3rd Party Tested
Semax
Semax is a synthetic heptapeptide analogue of the ACTH(4–10) fragment, developed in Russia and studied extensively in CNS research models. Available as standard Semax (Met-Glu-His-Phe-Pro-Gly-Pro) and as N-Acetyl Semax Amidate (XA Semax — Ac-Met-Glu-His-Phe-Pro-Gly-Pro-NH2), an acetylated and amidated form with enhanced enzymatic stability and prolonged receptor engagement. Both forms are studied in laboratory models of BDNF/NGF upregulation, cognitive function, neuroprotection, HPA axis modulation, and monoaminergic pathway research. XA Semax incorporates N-terminal acetylation and C-terminal amidation to reduce aminopeptidase and carboxypeptidase cleavage, resulting in extended functional stability in preclinical preparations.
Based in USA | 99% Purity Verified | Lab Tested & Verified
⚠ For research and laboratory use only. Not for human consumption.
82 reviews for Semax
Only logged in customers who have purchased this product may leave a review.
Orders ship within 1–2 business days. Free shipping on orders over $200. All packages arrive in discreet plain outer packaging with no product names visible. Domestic delivery in 2–3 days.
All sales of research products are final. Please refer to our Return & Refunds Policy for full details.
Store below -18°C away from light and moisture. Once reconstituted refrigerate at 2–8°C and use within 28 days. Handle with sterile technique at all times.



Nancy Howard
Semax definitely doing what it should. already placed my next order
Alexander Diaz
this it works and that’s what counts. ordering again next month
Kelly Nguyen
my friend put me on to this and it showed up in 2 days. semax it works, simple as that. already reordered
Janice Roberts
This definitely doing what it should. already reordered
Karen Price
2 day delivery which I was happy about. semax I can tell it’s doing something, really happy with it
Andrew Brooks
shipped really fast, had it in 2 days. this does what it promises. ordering again next month
Maria Garcia
Decided to give this a try and it showed up in 2 days. this noticing results which is all that matters. going to keep ordering for sure
Shirley Harris
Came in 3 days, fast enough for me. semax does what it promises
Cynthia Turner
Semax working exactly as I hoped. already reordered
Kathryn Murphy
Semax I can tell it’s doing something, really happy with it. already placed my next order
Anthony Henderson
semax I can tell it’s doing something, really happy with it. not going anywhere else for this
Debra Cook
semax this actually works. will definitely order again
Scott Scott
This working exactly as I hoped. 10/10 would order again
Alice Ross
picked this up after seeing it recommended and arrived faster than I expected, 2 days. this noticing results which is all that matters. the actual packaging inside was really elegant, way nicer than I expected honestly
Stephen Rodriguez
shipping was quick, 2 days. this results are there, can’t complain. will be a repeat customer
Sandra King
Took 3 days to get to me but still pretty fast. this does exactly what it’s supposed to
Joan Barnes
showed up in 2 days, way faster than I expected. semax does exactly what it’s supposed to. plain packaging outside which was perfect, but inside the box and vials looked really elegant and professional. already on my third order
Terry Rogers
Decided to give this a try and got it in about 2-3 days. semax actually works which surprised me a little. ordering again next month
Carol Baker
Got here in 2 days. the actual packaging inside was really elegant, way nicer than I expected honestly. this can definitely tell it’s working
Anna Morales
shipped really fast, had it in 2 days. this can definitely tell it’s working
Paul Myers
got here in like 2 days. semax noticing results which is all that matters
Donna Wilson
picked this up after seeing it recommended and semax it works, simple as that. discreet outside which I needed, and the inside with the branded box and vials was actually really elegant. already on my third order
Stephen Brooks
Got here in 2 days which was great. this been getting results so I’m happy. outer packaging was plain like any other package, really discreet
Nicholas Reyes
This working exactly as I hoped. will be back for sure
Michelle Wright
Showed up in 2 days, way faster than I expected. this it works, simple as that. will be a repeat customer
Betty Lopez
Neuropeptide research demands this level of synthesis precision. Batch-to-batch consistency is impressive and no issues across four consecutive orders.
Brian Harris
semax results are there, can’t complain
Ruth Jenkins
This I can tell it’s doing something, really happy with it. already on my third order
Amanda Gonzalez
tried this on a recommendation and semax it works better than I expected honestly. already reordered
Margaret Cook
Got it in about 2-3 days. semax actually works which surprised me a little. will be a repeat customer
Doris Cruz
Got here in 2 days. semax noticing results which is all that matters
Ryan Lewis
My friend put me on to this and semax working exactly as I hoped. sticking with Telos
Samantha Hall
got here in 2 days which was great. this results are there, can’t complain
Cynthia Ortiz
My friend put me on to this and semax it works better than I expected honestly. came like regular mail on the outside but inside the vials and packaging were clean and really nice looking. will be back for sure
Jeffrey Howard
semax it works better than I expected honestly. going to keep ordering for sure
Diane Walker
Decided to give this a try and this been getting results so I’m happy. plain packaging outside which was perfect, but inside the box and vials looked really elegant and professional
Brian Watson
been a customer for a while now and this definitely doing what it should
Emily Moore
got here in 3 days. this this actually works. 10/10 would order again
Ronald Morales
My friend put me on to this and came in 3 days, fast enough for me. semax does exactly what it’s supposed to. discreet outside which I needed, and the inside with the branded box and vials was actually really elegant
Donald Martinez
My friend put me on to this and it showed up in 2 days. semax working exactly as I hoped. sticking with Telos
Janet Hernandez
Showed up in 2 days, way faster than I expected. this definitely doing what it should. going to keep ordering for sure
Charles Green
Shipping was quick, 2 days. semax actually works which surprised me a little
Donna Lewis
Showed up in 2 days, way faster than I expected. semax I can tell it’s doing something, really happy with it
Eric Baker
got here in 2 days. this it works, simple as that
Judith Price
arrived faster than I expected, 2 days. this I can tell it’s doing something, really happy with it. 10/10 would order again
Nicholas Rivera
Started using this a month ago and it showed up in 2 days. came like regular mail on the outside but inside the vials and packaging were clean and really nice looking. semax does exactly what it’s supposed to. already placed my next order
Sharon Russell
arrived faster than I expected, 2 days. this definitely doing what it should
Charles Turner
Semax actually works which surprised me a little. will be back for sure
Jason Ramirez
got here in 2 days. the outer box was super plain, nothing on it. exactly what I needed. semax definitely doing what it should
Jason Wilson
Showed up in 2 days, way faster than I expected. this does what it promises
Carol Rivera
semax can definitely tell it’s working
Kimberly Myers
Got here in 2 days which was great. semax this actually works. ordering again next month
Laura Wood
started using this a month ago and this I can tell it’s doing something, really happy with it. the outer box was super plain, nothing on it. exactly what I needed. already reordered
David Moore
Showed up in 2 days, way faster than I expected. semax results are there, can’t complain
Janet Evans
Decided to give this a try and it showed up in 3 days. semax working exactly as I hoped. won’t be switching to anything else
Gregory Baker
Started using this a month ago and semax noticing results which is all that matters. the outer box was super plain, nothing on it. exactly what I needed
Scott Moore
Showed up in 2 days, way faster than I expected. semax it works and that’s what counts. will be back for sure
Charles King
This does what it promises
Kenneth James
came in 3 days, fast enough for me. semax definitely doing what it should. ordering again next month
Sharon Hall
This this actually works. the branded box and vials inside were honestly really elegant
Angela Myers
Arrived in 3 days which wasn’t bad at all. this working exactly as I hoped. won’t be switching to anything else
Lisa King
this does exactly what it’s supposed to. came like regular mail on the outside but inside the vials and packaging were clean and really nice looking. 10/10 would order again
Catherine Fisher
Arrived faster than I expected, 2 days. semax definitely doing what it should
Christina Baker
Got here in 2 days. outer packaging was plain like any other package, really discreet. semax can definitely tell it’s working
Brenda Collins
This I can tell it’s doing something, really happy with it. will be back for sure
Thomas Butler
Shipping was quick, 2 days. this I can tell it’s doing something, really happy with it
Jason Fisher
Tried this on a recommendation and this working exactly as I hoped. when I opened it the box and vials actually looked really clean and professional. ordering again next month
Joan Baker
got here in 2 days. this noticing results which is all that matters
Jacob Hill
Arrived faster than I expected, 2 days. semax actually works which surprised me a little
Anthony Thompson
came in 3 days, fast enough for me. semax it works, simple as that. 10/10 would order again
Michael Cox
got here in 2 days which was great. semax can definitely tell it’s working. will definitely order again
John Hughes
Decided to give this a try and it showed up in 2 days. this can definitely tell it’s working. already placed my next order
Patrick Anderson
This does what it promises
Deborah Brown
Heard about this and decided to order and it showed up in 3 days. semax been getting results so I’m happy
Donna Torres
picked this up after seeing it recommended and semax actually works which surprised me a little. packaging was really discreet, looked like regular mail. no one would ever know what it was. already reordered
Sandra Hill
Third order in and no issues across four consecutive orders. Our neuropharmacology lab has standardized on Telos Semax. Our entire lab has switched to Telos.
Michael Perry
arrived in 3 days which wasn’t bad at all. semax definitely doing what it should. won’t be switching to anything else
Kimberly Scott
this I can tell it’s doing something, really happy with it. already placed my next order
Catherine Rogers
My friend put me on to this and semax results are there, can’t complain
Thomas Jones
shipping was quick, 2 days. this it works, simple as that
Jack Cruz
Showed up in 2 days, way faster than I expected. semax results are there, can’t complain. outer packaging was plain like any other package, really discreet. already on my third order
Nicole Henderson
this does what it promises