up for Function myself and have tracked its codes and card-linked offers since launch. Below is the full set of levers I'm aware of, ordered roughly by how much they save: discount codes, card-linked promos, HSA/FSA payment, the referral program, and cheaper alternatives that cover most of the same biomarkers.

1. Use a discount code at checkout

Function's standing discount codes are modest but consistent. The two most reliable are:

• HUBERMAN: $50 off the first year, bringing the price to $315. Andrew Huberman is on Function's advisory board, and this is the longest-running public code.
• EXCELLENCE25: $25 off the first year, bringing the price to $340. A backup if HUBERMAN ever stops working.

Function only allows one code per order, so pick whichever gives the bigger dollar savings. Codes apply to the first year only; renewals revert to $365. For the full set of currently-working codes (including partner promos with Sweetgreen and Erewhon), see the dedicated Function Health discount codes page.

2. Watch for card-linked offers (Chase Sapphire Reserve, expired)

The deepest discount Function has run wasn't a code at all. It was a Chase Offers card-linked promotion for Chase Sapphire Reserve cardholders that posted 50% cash back as a statement credit. That brought the effective price down to about $182.50, which is the only time Function has been directly competitive on price with Superpower or Empirical Health.

The Chase Sapphire Reserve promo expired on March 31, 2026, so it's no longer available. But it's worth knowing about for two reasons:

• Function has surfaced card-linked offers more than once, and they may rotate back. If you carry a Sapphire Reserve, check the Chase Offers section of your account periodically before signing up, since Function has shown up there before.
• The same pattern shows up on Amex Offers and Capital One Offers from time to time. Worth a quick scan across whatever cards you carry.

Full breakdown of the original offer on the Function × Chase Sapphire Reserve page.

3. Pay with HSA or FSA dollars

Function accepts HSA and FSA payments for the membership. The sticker price doesn't change, but paying with pre-tax dollars effectively reduces the cost by your marginal tax rate, usually 20–35% depending on your bracket. On a $365 membership, that's $70–$130 in real savings without doing anything fancy at checkout.

You can stack this with a discount code, since the HSA/FSA discount comes from how you pay rather than from a promo. HUBERMAN + HSA payment is the cheapest realistic stack right now.

4. Use the member referral program

Existing Function members can share a personal referral link that typically gives new users $25–$50 off the first year. The exact discount varies and the referrer usually gets a credit on their own account too. If you know a Function member, this is worth asking about. If not, HUBERMAN matches the high end of the referral discount.

Function Health alternatives with lower costs

If cost is the main thing driving the decision, it's worth asking whether a cheaper service covers most of the same biomarkers. Several alternatives have launched in the last few years at meaningfully lower price points:

• Empirical Health, $190/year. Includes most of the same biomarkers Function offers, plus personalized guidance on medications, nutrition, and exercise. The cheapest option in the comprehensive-panel category right now.
• Superpower, $199/year. Similar biomarker breadth to Function at roughly half the price. Newer company but gaining traction quickly. See the Function vs Superpower head-to-head for the detailed comparison.
• Vitals Vault, $99–$399 one-time. Pay-once model instead of a subscription. Three tiers (Essential $99, Advanced $199, Max $399) drawing from a 1,000+ test catalog at Quest. If you only want one round of testing rather than ongoing tracking, the Essential tier is the cheapest entry point in the category.
• Goodlabs, free with blood donation. Different model entirely: donate blood through a partner blood center and you get 100+ biomarkers covering heart, hormones, metabolic, inflammation, iron, kidney, liver, and nutrition, drawn at Quest or LabCorp. Only works if you're donor-eligible, but the price is hard to beat.
• Ask your PCP. Many of the individual biomarkers Function tests (lipid panel, CBC, CMP, HbA1c, TSH, even ApoB) are routinely covered by insurance when ordered by your primary care doctor with a qualifying diagnosis code. You usually won't get the full 100+ marker panel in a single visit, but if you have good insurance and just want the core markers, this can cost close to nothing.

The cheapest realistic path

If you've decided Function is the right service and you just want the lowest effective price right now:

• Apply HUBERMAN at checkout for $50 off ($315).
• Pay with an HSA or FSA card for another 20–35% in pre-tax savings (~$220–$250 effective).
• Check the Chase Offers tab on any Chase cards you carry before clicking pay, in case a Function offer has rotated back.

If cost is the deciding factor and you don't have strong loyalty to the Function brand, Superpower at $199 or Empirical Health at $190 will get you most of the way there for less, even without any discounts.