System Labs vs MEDVi Quad

Item: System Labs
Rating: 3.3
Author: GLP-1 Planet Editorial Team

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

System Labs vs MEDVi Quad: Overview

Choosing between System Labs and MEDVi Quad 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. MEDVi Quad also provides both semaglutide and tirzepatide at $114/month with a 6.5/10 rating.

With only a $35/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

$35/mo

Rating Difference

0.0

Winner

MEDVi Quad

Best For

Budget

System Labs

View full System Labs review →

Rating

6.5/10

Monthly Price

$149

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

MEDVi Quad

View full MEDVi Quad review →

Rating

6.5/10

Monthly Price

$114Cheaper

Medications

sildenafiltadalafilbremelanotide (PT-141)L-citrulline

Pros

✓$114/month, reduced from a stated $179, and the price is all-in: doctor consultation, free rush shipping and 24/7 medical support are included with no separate consultation fee (checked July 28, 2026)
✓Cancel anytime, and the page states you are not charged if you do not qualify
✓All four active ingredients are named openly - PT-141 (bremelanotide), L-citrulline, sildenafil and tadalafil - rather than hidden behind a proprietary blend name
✓Sublingual delivery is a real advantage over tablets: it bypasses first-pass metabolism, so onset is faster and a heavy meal does not blunt absorption the way it can with oral sildenafil
✓Backed by a substantial independent review record - roughly 14,000 Trustpilot reviews at 4.4, with 99% of negative reviews answered
✓A published phone number, email address and physical address, which many competitors in this category omit entirely

Cons

✗'Peak rigidity guaranteed' appears directly in the product copy. No prescription medication can guarantee an outcome, and this is the most explicit outcome promise we have seen across every provider reviewed on this site
✗The formula stacks two PDE5 inhibitors - sildenafil and tadalafil - and then adds L-citrulline, a nitric oxide precursor. All three act on the same nitric oxide and cGMP pathway, so the blood-pressure-lowering effect compounds three ways rather than one
✗PT-141 adds a fourth agent that independently causes low blood pressure, nausea and flushing. Four actives, four routes to hypotension, and no discussion anywhere on the page of the combined risk
✗Bremelanotide's only FDA approval is as Vyleesi, an autoinjector for premenopausal women with hypoactive sexual desire disorder. Prescribing it to men in a compounded sublingual liquid is off-label and a different route of administration
✗The word FDA does not appear on the page at all. The product is compounded, and the page never states the consequence - that compounded preparations are not reviewed or approved by the FDA for safety, efficacy or quality
✗'The world's first 4-in-1 formula' and 'hospital-grade power' are unverifiable marketing superlatives attached to a prescription product
✗The advertised Trustpilot score covers MEDVi's business as a whole rather than this specific product
✗The published address is a suite at a Delaware registered-agent building, not a clinical facility
✗Anyone taking nitrates or riociguat must not use this product. The PT-141 component also interacts with 5-HT3 anti-emetics such as ondansetron, and stacking two PDE5 inhibitors makes the nitrate contraindication more dangerous, not less

Choose MEDVi Quad

Feature-by-feature comparison

Feature	System Labs	MEDVi Quad
Monthly Price	$149	$114
Rating	6.5/10	6.5/10
Medications	NAD+, sermorelin, glutathione, MIC + B12, GHK-Cu	sildenafil, tadalafil, bremelanotide (PT-141), L-citrulline
Insurance Accepted	No	No
Support Hours	Medical team availability advertised; hours not published	24/7 medical support advertised
Live Chat	Available	No
Free Shipping	Yes	Yes
Shipping Speed	Free 2-day shipping	Free rush shipping included in the monthly price
Mobile App	No	No
Dedicated Coach	Not included	Not included
Follow-up Frequency	Ongoing clinician support advertised; frequency not published	24/7 medical support advertised; follow-up cadence not published
Money-back Guarantee	None published	No charge if you do not qualify; no refund policy published for dispensed medication
Cancellation Policy	Not published	Cancel anytime

Which should you choose?

Choose System Labs if you:

→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 MEDVi Quad if you:

→Want to save $35/month with a more affordable option
→Value: $114/month, reduced from a stated $179, and the price is all-in: doctor consultation, free rush shipping and 24/7 medical support are included with no separate consultation fee (checked july 28, 2026)

Get started with MEDVi Quad

Website previews

System Labs

MEDVi Quad

Our recommendation

MEDVi Quad offers better value at $114/month while maintaining strong ratings. It also provides multiple medication options including both semaglutide and tirzepatide.

Get started with MEDVi Quad

Related comparisons

System Labs vs MEDVi Quad

System Labs vs MEDVi Quad: Overview

Our recommended brand

At a glance

System Labs

Pros

Cons

MEDVi Quad

Pros

Cons

Feature-by-feature comparison

Which should you choose?

Choose System Labs if you:

Choose MEDVi Quad if you:

Website previews

System Labs

MEDVi Quad

Our recommendation

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