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System Labs vs RNK Health

Compare pricing, features, and medications to find the best GLP-1 provider for your weight loss journey

System Labs vs RNK Health: Overview

Choosing between System Labs and RNK Health for GLP-1 weight loss medication? Both are popular providers, but they differ in pricing, medication options, and service features.

System Labs offers both semaglutide and tirzepatide at $149/month with a rating of 6.5/10. RNK Health also provides both semaglutide and tirzepatide at $197/month with a 7.7/10 rating.

With only a $48/month price difference, your choice will likely come down to features, support quality, and medication options.

Our recommended brand

After reviewing all 148 providers on this platform, we've identified CoreAge Rx as offering the most transparent pricing model. At just $99/month — the same price every month, every dose — there are no surprise charges or hidden fees. Combined with exceptional service quality, personalized support, and access to both semaglutide and tirzepatide, it represents the best value without compromising on care.

Visit CoreAge Rx →Read full review

At a glance

Price Difference

$48/mo

Rating Difference

1.2

Winner

RNK Health

Best For

Quality

System Labs

View full System Labs review →

Rating

6.5/10

Monthly Price

$149Cheaper

Medications

NAD+sermorelinglutathioneMIC + B12GHK-Cu

Pros

✓Prices are published openly for every product, with the renewal rate shown alongside the introductory one: NAD+ $89 first month then $149, sermorelin $109 then $219, glutathione $79 then $149, oral sermorelin $79 then $159, MIC + B12 $89/mo and GHK-Cu cream $109/mo (checked July 28, 2026)
✓Three delivery formats for NAD+ - injection, nasal spray and liposomal liquid - so needle-free options exist
✓Products are described as American made and third-party tested
✓The intake is short and a licensed provider reviews it before anything ships, with free 2-day shipping
✓No insurance required and no membership fee stacked on top of the product price

Cons

✗This is not a GLP-1 weight loss service. System Labs sells no semaglutide, no tirzepatide and no GLP-1 of any kind - the words do not appear anywhere on its site. If you are shopping for weight loss medication, this provider cannot supply it
✗We could not find any statement that the compounded peptides are not FDA-approved. That disclosure is standard across this category and its absence is the single biggest gap on the site
✗There is no refund or cancellation policy published at all - only a privacy policy and terms page
✗No independent review signal exists: no Trustpilot profile, no BBB file, and no rating displayed on site
✗Introductory pricing roughly doubles at renewal on most products, and the renewal price is the one you will pay for the rest of the course
✗Sermorelin, GHK-Cu and high-dose NAD+ have limited published human trial evidence for the benefits implied - 'perform 10 years younger' style claims are not supported by the kind of trials that back GLP-1 medications
✗No published phone number, support hours or physical address
✗The 'up to 1600mg' NAD+ potency claim is presented as an advantage without any evidence that higher doses produce better outcomes

Choose System Labs

RNK Health

View full RNK Health review →

Rating

7.7/10Better

Monthly Price

$197

Medications

semaglutidetirzepatide

Pros

✓Per-product prices are listed openly on the homepage rather than hidden behind a quiz: semaglutide from $197/mo, tirzepatide from $297/mo, NAD+ from $129/mo, sermorelin from $129/mo, B12-MIC from $97/mo (checked July 27, 2026)
✓Cancel or pause at any time with no long-term commitment, managed from your own account rather than by emailing support
✓Publishes both the dispensing pharmacy's location and the medical provider's address, which is unusually specific for this category
✓1-on-1 calls with US doctors are part of the programme, not an upsell
✓A satisfaction guarantee is advertised alongside progress tracking and built-in guidance
✓Trustpilot rating of 4.1 across 454 reviews gives at least a moderate independent signal
✓Wide catalogue if you want more than weight care - NAD+ in three delivery formats, sermorelin, enclomiphene and an 80-biomarker DNA panel

Cons

✗The affiliate link for this offer lands on RNK's NAD+ funnel, not its GLP-1 pages, so anyone following the link for weight loss arrives at a longevity product and has to navigate away
✗'Full pricing details are shown during checkout' - so the advertised 'from' prices are a floor, and what you actually pay is not visible until you are committing
✗We could not find an explicit 'not FDA-approved' disclosure for the compounded medications. Nearly every competitor states this plainly; RNK describes its products only as 'USA Compounded: Lab-tested, high-purity'
✗GLP-1 pricing is at the higher end - $197 for semaglutide and $297 for tirzepatide, where several rivals advertise under $150
✗The NAD+ landing page promises you will 'LOOK, FEEL & PERFORM 10 YEARS YOUNGER' with 'the most powerful NAD+ protocol on the market' - claims with no cited evidence
✗The 'satisfaction guarantee' and 'Risk FREE' language is used without published terms defining what either actually entitles you to
✗No BBB profile or complaint history to check
✗As with all compounded GLP-1s, no efficacy data specific to RNK's own patients is published

Choose RNK Health

Feature-by-feature comparison

Feature	System Labs	RNK Health
Monthly Price	$149	$197
Rating	6.5/10	7.7/10
Medications	NAD+, sermorelin, glutathione, MIC + B12, GHK-Cu	semaglutide, tirzepatide
Insurance Accepted	No	No
Support Hours	Medical team availability advertised; hours not published	Not published
Live Chat	Available	No
Free Shipping	Yes	Yes
Shipping Speed	Free 2-day shipping	Not published
Mobile App	No	No
Dedicated Coach	Not included	Not included
Follow-up Frequency	Ongoing clinician support advertised; frequency not published	1-on-1 calls with US doctors plus progress tracking
Money-back Guarantee	None published	A satisfaction guarantee is advertised, but we found no published terms defining it
Cancellation Policy	Not published	Cancel or pause any time from your account, with no long-term commitment

Which should you choose?

Choose System Labs if you:

→Want to save $48/month with a more affordable option
→Want more medication options to choose from
→Value: prices are published openly for every product, with the renewal rate shown alongside the introductory one: nad+ $89 first month then $149, sermorelin $109 then $219, glutathione $79 then $149, oral sermorelin $79 then $159, mic + b12 $89/mo and ghk-cu cream $109/mo (checked july 28, 2026)

Get started with System Labs

Choose RNK Health if you:

→Prefer a higher-rated service (7.7/10 vs 6.5/10)
→Value: per-product prices are listed openly on the homepage rather than hidden behind a quiz: semaglutide from $197/mo, tirzepatide from $297/mo, nad+ from $129/mo, sermorelin from $129/mo, b12-mic from $97/mo (checked july 27, 2026)

Get started with RNK Health

Website previews

System Labs

System Labs website

RNK Health

RNK Health website

Our recommendation

RNK Health comes out ahead with a higher rating of 7.7/10. It also provides multiple medication options including both semaglutide and tirzepatide.

Get started with RNK Health

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