Fast onset via nasal mucosa.
The nasal mucosa is one of the most efficient absorption surfaces in the body. It is thin, highly vascularized, and in close proximity to the brain — making nasal delivery the fastest non-injectable route for compounds targeting cognitive and neurological function.
For peptides like NA-Semax and NA-Selank, nasal delivery is not just convenient — it is the delivery route used in the clinical trials that established their efficacy. Russian research spanning 30+ years was conducted specifically via intranasal administration.
Tilt head slightly forward. Insert tip into one nostril while closing the other. Spray and breathe in gently through the nose. Alternate nostrils per dose.
Do not tilt head back — this reduces mucosal contact and absorption. Each 20mL pump bottle provides approximately 200 actuations at 0.1mL per spray.