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Side-by-side comparison

Semax

Cognitive & Neuroprotective PeptideSafety 8/10

Nootropic / cognitive research

vs

Oxytocin

Safety 9/10
Semax
Oxytocin
Cheapest price
$19.20 /10mg
$20.00 /5mg
Vendors stocking
27
11
Safety rating
8/10
9/10
Mol. weight
813.9 g/mol
—
Administration
Intranasal
Intranasal

Price Comparison — 2026

Semax

VendorPrice
Polar Peptides$19.20 /10mgBuy →
Biotech Peptides$21.20 /10mgBuy →
Amino Club$23.99 /10mgBuy →
Peptyx Labs$24.00 /10mgBuy →
Core Peptides$25.20 /10mgBuy →
Red River Peptides$25.50 /10mgBuy →
+21 more vendors →

Oxytocin

VendorPrice
SomaChems$20.00 /5mgBuy →
Biotech Peptides$22.50 /5mgBuy →
LeoLab Rx$25.00 /5mgBuy →
Core Peptides$26.00 /5mgBuy →
Evolve Peptides$29.75 /5mgBuy →
BioLongevity Labs$32.48 /5mgBuy →
+5 more vendors →

Vendors Carrying Both

10 vendors stock both Semax and Oxytocin — convenient if you want to bundle an order.

SomaChemsSemax: $55.98Oxytocin: $20.00Visit →
Biotech PeptidesSemax: $21.20Oxytocin: $22.50Visit →
LeoLab RxSemax: $80.00Oxytocin: $25.00Visit →
Core PeptidesSemax: $25.20Oxytocin: $26.00Visit →
Evolve PeptidesSemax: $42.50Oxytocin: $29.75Visit →
Modern AminosSemax: $38.00Oxytocin: $34.00Visit →
Licensed PeptidesSemax: $26.00Oxytocin: $38.49Visit →
UK PeptidesSemax: $53.80Oxytocin: $39.11Visit →
PeptuviaSemax: $84.00Oxytocin: $53.00Visit →
PeptiraSemax: $49.00Oxytocin: $85.00Visit →

Safety Notes

Semax

FDA: Approved in Russia/Ukraine

Approved for neurological conditions in Russia; intranasal well-tolerated; no major safety signals

Oxytocin

FDA: FDA-approved (Pitocin)

Decades of use in L&D; water intoxication risk at very high doses; well-characterized

Explore Further

Semax

Full profile →Cheapest deals →

Oxytocin

Full profile →Cheapest deals →
All current deals →Browse all peptides →
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