Best Semax Vendors in 2026
Cognitive / NeuroRanked by Finnrick trust score, purity testing, and price.
Orbitrex Peptides is our #1 pick for Semax, with a Finnrick trust score of 9.0/10. Across 56 tracked vendors, prices range from $24.00 to $200.00. Rankings combine independent purity testing data, vendor trust scores, pricing, and stock availability. We never accept payment for placement.
#1
Orbitrex Peptides
Top Pick9.0/10
$29.99(10mg)— $3.00/mg
In Stock#2
Aavant Research
8.7/10
$30.00(10mg)— $3.00/mg
In Stock#3
Peptide Sciences
7.2/10
$75.00(30mg)— $2.50/mg
In Stock#4
Paramount Peptides
6.7/10
$60.00(30mg)— $2.00/mg
In Stock#5
Felix Chem
7.9/10
$34.99(10mg)— $3.50/mg
In Stock#6
NextGen Health
7.9/10
$35.00(10mg)— $3.50/mg
In Stock#7
NUPEPS Peptides
9.0/10
$55.00(10mg)— $5.50/mg
In Stock#8
Bio Pepz
6.5/10
$29.00(9.11mg)— $3.18/mg
In Stock#9
Eros Peptides
6.9/10
$34.99(10mg)— $3.50/mg
In Stock#10
BioLongevity Labs
6.0/10
$64.97(20mg)— $3.25/mg
In Stock#11
Nextech Labs
7.0/10
$45.00(10mg)— $4.50/mg
In Stock#12
Peptidology
7.6/10
$38.00(12mg)— $3.17/mg
Out of Stock#13
Risynth Bio
9.1/10
$50.00(10mg)— $5.00/mg
Out of Stock#14
Lumi Peptides
7.8/10
$35.00(10mg)— $3.50/mg
Out of Stock#15
Simple Peptide
7.0/10
$55.00(10mg)— $5.50/mg
In Stock#16
Polaris Peptides
7.3/10
$50.00(15mg)— $3.33/mg
Out of Stock#17
SwissChems
4.0/10
$73.95(30mg)— $2.46/mg
In Stock#18
Oasis Labs
5.7/10
$48.50(10mg)— $4.85/mg
In Stock#19
Bulk Peptides
7.5/10
$140.00(5mg)— $28.00/mg
Out of Stock#20
Umbrella Labs
$29.99(30mg)— $1.00/mg
Out of Stock#21
Behemoth Labz
$30.98(30mg)— $1.03/mg
Out of Stock#22
Molecular Edge
$60.00(30mg)— $2.00/mg
In Stock#23
Biotech Peptides
$53.00(25mg)— $2.12/mg
Out of Stock#24
Skye Peptides
$69.00(30mg)— $2.30/mg
In Stock#25
Genetic Peptide
$75.00(30mg)— $2.50/mg
In Stock#26
Sunrise Bioresearch
$129.86(50mg)— $2.60/mg
Out of Stock#27
Glow Aminos
$149.00(50mg)— $2.98/mg
In Stock#28
Welli Labs
$29.99(10mg)— $3.00/mg
In Stock#29
Modern Research
$31.99(10mg)— $3.20/mg
In Stock#30
True Peptide
$32.00(10mg)— $3.20/mg
In Stock#31
Ion Peptide
$32.90(10mg)— $3.29/mg
In Stock#32
Research Chem
$34.99(10mg)— $3.50/mg
In Stock#33
Pepvida Labs
$35.00(10mg)— $3.50/mg
In Stock#34
Step One
$35.00(10mg)— $3.50/mg
In Stock#35
Solution Peptides
$35.00(10mg)— $3.50/mg
In Stock#36
AMC Essentials
$39.99(10mg)— $4.00/mg
In Stock#37
Mile High Compounds
$39.99(10mg)— $4.00/mg
In Stock#38
Longevity Peptides
$40.00(10mg)— $4.00/mg
In Stock#39
Flawless Compounds
$44.00(10mg)— $4.40/mg
In Stock#40
NorthWest Peptides
$49.99(11mg)— $4.54/mg
In Stock#41
Ageless Vitality Peptides
$47.00(10mg)— $4.70/mg
In Stock#42
Ruo Bio
$24.00(5mg)— $4.80/mg
In Stock#43
Peptira
$49.00(10mg)— $4.90/mg
In Stock#44
Ascension Peptides
$50.00(10mg)— $5.00/mg
In Stock#45
Southern Aminos
$54.00(10mg)— $5.40/mg
In Stock#46
Alpha Omega
$55.00(10mg)— $5.50/mg
In Stock#47
Real Peptides
$60.00(10mg)— $6.00/mg
In Stock#48
Arcane Peptides
$30.00(5mg)— $6.00/mg
In Stock#49
Protide Health
$60.00(10mg)— $6.00/mg
In Stock#50
Royal Peptides
$65.00(10mg)— $6.50/mg
Out of Stock#51
Strate Labs
$79.95(10mg)— $8.00/mg
Out of Stock#52
Onyx Research
$42.50(5mg)— $8.50/mg
In Stock#53
Soma Chems
$49.99(5mg)— $10.00/mg
Out of Stock#54
Wellness Peptides
$32.00
In Stock#55
Riptide Wellness
$47.99
In Stock#56
LA Peptides
$39.99
In StockHow we rank vendors
Our composite score weighs Finnrick blind-testing trust scores (50%), Janoshik independent lab tests (20%), price competitiveness (20%), and stock availability (10%). Vendors without Finnrick data are sorted by price below scored vendors. We update data daily and never accept payment for rankings. Learn more.
Last updated: May 23, 2026