Intranasal Delivery
Nasal sprays.
Direct to bloodstream.
Research peptides designed for nasal administration. Fast absorption, high bioavailability to the brain, zero needles.
- COA Verified
- Fast absorption
- Brain-targeted
- Travel friendly
Why nasal
Fast, targeted, needle-free.
The nasal cavity is a direct line to both systemic circulation and the central nervous system — a combination injectable routes can’t match.
Rapid absorption
Nasal mucosa is richly vascularized — peptides reach systemic circulation within minutes, bypassing the slow GI route.
Blood-brain bypass
Direct pathway to the CNS via olfactory and trigeminal nerves — ideal for nootropic peptides like Selank and Semax.
No injections
Spray, dose, go. Zero reconstitution math, zero sharps, zero prep. Research as simple as applying a nasal allergy spray.
Research flexibility
Many peptides can be formulated into nasal sprays, giving researchers an alternative route when injections aren't practical.
Featured nasal peptides
Intranasal formulations.
Research peptides most commonly formulated and studied via the nasal route.
More nasal formats
PT-141
10mg vial · Ascension
Melanocortin agonist for sexual function research. Fast-onset alternative to subcutaneous Bremelanotide. Can be reconstituted for intranasal delivery.
Shop — 50% off code ENHANCEDOxytocin
2mg vial · Ascension
Hormonal research peptide commonly delivered intranasally — one of the most-studied nasal peptides for CNS endpoints like social bonding and stress response.
Shop — 50% off code ENHANCEDKisspeptin
10mg vial · Ascension
Master HPG-axis regulator researched for fertility and reproductive endpoints. Researchers use nasal delivery for direct CNS access.
Shop — 50% off code ENHANCEDHow it works
Three steps to systemic delivery
Step 01
Spray
A small volume (100-200μL) is atomized into the nostril using a calibrated metered pump.
Step 02
Absorb
Peptides cross the olfactory and respiratory mucosa, entering capillaries and nerve pathways.
Step 03
Effect
Systemic or direct CNS delivery produces measurable effects within 5-15 minutes of dosing.
What works nasally
Peptides suited to the nasal route
Frequently asked
Nasal peptide questions, answered
Ready for a faster route
Shop nasal spray peptides
COA-verified, US-based, discreet shipping. Use code ENHANCED for 50% off your entire order at Ascension Peptides.