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Research Labs vs MEDVi Quad

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

Research Labs vs MEDVi Quad: Overview

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

Research Labs offers both semaglutide and tirzepatide at $60/month with a rating of 5.5/10. MEDVi Quad also provides both semaglutide and tirzepatide at $114/month with a 6.5/10 rating.

The price difference of $54/month is significant - Research Labs is the more budget-friendly option, while MEDVi Quad positions itself as a premium service.

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

$54/mo

Rating Difference

1.0

Winner

MEDVi Quad

Best For

Quality

Research Labs

View full Research Labs review →

Rating

5.5/10

Monthly Price

$60Cheaper

Medications

GLP-1 peptidesBPC-157TB-500NAD+

Pros

✓The quality documentation is genuinely thorough for this category: HPLC and mass spectrometry on every lot, a signed certificate of purity shipped with every order, and a public lab-report library you can read before buying
✓Endotoxin testing (LAL assay) and microbial screening to USP standards on every batch before release
✓Full batch traceability - each vial traced to its production lot, raw materials and test results
✓States an average of 99.3% HPLC purity across all batches and publishes the underlying numbers rather than only the claim
✓Partner labs described as GMP-aligned, with documented SOPs and controlled environments
✓Pricing is straightforward and published: individual peptides run roughly $59.99 to $159.99, with free shipping over $150 (checked July 28, 2026)
✓The research-use-only status is disclosed up front behind an acknowledgement gate, not buried in a footer after checkout
✓A published phone number and a catalogue organised into peptides, blends, sprays and capsules, with a reference database

Cons

✗This is not a treatment and cannot lawfully be sold as one. Everything here is labelled for research use only and explicitly not for human consumption. If you are reading this site to find help with weight loss, this is not an option - it is laboratory material
✗There is no clinician at any point. Nobody takes a history, nobody checks your contraindications, nobody sets a dose and nobody monitors you. The safety net that every licensed provider on this site provides simply does not exist here
✗A certificate of analysis tells you what is in the vial. It tells you nothing about whether the contents are safe for you, what dose is appropriate, or how it interacts with your medications
✗Products arrive as lyophilised powder requiring reconstitution, and bacteriostatic water, syringes and other supplies are not included - so self-administration would also mean improvising sterile technique
✗Peptides such as BPC-157 and TB-500 appear on the FDA's list of substances that raise significant safety concerns for compounding, and have little or no published human trial evidence
✗There is no prescription, no pharmacy oversight and no adverse-event reporting pathway. If something goes wrong there is no clinical record and no provider to call
✗No Trustpilot or BBB record exists, so there is no independent consumer feedback of any kind
✗Our rating reflects suitability for someone seeking treatment, which is what this site compares. As a laboratory supplier the documentation is strong; as a route to a GLP-1 or peptide for your own health it is the wrong door, and a licensed provider is the right one

Choose Research Labs

MEDVi Quad

View full MEDVi Quad review →

Rating

6.5/10Better

Monthly Price

$114

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	Research Labs	MEDVi Quad
Monthly Price	$60	$114
Rating	5.5/10	6.5/10
Medications	GLP-1 peptides, BPC-157, TB-500, NAD+	sildenafil, tadalafil, bremelanotide (PT-141), L-citrulline
Insurance Accepted	No	No
Support Hours	Not published	24/7 medical support advertised
Live Chat	No	No
Free Shipping	Yes	Yes
Shipping Speed	Nationwide US shipping, free on orders over $150	Free rush shipping included in the monthly price
Mobile App	No	No
Dedicated Coach	Not included	Not included
Follow-up Frequency	None - there is no clinical relationship	24/7 medical support advertised; follow-up cadence not published
Money-back Guarantee	See the site's refund policy; no clinical guarantee applies	No charge if you do not qualify; no refund policy published for dispensed medication
Cancellation Policy	One-off purchases rather than a subscription	Cancel anytime

Which should you choose?

Choose Research Labs if you:

→Want to save $54/month with a more affordable option
→Value: the quality documentation is genuinely thorough for this category: hplc and mass spectrometry on every lot, a signed certificate of purity shipped with every order, and a public lab-report library you can read before buying

Get started with Research Labs

Choose MEDVi Quad if you:

→Prefer a higher-rated service (6.5/10 vs 5.5/10)
→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

Research Labs

Research Labs website

MEDVi Quad

MEDVi Quad website

Our recommendation

MEDVi Quad comes out ahead with a higher rating of 6.5/10. It also provides multiple medication options including both semaglutide and tirzepatide.

Get started with MEDVi Quad

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