Vendor directory
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57 storefronts in the directory. Sort and filter by the evidence on file — COA volume, independent labs, measured purity, and how recently they've tested.
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Active vendors 50
Strong · 92 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Verified Peptides
est. 2020
387 COAs · 2 labs · latest Jun 2026
Median purity 99.6%
Strong · 90 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Skye Peptides
Los Angeles, CA
· est. 2023
360 COAs · 2 labs · latest May 2026
Median purity 99.7%
Strong · 85 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Simple Peptide
Delray Beach, FL
· est. 2023
269 COAs · 1 lab · latest Apr 2026
Median purity 99.7%
Strong · 96 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
BioLongevity Labs
Akron, OH
· est. 2024
234 COAs · 4 labs · latest May 2026
Median purity 99.8%
Strong · 99 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Peptide Partners
Sheridan, WY
· est. 2014
187 COAs · 4 labs · latest May 2026
Median purity 99.8%
Strong · 95 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Profound Aminos
Minneapolis, MN
· est. 2025
166 COAs · 4 labs · latest May 2026
Median purity 99.8%
Strong · 99 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Glacier Aminos
Fort Collins, CO
· est. 2016
144 COAs · 6 labs · latest May 2026
Median purity 99.8%
Strong · 90 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Hydro Research Peptides
Chicago, IL
· est. 2023
98 COAs · 2 labs · latest Dec 2025
last tested 6 months ago
Median purity 99.7%
Strong · 95 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Reta One Labs
Cypress, TX
· est. 2025
94 COAs · 3 labs · latest Feb 2026
Median purity 99.8%
Strong · 94 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Peptide Tech
Sheridan, WY
· est. 2024
82 COAs · 5 labs · latest Apr 2026
Median purity 99.4%
Strong · 83 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Peptide Supply Co.
est. 2024
73 COAs · 1 lab · latest May 2026
Median purity 99.6%
Strong · 95 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Crush Research
Sheridan, WY
· est. 2025
65 COAs · 3 labs · latest Jun 2026
Median purity 99.7%
Strong · 95 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Mile High Compounds
Monument, CO
· est. 2025
57 COAs · 4 labs · latest Mar 2026
Median purity 99.7%
Strong · 96 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Prime Peptides
Las Vegas, NV
· est. 2024
48 COAs · 4 labs · latest May 2026
Median purity 99.7%
Strong · 83 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Reta Peptide
CN
· est. 2024
47 COAs · 1 lab · latest Apr 2026
Median purity 99.6%
Strong · 82 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
MedGe Peptides
San Jose, CA
41 COAs · 1 lab · latest Jan 2026
Median purity 99.7%
Strong · 93 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Amino Club
Elmwood Park, NJ
· est. 2019
31 COAs · 2 labs · latest Apr 2026
Median purity 99.7%
Strong · 84 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Peptidegurus
Glendale, Arizona
· est. 2024
31 COAs · 1 lab · latest Apr 2026
Median purity 99.7%
Strong · 79 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
OROS Research
Cary, North Carolina
· est. 2025
28 COAs · 1 lab · latest May 2026
Median purity 99.0%
Strong · 82 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Blank Peptides
Sheridan, WY
· est. 2026
26 COAs · 1 lab · latest Apr 2026
Median purity 99.7%
Strong · 87 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Qihang Peptide
HK
· est. 2015
26 COAs · 1 lab · latest Apr 2026
Median purity 99.7%
Strong · 83 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Peptide Plugs
Liberty Hill, Texas
· est. 2025
24 COAs · 1 lab · latest May 2026
Median purity 99.7%
Strong · 94 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Forge Performance Co.
Austin, TX
· est. 2025
23 COAs · 3 labs · latest Apr 2026
Median purity 99.6%
Strong · 84 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Ascension Peptides
Castle Rock, CO
· est. 2024
17 COAs · 1 lab · latest Feb 2026
Median purity 99.8%
Strong · 82 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Cocer Peptides
HK
· est. 2025
15 COAs · 1 lab · latest Mar 2026
Median purity 99.7%
Moderate · 68 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Crystal Peptides
9 COAs · 1 lab · latest Jan 2026
Median purity 99.4%
Moderate · 62 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Orbitrex Peptides
Flower Mound, TX
· est. 2025
6 COAs · 1 lab · latest Mar 2026
Median purity 99.9%
Moderate · 54 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
MEI-PEPETIDE
Qingdao
· est. 2025
5 COAs · 1 lab · latest Jul 2025
last tested 11 months ago
Median purity 99.7%
Moderate · 60 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
SH Peptide Ltd
Henan
· est. 2025
5 COAs · 1 lab · latest Mar 2026
Median purity 99.7%
Moderate · 55 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
ZLZ peptides
est. 2024
5 COAs · 1 lab · latest Nov 2025
last tested 7 months ago
Median purity 99.0%
Moderate · 54 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
InnoPeptide
HK
· est. 2025
4 COAs · 1 lab · latest Jan 2026
Median purity 99.9%
Limited · 40 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
HK Peptide Ltd (hk peptides)
CN
· est. 2024
3 COAs · 1 lab · latest Sep 2024
last tested 20 months ago
Median purity 99.7%
Moderate · 51 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Hkuppeptide
HK
3 COAs · 1 lab · latest Apr 2026
Median purity 99.8%
Moderate · 55 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Licensed Peptides
Boca Raton, Florida
· est. 2025
3 COAs · 2 labs · latest Feb 2026
Median purity 99.7%
Moderate · 52 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Peptiatlas
Shanghai
· est. 2025
3 COAs · 1 lab · latest Apr 2026
Median purity 99.8%
Moderate · 51 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Taikangbio
HK
· est. 2026
3 COAs · 1 lab · latest Apr 2026
Median purity 99.8%
Moderate · 52 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Taishijie
Hong Kong
· est. 2025
3 COAs · 1 lab · latest Apr 2026
Median purity 99.8%
Moderate · 54 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Texpeptide
Orange, Texas
· est. 2025
3 COAs · 2 labs · latest Oct 2025
last tested 8 months ago
Median purity 99.8%
Moderate · 51 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Vicopeptide
est. 2026
3 COAs · 1 lab · latest Apr 2026
Median purity 99.8%
Moderate · 53 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
YH Peptide
est. 2024
3 COAs · 1 lab · latest Mar 2026
Median purity 99.8%
Moderate · 51 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Zjpeptix
Hong Kong
· est. 2026
3 COAs · 1 lab · latest Apr 2026
Median purity 99.8%
Limited · 47 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
DongCheng Peptide
HK
· est. 2025
2 COAs · 1 lab · latest Apr 2026
Median purity 99.8%
Limited · 43 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Peptidology
Scottsdale, AZ
· est. 2024
2 COAs · 1 lab · latest Mar 2026
Median purity 99.4%
Limited · 43 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
zztai Peptide Ltd
HK
· est. 2024
2 COAs · 1 lab · latest Jul 2025
last tested 11 months ago
Median purity 99.9%
Limited · 43 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
HongDa Peptide
HK
· est. 2018
1 COA · 1 lab · latest Apr 2026
Median purity 99.7%
Limited · 39 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
MJT peptides
Hangzhou
· est. 2026
1 COA · 1 lab · latest Apr 2026
Median purity 99.9%
Limited · 43 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Mandy
Hangzhou
· est. 2014
1 COA · 1 lab · latest Jan 2026
Median purity 99.9%
Minimal · 14 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Qing Li Peptide
Yiwu, Zhejiang
· est. 2024
1 COA · 1 lab · latest Apr 2025
last tested 14 months ago
Limited · 39 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
SSR
est. 2026
1 COA · 1 lab · latest Apr 2026
Median purity 99.9%
Minimal · 16 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Active
Zhuoyan lab Peptide
est. 2025
1 COA · 1 lab · latest Mar 2026
Unknown status 7
Strong · 95 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Unknown
Ion Peptide
Alpharetta, GA
· est. 2025
246 COAs · 5 labs · latest May 2026
Median purity 99.7%
Moderate · 61 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Unknown
Certified Peptides
est. 2024
45 COAs · 2 labs · latest Mar 2026
Median purity 99.3%
Strong · 89 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Unknown
Sunrise Bioresearch
Tucson, Arizona
· est. 2025
35 COAs · 2 labs · latest May 2026
Median purity 99.7%
Strong · 92 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Unknown
Riptide Wellness
est. 2014
23 COAs · 2 labs · latest May 2026
Median purity 99.6%
Strong · 75 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Unknown
EZ Peptides
Albuquerque, NM
· est. 2023
11 COAs · 1 lab · latest Jun 2026
Median purity 99.8%
Limited · 49 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Unknown
Nox Amino
est. 2026
3 COAs · 1 lab · latest May 2026
Median purity 99.7%
Limited · 38 A 0–100 score earned only from observable evidence: independent COAs (weighted by lab reputation and age), number of distinct labs, median measured purity, evidence breadth, and years active. No reviews, rankings, or price. See /about for full methodology.
Unknown
Moglabs
Sheridan, WY
· est. 2014
1 COA · 1 lab · latest May 2026
Median purity 98.9%