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Research Labs vs Lttl

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

Research Labs vs Lttl: Overview

Choosing between Research Labs and Lttl 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. Lttl also provides both semaglutide and tirzepatide at $129/month with a 7.9/10 rating.

The price difference of $69/month is significant - Research Labs is the more budget-friendly option, while Lttl 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

$69/mo

Rating Difference

2.4

Winner

Lttl

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

Lttl

View full Lttl review →

Rating

7.9/10Better

Monthly Price

$129

Medications

semaglutidetirzepatidesermorelinNAD+glutathione

Pros

✓The pricing page shows the complete ladder rather than a teaser, and says so explicitly: 'Every price. Every commitment length. No hidden fees, no starting at, no surprises'
✓Compounded tirzepatide runs $279/mo on rolling monthly billing, $249/mo over 3 months, $229/mo over 6 and $199/mo over 12, against a stated full price of $339/mo (checked July 28, 2026)
✓Weight loss plans start at $129/mo, longevity at $79/mo and microdose at $109/mo
✓'Same price, every dose' - your rate is locked from day one and does not rise as you titrate up. That is a genuine differentiator; several competitors we cover more than double the price between the starting and top dose
✓The compounding disclosure correctly separates 'FDA-registered facility' from 'FDA-approved drug', and states plainly that the medication has not been evaluated by the FDA for safety, efficacy or quality
✓A published phone number, a real California street address, an email address and a help centre - the full set, which is unusual in this category
✓No contracts, cancel anytime, free shipping, and medication prescribed and shipped within 48 hours
✓The assessment is free, takes about two minutes and requires no card up front
✓Longevity and peptide options (sermorelin, NAD+, glutathione, MIC B12) sit alongside the GLP-1 line at lower price points

Cons

✗The advertised '4.9 from 12,000+ Members' does not match the Trustpilot profile, which showed 4.3 from 8 reviews. Displaying that figure beside a Trustpilot badge implies a source it does not have
✗'Average Lttl members lose 32 lbs in first 6 months' and 'Top responders lose 55+ lbs in 12 months' are given without sample size, methodology or whether the weights were self-reported
✗'#1 RATED FOR RESULTS' and '62% of Lttl members choose this plan' carry no source at all
✗The 'Join 500,000+ others' figure is the company's own with no independent corroboration
✗The best rate requires committing to 12 months billed as $2,388 annually, and prescription medication cannot be returned or refunded once it ships - so that is a large non-recoverable commitment
✗Consultation fees are 'generally non-refundable once a provider has reviewed' your case, meaning you can pay and still be declined
✗Microdose plans are sold as a distinct tier at $109/mo, but microdosing is not an evidence-based protocol - the trials behind these drugs used full therapeutic doses
✗Compounded semaglutide and tirzepatide are not FDA-approved, and the weight-loss figures associated with these molecules come from trials of the branded products
✗GLP-1 medications are not suitable for anyone with a personal or family history of medullary thyroid carcinoma or MEN 2, or during pregnancy. Pancreatitis and gallbladder disease are recognised risks

Feature-by-feature comparison

Feature	Research Labs	Lttl
Monthly Price	$60	$129
Rating	5.5/10	7.9/10
Medications	GLP-1 peptides, BPC-157, TB-500, NAD+	semaglutide, tirzepatide, sermorelin, NAD+, glutathione
Insurance Accepted	No	No
Support Hours	Not published	Unlimited 24/7 support advertised
Live Chat	No	No
Free Shipping	Yes	Yes
Shipping Speed	Nationwide US shipping, free on orders over $150	Prescribed and shipped within 48 hours, free shipping
Mobile App	No	No
Dedicated Coach	Not included	Not included
Follow-up Frequency	None - there is no clinical relationship	Unlimited 24/7 care team support advertised
Money-back Guarantee	See the site's refund policy; no clinical guarantee applies	None. Prescription medication is non-returnable once shipped; damaged or incorrect orders replaced if reported within 7 days
Cancellation Policy	One-off purchases rather than a subscription	No contracts, cancel anytime; longer commitments are billed upfront and medication already shipped is non-refundable

Which should you choose?

Choose Research Labs if you:

→Want to save $69/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 Lttl if you:

→Prefer a higher-rated service (7.9/10 vs 5.5/10)
→Want more medication options to choose from
→Value: the pricing page shows the complete ladder rather than a teaser, and says so explicitly: 'every price. every commitment length. no hidden fees, no starting at, no surprises'

Get started with Lttl

Website previews

Research Labs

Research Labs website

Lttl

Lttl website

Our recommendation

Lttl comes out ahead with a higher rating of 7.9/10. It also provides multiple medication options including both semaglutide and tirzepatide.

Get started with Lttl

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