Research Labs vs Likeness Rx
Compare pricing, features, and medications to find the best GLP-1 provider for your weight loss journey
Research Labs vs Likeness Rx: Overview
Choosing between Research Labs and Likeness Rx 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. Likeness Rx also provides both semaglutide and tirzepatide at $79/month with a 0/10 rating.
With only a $19/month price difference, your choice will likely come down to features, support quality, and medication options.
Our recommended brand
After reviewing all 149 providers on this platform, we've identified CoreAge Rx as offering the most transparent pricing model. At just $79/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.
At a glance
Price Difference
$19/mo
Rating Difference
5.5
Winner
Research Labs
Best For
Budget
Research Labs
View full Research Labs review →Rating
5.5/10Better
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
Likeness Rx
View full Likeness Rx review →Rating
0/10
Monthly Price
$79
Medications
semaglutidetirzepatide
Pros
- ✓Semaglutide from $79/month; tirzepatide from $129/month
- ✓Online provider review; prescription required
- ✓GLP-1 and prescription skincare options
Cons
- ✗These are provider-published terms checked October 4, 2026. Prescription approval is conditional. Compounded medications are not FDA-approved; we have not tested the treatment, pharmacy fulfillment or patient outcomes.
- ✗The lowest monthly equivalents accompany 12-month subscriptions: $948 for semaglutide or $1,548 for tirzepatide. One-month plans are $139 and $199. The page says the selected term renews automatically; check the amount due and cancellation date.
Feature-by-feature comparison
| Feature | Research Labs | Likeness Rx |
|---|---|---|
| Monthly Price | $60 | $79 |
| Rating | 5.5/10 | 0/10 |
| Medications | GLP-1 peptides, BPC-157, TB-500, NAD+ | semaglutide, tirzepatide |
| Insurance Accepted | No | No |
| Support Hours | Not published | Confirm directly with the provider |
| Live Chat | No | No |
| Free Shipping | Yes | Yes |
| Shipping Speed | Nationwide US shipping, free on orders over $150 | The site advertises shipment within two business days after approval; not independently tested. |
| Mobile App | No | No |
| Dedicated Coach | Not included | Not included |
| Follow-up Frequency | None - there is no clinical relationship | Confirm directly with the provider |
| Money-back Guarantee | See the site's refund policy; no clinical guarantee applies | The site advertises a refund if a prescription is not approved; check the selected order policy. |
| Cancellation Policy | One-off purchases rather than a subscription | The lowest monthly equivalents accompany 12-month subscriptions: $948 for semaglutide or $1,548 for tirzepatide. One-month plans are $139 and $199. The page says the selected term renews automatically; check the amount due and cancellation date. |
Which should you choose?
Choose Research Labs if you:
- →Want to save $19/month with a more affordable option
- →Prefer a higher-rated service (5.5/10 vs 0/10)
- →Want more medication options to choose from
- →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
Choose Likeness Rx if you:
- →Value: semaglutide from $79/month; tirzepatide from $129/month
Website previews
Research Labs
Likeness Rx
Our recommendation
Research Labs comes out ahead with a higher rating of 5.5/10. It also provides multiple medication options including both semaglutide and tirzepatide.
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