Vendors
Brands & Sources Directory
A curated 2026 list of research peptide vendors. Reputation tiers reflect synthesized community feedback, public COA practices, and shipping reliability — not endorsement.
Research chemicals only. Not for human use. For research and educational purposes only. Always do your own due diligence and consult qualified professionals.
Showing 32 of 32 vendors
Amino Asylum
United States · est. ~2020
Reputable
Strong selection of nootropic peptides
Public Discord/Telegram support
Pros
- +Wide catalog including hard-to-find peptides
- +Frequent third-party COAs published
- +Active community presence
Cons
- −Domestic shipping has had occasional payment friction
- −Some users report inconsistent vial fill volume
Testing: Publishes HPLC + MS COAs from third-party labs for most batches.
Shipping: US domestic only as of 2026. 2–5 business day fulfillment.
Payments: Cryptocurrency · Zelle · ACH · Cashapp
Limitless Life
United States · est. ~2019
Top tier
Frequently the highest-rated vendor in side-by-side community blind tests
Pros
- +Pharmacy-grade purity (>99 % HPLC) on most peptides
- +GMP-style packaging with tamper seals
- +Consistent batch-to-batch reports
Cons
- −Higher pricing tier
- −Account/membership required for full access
Testing: Independent third-party HPLC, MS, endotoxin and sterility on every batch; full COAs available on request.
Shipping: Cold-pack overnight US shipping; international restrictions vary.
Payments: Cryptocurrency · Wire transfer
Core Peptides
United States · est. ~2017
Reputable
Reliable workhorse vendor for common peptides like BPC-157, TB-500, CJC/Ipa
Pros
- +Long-running vendor with stable reputation
- +Reasonable pricing
- +Decent purity reports
Cons
- −Limited sterility/endotoxin reporting
- −UI feels dated
Testing: HPLC purity COAs publicly listed by lot.
Shipping: US domestic 3–5 day shipping.
Payments: Cryptocurrency · Card (intermittent)
Hyperion Peptides
United States · est. ~2021
Top tier
Often recommended for sensitive peptides (Tesamorelin, Tα1)
Pros
- +Very high QA standards
- +Detailed multi-method COAs (HPLC, MS, endotoxin, residual solvents)
- +Beautiful packaging
Cons
- −Smaller catalog
- −Premium pricing
- −Limited stock cycles
Testing: Multi-method COAs published per batch including endotoxin/sterility numbers.
Shipping: US domestic; cold pack standard.
Payments: Cryptocurrency · ACH
Particle Peptides
EU / United Kingdom · est. ~2020
Reputable
Best EU option for avoiding international customs complications
Pros
- +Reliable EU-domestic option
- +Customs-friendly fulfillment
- +Solid customer support
Cons
- −Catalog smaller than US peers
- −Higher EU pricing
Testing: HPLC COAs for most peptides; sterility certificates by request.
Shipping: EU + UK fulfillment; 2–5 business day domestic.
Payments: Cryptocurrency · Bank transfer
GeoPeptides
United States · est. ~2018
Reputable
Budget-friendly stack for common peptides
Pros
- +Frequent promotions
- +Decent COAs
- +Quick fulfillment
Cons
- −QC variance reported across some lots
- −Limited support
Testing: HPLC COAs by lot.
Shipping: US domestic only.
Payments: Cryptocurrency · Card (intermittent)
Pharma Lab Global
EU / United Kingdom · est. ~2017
Mixed reports
High-volume option for those willing to verify each batch independently
Pros
- +Massive catalog
- +Cheap pricing
- +Worldwide shipping
Cons
- −Inconsistent purity reports across batches
- −Customs seizures possible internationally
- −Mixed community feedback
Testing: Generic HPLC summaries; transparency varies.
Shipping: Worldwide; multi-week international transit times.
Payments: Cryptocurrency · Bank transfer
SwissChems
Switzerland (international) · est. ~2016
Reputable
One of the best-known international research-chemical vendors
Pros
- +Long history
- +Decent purity
- +Good packaging
- +Worldwide shipping
Cons
- −Pricing higher than US peers
- −Some shipments delayed at customs
Testing: Third-party HPLC + MS COAs published.
Shipping: Worldwide 7–14 day delivery.
Payments: Cryptocurrency · Card · Bank transfer
Ascendis Science
United States · est. ~2022
Top tier
Common pick for high-value peptides like Tesamorelin and SS-31
Pros
- +Newer GMP-style vendor
- +Cold-chain shipping
- +Detailed batch documentation
Cons
- −Premium pricing
- −Smaller catalog
Testing: GMP-style multi-method COAs including residual solvents, endotoxin and sterility.
Shipping: US cold-pack overnight.
Payments: Cryptocurrency · ACH
DIY Research Co
United States · est. ~2024
Newer / Watch
Watchlist vendor — request COA for every order until track record stabilizes
Pros
- +Aggressive pricing
- +Active social media presence
Cons
- −Newer vendor with limited track record
- −Sparse third-party COAs
Testing: Selective HPLC reports; not all batches documented.
Shipping: US domestic.
Payments: Cryptocurrency · Zelle
Pure Rawz
United States · est. ~2018
Reputable
High-traffic, long-running US vendor frequently mentioned in community vendor comparisons
Pros
- +Wide catalog covering peptides + research compounds
- +Published HPLC COAs by lot
- +Consistent fulfillment
Cons
- −Pricing in the middle tier
- −Customer service can be slow during sales
Testing: Third-party HPLC purity reports; sterility/endotoxin not always published.
Shipping: US domestic; international fulfillment varies.
Payments: Cryptocurrency · Card (intermittent) · Bank transfer
Peptide Sciences
United States · est. ~2014
Top tier
Often referenced as the 'old guard' US research-grade vendor
Pros
- +One of the longest-running US research-peptide vendors
- +Clean published COAs
- +Wide scientific catalog beyond just biohacker peptides
Cons
- −Premium pricing
- −International availability limited
Testing: Third-party HPLC + MS COAs available per batch on request.
Shipping: US domestic; cold-pack overnight available.
Payments: Cryptocurrency · Bank transfer
Sports Tech Labs
United States · est. ~2018
Reputable
Common pick for BPC-157 / TB-500 / GH-stack buyers focused on athletic recovery
Pros
- +Athlete-focused catalog (recovery + performance peptides)
- +Reliable shipping
- +Decent COA transparency
Cons
- −QA more sport-supplement-grade than pharma-grade
- −Smaller specialty selection
Testing: HPLC COAs published for primary catalog.
Shipping: US domestic; standard shipping.
Payments: Cryptocurrency · Card
Modern Aminos
United States · est. ~2021
Reputable
Frequently recommended for first-time buyers due to clearer site UX
Pros
- +Approachable UI, beginner-friendly
- +Solid HPLC purity on common peptides
- +Frequent promotions
Cons
- −Catalog leans toward popular peptides — niche compounds missing
- −Newer than top-tier peers
Testing: HPLC COAs by batch; sterility documentation by request.
Shipping: US domestic; standard 3–5 day.
Payments: Cryptocurrency · Card · Zelle
BioTech Peptides
United States · est. ~2017
Reputable
Workhorse mid-tier option for common peptides
Pros
- +Long-running mid-tier vendor
- +Decent purity track record
- +Stable fulfillment
Cons
- −Limited published sterility/endotoxin data
- −Older site UX
Testing: HPLC COAs by lot; multi-method testing inconsistent.
Shipping: US domestic.
Payments: Cryptocurrency · Bank transfer
Pinnacle Peptides
United States · est. ~2016
Reputable
Long-tail vendor that's quietly maintained reputation through multiple market shifts
Pros
- +Long history
- +Reasonable pricing
- +Consistent batch quality on common compounds
Cons
- −Sparse modern COA disclosure compared to newer premium vendors
Testing: HPLC purity on most peptides; older vendor practices.
Shipping: US domestic.
Payments: Cryptocurrency · Card (intermittent)
Behemoth Labz
United States · est. ~2019
Mixed reports
Volume-oriented vendor — extra COA verification recommended
Pros
- +Broad catalog including SARMs and peptides
- +Aggressive promotional pricing
Cons
- −Mixed user feedback on consistency
- −QC reports vary by lot
- −Customer service complaints common
Testing: Some HPLC reports; not always batch-matched.
Shipping: US domestic.
Payments: Cryptocurrency · Zelle
Olympus Labz
United States · est. ~2023
Newer / Watch
Newer entrant — request fresh COA on each order until track record builds
Pros
- +Modern site UX
- +Active promotional pricing
Cons
- −Limited public history
- −Sparse third-party COAs
Testing: Selective HPLC reports.
Shipping: US domestic.
Payments: Cryptocurrency · Card
Phenom Pharma
United States · est. ~2020
Mixed reports
Verify-each-batch territory — useful for niche compounds at lower prices
Pros
- +Large catalog spanning peptides + research chemicals
- +Frequent sales
Cons
- −Inconsistent QC reports across lots
- −Mixed community feedback
Testing: Variable HPLC documentation — verify per batch.
Shipping: US domestic.
Payments: Cryptocurrency
Sterling Peptides
United States · est. ~2023
Newer / Watch
Watchlist — promising presentation, not enough longitudinal data yet
Pros
- +Cleaner site presentation
- +Approachable pricing
Cons
- −Short track record
- −Limited public COA history
Testing: HPLC on primary catalog; depth varies.
Shipping: US domestic.
Payments: Cryptocurrency · Card (intermittent)
Western Biotech
United States · est. ~2019
Reputable
Worth checking when a niche compound isn't stocked elsewhere
Pros
- +Specialty / niche peptides occasionally available
- +Decent COA transparency
Cons
- −Smaller catalog
- −Lower brand recognition than peers
Testing: HPLC reports by lot.
Shipping: US domestic.
Payments: Cryptocurrency · Bank transfer
North Coast Peptides
United States · est. ~2020
Reputable
Solid mid-tier alternative when top-tier vendors are stocked-out
Pros
- +Mid-tier pricing with reasonable QC
- +Active community presence
Cons
- −Catalog rotates frequently — popular peptides occasionally out of stock
Testing: HPLC COAs available; less depth on sterility/endotoxin.
Shipping: US domestic.
Payments: Cryptocurrency · Zelle
BlueSky Peptide
United States · est. ~2018
Mixed reports
Verify each batch — historically OK but variance is the main concern
Pros
- +Long history in the US market
- +Frequent discount cycles
Cons
- −Inconsistent COA depth
- −Quality reports vary by batch
Testing: HPLC reports for many batches; not universal.
Shipping: US domestic.
Payments: Cryptocurrency · Card (intermittent)
Direct SARMs UK
United Kingdom · est. ~2017
Reputable
One of the better-known UK options for avoiding US-import customs
Pros
- +UK-domestic option for EU/UK buyers
- +Long history
- +Decent QC documentation
Cons
- −Pricing higher than US peers
- −Brexit-era customs adds friction for non-UK EU buyers
Testing: HPLC purity reports published.
Shipping: UK domestic + worldwide international shipping.
Payments: Cryptocurrency · Card · Bank transfer
Peptide Pros UK
United Kingdom · est. ~2019
Reputable
Solid choice for UK biohackers wanting domestic delivery
Pros
- +UK-based fulfillment
- +Decent COA transparency
- +Reasonable pricing for the region
Cons
- −Smaller catalog than US flagships
- −Limited cold-chain options
Testing: HPLC COAs available; multi-method less common.
Shipping: UK domestic; EU shipping varies.
Payments: Cryptocurrency · Bank transfer
Optimum Peptides UK
United Kingdom · est. ~2020
Reputable
Beginner-friendly UK option for common peptides like BPC-157, TB-500
Pros
- +Approachable site UX
- +UK-domestic for fast delivery
Cons
- −Smaller catalog focused on common peptides
- −QA documentation could be deeper
Testing: HPLC reports for primary catalog.
Shipping: UK domestic; limited international.
Payments: Cryptocurrency · Bank transfer
Bio-Peptide Australia
Australia · est. ~2019
Reputable
The standard recommendation for AU-based researchers due to customs reasons
Pros
- +Domestic Australian fulfillment
- +Avoids brutal AU customs intercept rates
- +Decent QC
Cons
- −Smaller catalog than international peers
- −Higher pricing
Testing: HPLC COAs by lot.
Shipping: Australia domestic.
Payments: Cryptocurrency · Bank transfer
CanLab Peptides
Canada · est. ~2020
Reputable
Best-known Canadian-domestic option for avoiding cross-border customs
Pros
- +Canadian domestic option
- +Good COA transparency for the region
Cons
- −Smaller catalog
- −Higher pricing than US peers
Testing: HPLC reports per batch.
Shipping: Canada domestic; US shipping intermittent.
Payments: Cryptocurrency · Bank transfer · Card
Loti Labs
United States · est. ~2018
Reputable
Specialist pick for the GH-secretagogue category
Pros
- +Specialty in GH-stack peptides (CJC/Ipa/Tesa) and HGH research compounds
- +Decent batch documentation
Cons
- −Catalog narrower outside GH category
- −Card payments intermittent
Testing: HPLC purity reports per batch.
Shipping: US domestic.
Payments: Cryptocurrency · Bank transfer
Empower Pharmacy
United States (Rx) · est. ~2009
Top tier
Compounding pharmacy — Rx required. The most-trusted name behind many GLP-1 telehealth services
Pros
- +503B FDA-registered compounding outsourcing facility
- +Full pharma-grade QC
- +Used by major telehealth providers
Cons
- −Requires a prescription (telehealth or in-person)
- −Not a 'research vendor' — operates as a pharmacy
Testing: Full pharma-grade QC, FDA inspection, NDC-tracked batches.
Shipping: US prescription fulfillment via partnered telehealth or licensed clinicians.
Payments: Through telehealth partner billing
Henry Meds
United States (Telehealth) · est. ~2022
Reputable
Telehealth front-end for legitimate compounded GLP-1 prescriptions
Pros
- +Legitimate telehealth Rx for compounded semaglutide / tirzepatide
- +Ships pharma-grade compounded peptide
- +Subscription pricing predictable
Cons
- −Requires telehealth visit + Rx
- −Compounded GLP-1 future regulatory landscape uncertain
Testing: Sources from registered compounding pharmacies (often Empower).
Shipping: US 50-state telehealth + cold-pack ship.
Payments: Card · Subscription billing
Mochi Health
United States (Telehealth) · est. ~2022
Reputable
Telehealth path for compounded semaglutide / tirzepatide with clinician oversight
Pros
- +Telehealth GLP-1 Rx with personalized clinician matching
- +Compounded peptide via licensed pharmacies
- +Insurance-friendly path when applicable
Cons
- −Telehealth visit + Rx required
- −Compounded peptide regulatory uncertainty
Testing: Pharmacy-sourced compounded GLP-1 (NDC-tracked).
Shipping: US 50-state telehealth.
Payments: Card · HSA/FSA where applicable · Insurance billing
Vendor due-diligence checklist
- Always request a third-party HPLC/MS COA for the exact lot number you receive.
- Compare COA mass match to the expected molecular weight of the peptide.
- For sterile injection use, confirm endotoxin and sterility testing.
- Inspect packaging on receipt — cracked vials, no fill volume, or warm shipping = reject.
- Cross-reference vendor reputation across at least two independent communities before ordering.
Disclosure: Some links on this page may be affiliate links. We may earn a commission on purchases made through them, at no additional cost to you. Sponsored placements are clearly labeled. Brands marked “First-party” are owned and operated by Peply Labs. Our reputation rankings are editorial and held to the same standard for first-party and third-party vendors alike.