PlexusDx vs Coby Health

Both sell tirzepatide. PlexusDx costs $189 a month and Coby Health costs $239, a difference of $50 a month or about $600 a year. The desk reads it as follows.

PlexusDx is pharmacy transparency and genetic testing. Coby Health is multi-month value with supplies included. They are not aimed at the same person, and the cheaper one is not automatically the right answer — though on this board it usually is.

Advert against bill. PlexusDx advertises $129 and bills $189; Coby Health advertises $179 and bills $239. Both gaps are the same size, so the advertised comparison happens to hold.

Side by side

Prices verified 2026-09-18. "True monthly cost" is what you are billed in month two, once any introductory rate has lapsed and any membership has renewed.

The split

They differ on 3 of the 7 things we track, and behave the same on the other 4. The differences are what the price gap is actually buying.

What each puts on the record: PlexusDx

• GLP-1 weight-loss programmes start at $129/month.
• Compounded semaglutide injection listed at $189/month with no membership fee and the same price at every dose.
• A $189/month microdose tier is offered for compounded semaglutide or tirzepatide.
• No membership or platform fee is charged alongside the medication.
• Publicly names six 503A pharmacy partners: Belmar, Strive, Epiq Scripts, Casa Pharma Rx, The Pharmacy Hub and Foothills.
• Clinical oversight via LionMD, with named physicians and NPI numbers published.
• Licensed providers in all 50 states; CLIA-certified labs for its testing line.

Where it wins: The most detailed pharmacy disclosure in this comparison — six named 503A partners. Watch for: The advertised "from $129" is the programme floor. Budget $189/month for the compounded injection tier.

What each puts on the record: Coby Health

• Compounded tirzepatide listed at $239/month on the monthly plan, down from $299.
• Multi-month plans bring compounded tirzepatide to about $179/month.
• An at-home injection kit with alcohol pads and syringes is included.
• Monthly plans can be cancelled at any time.
• States plainly on its own product pages that compounded medication is not FDA-reviewed or approved.

Where it wins: Injection supplies are included rather than something you source yourself. Watch for: The $179 figure is a multi-month rate. Month-to-month is $239.

In each one’s favour

PlexusDx.

• The most detailed pharmacy disclosure in this comparison — six named 503A partners.
• Names its prescribing physicians along with their NPI numbers.

Coby Health.

• Injection supplies are included rather than something you source yourself.
• Monthly plan is genuinely cancel-anytime.

How they score

PlexusDx scores higher overall at 4.4 out of 5. The weights are published on how we rate, and so is the note about which of these is our paid featured partner.

The desk’s call

• Pick PlexusDx if cost is the binding constraint. Over a year the gap is about $600, which is real money for the same class of medication.
• Pick Coby Health if what it does better matters to you — injection supplies are included rather than something you source yourself.
• If sourcing matters, note that PlexusDx publishes which pharmacy compounds its medication and Coby Health does not.

The verdict

On the board, PlexusDx at $189 a month is the more defensible choice on arithmetic alone. Coby Health earns its premium only if you will actually use what it does differently. Read the full reviews before deciding: PlexusDx and Coby Health.

How they sit against everyone else