Research consistently shows that select peptides like Semax, Selank, and Melanotan II are most effective when delivered nasally, allowing for faster absorption and better bioavailability where it matters most. That’s why we focus only on peptides that are proven to perform in this form.


With Starline Chems, you’re choosing precision, performance, and peptides that deliver.

Selank 200mcg

$65.67

A ready-to-use intranasal formulation of Selank, delivering 200mcg per spray actuation from a total of 10mg per bottle (approximately 50 sprays). Intranasal delivery allows for direct olfactory pathway absorption, bypassing first-pass metabolism. Studied for anxiolytic and nootropic research applications. Pre-mixed, no reconstitution required. COA verified.

For research use only.

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Semax 200mcg

$86.62

A ready-to-use intranasal formulation of Semax, delivering 200mcg per actuation from a total of 10mg per bottle (approximately 50 sprays). The intranasal route is the most studied delivery method for Semax in published literature, allowing for rapid CNS-proximal absorption via the olfactory mucosa. Pre-mixed, no reconstitution required. COA verified.

For research use only.

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Melanotan II 200mcg

$75.00

A ready-to-use intranasal formulation of Melanotan II, delivering 200mcg per spray from a total of 10mg per bottle (approximately 50 sprays). Intranasal delivery has been studied as an alternative to subcutaneous administration for melanocortin receptor research. Pre-mixed, no reconstitution required. COA verified.

For research use only.

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Semax + Selank 400mcg

$126.29

Starline’s flagship cognitive nasal spray combines Semax (10mg) and Selank (10mg) in a single bottle, delivering 400mcg per actuation — 200mcg of each compound (approximately 50 sprays). These two neuropeptides have complementary research profiles: Semax targets BDNF upregulation and neuroprotection while Selank addresses anxiety pathway modulation and immune balance. Studied together for broad-spectrum cognitive and neurological research. Pre-mixed, no reconstitution required. COA verified.

For research use only.

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