GLP Watchdog

Oak vs SkinnyRx

SkinnyRx has an open FDA warning letter dated February 20, 2026. Oak has none. On brand-name semaglutide pill, Oak costs $1,676 less a year at standing rates: $100 a month (billed every 4 weeks) against $248 a month at SkinnyRx. It is one of three products the two sell at comparable terms.

To see where both sit among the other sellers, read our best weight-loss injection providers board.

By Ruth Calder · Enforcement Editor
Editorially reviewed. Not medical advice · How we verify contentLast reviewed

The record

Oak / SkinnyRx

Oak logo

Oak

7.2/10

SkinnyRx logo

SkinnyRx

6.3/10

FDA warning letters
None on record
Pharmacy
None named in our record
None named in our record
Lowest standing price
$100/moBrand-name semaglutide pill, billed every 4 weeks
$248/moBrand-name semaglutide pill
States
48 states
47 states
Checked
Prices captured Record checked October 2026
Prices captured Record checked October 2026
Visit Oak
Visit SkinnyRx

Both Oak and SkinnyRx are affiliate partners: we are paid if you sign up through our links. Neither is featured. Scores are computed the same way for both (Oak 7.2, SkinnyRx 6.3). How we are paid

What the record shows

  1. 01

    SkinnyRx has an open FDA warning letter dated February 20, 2026. Oak has none.

  2. 02

    Neither names the pharmacy that compounds its medication.

  3. 03

    On brand-name semaglutide pill, Oak costs $1,676 less a year at standing rates: $100 a month (billed every 4 weeks) against $248 a month at SkinnyRx. It is one of three products the two sell at comparable terms.

  4. 04

    Only SkinnyRx lists a price for compounded oral tirzepatide and Foundayo (orforglipron) pill.

  5. 05

    Oak covers two states SkinnyRx does not and SkinnyRx covers one state Oak does not.

Prices and terms, product by product

A price is set against the other side only for the same product, and only when both are standing monthly or 4-week rates. Those pairs are compared by yearly cost.

Oak

SkinnyRx

Compounded semaglutide injection

$250/mo

$3,000 a year

$99/mo

first month only; not compared

Compounded tirzepatide injection

$300/mo

$3,600 a year

$99/mo

first month only; not compared

Brand-name semaglutide pen

$1,250/moLower

$16,250 a year, 13 charges

$1,400/mo

$16,800 a year

Brand-name tirzepatide pen

$1,200/moLower

$15,600 a year, 13 charges

$1,400/mo

$16,800 a year

Compounded oral semaglutide

$260/mo

$3,380 a year, 13 charges

$149/mo

first month only; not compared

Brand-name semaglutide pill

$100/moLower

$1,300 a year, 13 charges

$248/mo

$2,976 a year

Compounded oral tirzepatide
Not sold or not priced

$199/mo

first month only; not compared

Foundayo (orforglipron) pill
Not sold or not priced

$248/mo

$2,976 a year

Price includes
Medication, shipping, coaching
Medication, clinician visits, shipping
Cancel any time
Yes, stated
Yes, stated
Minimum term
None (3-, 6- and 12-month plans optional)
None stated; subscriptions auto-renew until canceled at least 5 days before the renewal date
Refunds
No refunds once a provider approves the order
Full refund before a provider completes the prescription review; no refunds for partially used subscription periods
Early-exit fee
Yes
Not stated

Read off each seller’s own pages. Oak: October 30, 2026. SkinnyRx: October 30, 2026. Every plan and dose we hold is on the full review.

The case for each

The case for Oak

7.2/10
  • No FDA warning letter on record
  • $550 a year less on brand-name semaglutide pen
  • $1,200 a year less on brand-name tirzepatide pen
  • Names no compounding pharmacy
Visit Oak

The case for SkinnyRx

6.3/10
  • Sells compounded oral tirzepatide and Foundayo (orforglipron) pill, which Oak does not price
  • Open FDA warning letter, February 20, 2026
  • Names no compounding pharmacy
Visit SkinnyRx

Scores

Oak 7.2 · SkinnyRx 6.3 out of 10. Six weighted parts.

Value25%

3.1A
vs
B
5.6

Effectiveness25%

10.0A
vs
B
10.0

User Experience15%

8.0A
vs
B
3.0

Trust & Safety15%

7.5A
vs
B
2.0

Accessibility10%

9.7A
vs
B
9.5

Support10%

6.0A
vs
B
7.0

The score is the same formula for every seller. Payment does not enter it. Method

Oak vs SkinnyRx: questions

SkinnyRx has an open FDA warning letter dated February 20, 2026. Oak has none. Letters are matched to a seller by company, domain and address, never by a similar name.
Neither names the pharmacy that compounds its medication.
Oak, by $550 a year at standing rates. Oak: $1,250 a month (billed every 4 weeks), about $16,250 a year. SkinnyRx: $1,400 a month, about $16,800 a year.
Oak states you can cancel at any time; refunds: no refunds once a provider approves the order. SkinnyRx states you can cancel at any time; refunds: full refund before a provider completes the prescription review; no refunds for partially used subscription periods.
Both Oak and SkinnyRx are affiliate partners: we are paid if you sign up through our links. Neither is featured. Scores are computed the same way for both (Oak 7.2, SkinnyRx 6.3).

Other sellers we are paid by

Affiliate partners outside this pair. Each has its own record and review, scored the same way.

Sellers closest to these two

Matched on molecule, form and price. Every pair we list · The register

Brand names on this page are registered marks. Novo Nordisk holds Wegovy®, Ozempic® and Rybelsus®; Eli Lilly holds Zepbound®, Mounjaro® and Foundayo®. Neither company has any tie to GLP Watchdog. Trademarks