Checked October 19, 2026 · 68 vendors
Semax prices (October 2026)
Synthetic ACTH(4-10) analogue studied in cognition research. Below: every US vendor we track that sells Semax, cheapest per milligram first. The lowest in-stock price this week is $1.75/mg at Bulk Peptide Supply.
- Lowest per mg
- $1.75
- Median per mg
- $4.50
- Cheapest with COA
- $1.75
- Vendor publishes COAs
- 87%
Bulk Peptide Supply
61 in stock
Bulk Peptide Supply
of in-stock offers
Semax prices, cheapest per mg
▼ cheaper / ▲ dearer than last week- 1
Semax 10mg
$17.50
10 mg
$1.75/mg
NewCheck pricebulkpeptidesupply.com
- 2
Peptide Pros2.0
Semax 30mg
$58.25
$73.9930 mg
$1.94/mg
NewCheck pricepeptidepros.net
- 3
Semax 25mg
$53.00
25 mg
$2.12/mg
NewCheck pricebiotechpeptides.com
- 4
Semax 30mg
$68.00
30 mg
$2.27/mg
NewCheck priceparamountpeptides.com
- 5
Semax 30mg
$69.00
30 mg
$2.30/mg
NewCheck priceskyepeptides.com
- 6
Raw Amino1.0Semax 25mg
$58.00
25 mg
$2.32/mg
NewCheck pricerawamino.com
- 7
Tydes6.0Semax 30mg
$69.99
30 mg
$2.33/mg
NewCheck pricetydes.is
- 8
FRO Peptides5.0
Semax – Research Peptide 30mg
$69.99
30 mg
$2.33/mg
NewCheck pricefropeptides.com
- 9
Swiss Chems7.2Semax 30mg
$73.95
30 mg
$2.47/mg
NewCheck priceswisschems.is
- 10
Amino USA4.7Semax 30mg
$75.00
30 mg
$2.50/mg
NewCheck priceaminousa.com
- 11
Semax 25mg
$63.00
25 mg
$2.52/mg
NewCheck pricecorepeptides.com
- 12
Semax 30mg
$76.99
$85.5530 mg
$2.57/mg
NewCheck priceCode Affiliate5
- 13
Semax 10mg
$26.98
10 mg
$2.70/mg
NewCheck pricesunrisebioresearch.com
- 14
Semax 30mg
$81.00
30 mg
$2.70/mg
NewCheck pricepeptide.partners
- 15
N- Acetyl Semax - Liberty Peptides 30mg
$85.00
30 mg
$2.83/mg
NewCheck pricelibertypeptides.com
- 16
Atomik Labz1.0
Semax 30mg
$90.00
30 mg
$3.00/mg
NewCheck priceatomiklabzpeptides.com
- 17
Semax 10mg
$32.99
10 mg
$3.30/mg
NewCheck pricearcticlabsupply.com
- 18
SEMAX 12mg
$39.99
$49.9912 mg
$3.33/mg
NewCheck pricethrivepeptides.us
- 19
Semax NA 10mg
$34.99
$39.9910 mg
$3.50/mg
NewCheck pricenusciencepeptides.com
- 20
Semax 10mg
$35.00
10 mg
$3.50/mg
NewCheck pricepeptidecrafters.com
- 21
Semax 10mg
$35.00
10 mg
$3.50/mg
NewCheck pricefelixchem.is
- 22
Semax 10mg
$35.20
$44.0010 mg
$3.52/mg
NewCheck pricesouthernaminos.com
- 23
Onyx Biolabs2.0Semax Peptide 10mg
$35.99
$50.0010 mg
$3.60/mg
NewCheck priceonyxbiolabs.com
- 24
Semax 10mg
$39.00
10 mg
$3.90/mg
NewCheck pricelabfirstpeptides.com
- 25
PSPeptides7.0Semax 1 11mg
$42.99
11 mg
$3.91/mg
NewCheck priceCode CHECKED
- 26
Semax Research Peptide 10mg
$39.99
10 mg
$4.00/mg
NewCheck priceeliteresearchlab.com
- 27
Semax 10mg
$40.00
10 mg
$4.00/mg
NewCheck pricepeptideplugs.com
- 28
Semax 10mg
$44.99
10 mg
$4.50/mg
NewCheck pricealphapropeptides.com
- 29
Semax 10mg
$45.00
10 mg
$4.50/mg
NewCheck priceprimepeptides.co
- 30
Oasis Labs6.0Semax 10mg
$45.00
10 mg
$4.50/mg
NewCheck pricemyoasislabs.com
- 31
Semax 10mg
$45.00
10 mg
$4.50/mg
NewCheck pricepulsepeptidelabs.com
- 32
Semax 10mg
$49.00
10 mg
$4.90/mg
NewCheck pricehonestpeptide.com
- 33
Hello Stacks6.0Semax 10mg
$49.00
10 mg
$4.90/mg
NewCheck pricehellostacks.com
- 34
Drexa Labs3.5Semax 10mg
$49.00
10 mg
$4.90/mg
NewCheck pricedrexalabs.com
- 35
Semax 10mg
$49.49
10 mg
$4.95/mg
NewCheck pricemedurapeptides.com
- 36
![Semax [] 10mg product photo](/products/peptidechecked/offers/pinnacle-peptide-labs-semax-10.webp)
Semax [] 10mg
$49.99
10 mg
$5.00/mg
NewCheck pricepinnaclepeptidelabs.com
- 37
SEMAX 10mg
$50.00
10 mg
$5.00/mg
NewCheck priceCode CHECKED
- 38
Semax 10mg
$50.00
10 mg
$5.00/mg
NewCheck pricepeptidessource.com
- 39
Semax 10mg
$50.00
10 mg
$5.00/mg
NewCheck pricepurapeptides.com
- 40
Semax 10mg
$50.00
10 mg
$5.00/mg
NewCheck pricepeptide.express
- 41
Semax 10mg
$50.00
$59.9910 mg
$5.00/mg
NewCheck priceCode AFFILIATE50OFF
- 42
Masters Peptides (M-Peptides)3.5Semax 10mg
$51.00
10 mg
$5.10/mg
NewCheck pricempeptides.com
- 43
NextGenPeps8.0Semax Peptide 10mg
$52.00
10 mg
$5.20/mg
NewCheck pricenextgenpeps.com
- 44
SEMAX 10mg
$54.00
10 mg
$5.40/mg
NewCheck pricecertified-pep.com
- 45
Semax 10mg
$54.00
$60.0010 mg
$5.40/mg
NewCheck priceyourfitnesspeptides.com
- 46
BulkGLP6.0Semax Peptide — Research Vial 10mg
$55.00
10 mg
$5.50/mg
NewCheck pricebulkglp.com
- 47
BioInfinity7.5Semax 10mg
$60.00
10 mg
$6.00/mg
NewCheck pricebioinfinity.co
- 48
Semax 10mg
$60.00
10 mg
$6.00/mg
NewCheck priceprotidehealth.com
- 49
Semax 10mg
$60.00
10 mg
$6.00/mg
NewCheck pricebased-research.com
- 50
SEMAX 10mg
$65.00
10 mg
$6.50/mg
NewCheck priceamericanpeptides.us
- 51
Semax 5mg
$35.99
5 mg
$7.20/mg
NewCheck pricemodifiedaminos.shop
- 52
AminoVault4.0Semax 10mg
$74.00
10 mg
$7.40/mg
NewCheck priceaminovault.com
- 53
Curo5.0Semax 10mg
$74.00
10 mg
$7.40/mg
NewCheck pricecuro.you
- 54
NA Semax 10mg
$74.99
10 mg
$7.50/mg
NewCheck pricepeptide-warehouse.com
- 55
Semax Research Peptide 10mg
$75.00
10 mg
$7.50/mg
NewCheck pricenextdaypeptides.com
- 56
Semax 10mg
$79.00
10 mg
$7.90/mg
NewCheck pricewarrior-makers.com
- 57
Loti Labs3.0Buy Semax at Wholesale Prices - 99% Purity 5mg
$39.99
5 mg
$8.00/mg
NewCheck pricelotilabs.com
- 58
Semax 10mg
$79.99
10 mg
$8.00/mg
NewCheck pricesportstechnologylabs.com
- 59
Semax 10mg
$83.99
10 mg
$8.40/mg
NewCheck pricecernumbiosciences.com
- 60
Semax 5mg
$70.00
$90.005 mg
$14.00/mg
NewCheck priceprimelabpeptides.com
- 61
Peptara Labs6.5Semax 10mg
$150
10 mg
$15.00/mg
NewCheck pricepeptaralabs.io
- 62
Steady Meds5.5Semax （XA10） 10mg (per vial, 10-vial kit $45)
$4.50
10 mg
$0.450/mg
NewCheck pricesteadymeds.com
- 63
Uther4.0Semax (10 Vials / Kit) 10mg (per vial, 10-vial kit $60)
$6.00
10 mg
$0.600/mg
NewCheck priceutherpeptide.com
- 64
SaiyanMed6.0Semax 10mg (per vial, 10-vial kit $80)
$8.00
10 mg
$0.800/mg
NewCheck pricesaiyanmed.com
- 65
Semax 10mg (per vial, 10-vial kit $80)
$8.00
10 mg
$0.800/mg
NewCheck pricehealth-tides.com
- 66
Semax 5mg (per vial, 10-vial kit $99)
$9.90
5 mg
$1.98/mg
NewCheck pricechimera-peptides.com
- 67
SEMAX (10-Pack) 10mg (per vial, 10-vial kit $307.43)
$30.74
10 mg
$3.07/mg
NewCheck priceglacieraminos.shop
- –
Peptidology6.0Semax 10mg
$38.00
10 mg
$3.80/mg
NewCheck pricepeptidology.co
Prices are the vendor's list price for one vial on the check date, in USD, before shipping. Ranked by price per mg; vendors that only sell multi-vial kits are listed after single-vial prices, at the per-vial price; sponsorship never changes the order. Links marked "Check price" may earn us a commission.
Semax price history
Price history starts with our first weekly check. Each re-check adds a point here, so the chart fills in week by week.
Research use only. The compounds referenced on this page are sold for laboratory research purposes only. They are not drugs, foods, cosmetics or dietary supplements, and they are not approved by the FDA for human or veterinary use. Nothing on this page is medical advice. PeptideChecked does not sell peptides, does not provide dosing guidance, and does not recommend the use of any compound in humans.
FAQ
Semax price questions
Where is Semax cheapest?
On October 19, 2026, the lowest Semax price per mg among in-stock vendors was Bulk Peptide Supply at $1.75/mg ($17.50 for 10 mg).
How much does Semax cost per mg?
The median across 61 in-stock vendors was $4.50 per mg on October 19, 2026, with a range of $1.75 to $15.00.
How often are these prices checked?
Weekly. We read each price from the vendor's own product page and save every check, so each row shows the change since last week.
What does the COA badge mean?
The vendor publishes certificates of analysis (lab reports) for its products on its own site. 87% of the in-stock offers above come from vendors that do. Check that a report exists for the exact product and lot you order: a COA shows what a lab measured for one batch, not a guarantee about the vial you receive.