Not yet available, we are working hard on this format.
View the pre-filled pensNot yet available
View the pre-filled pens In development, not yet available to order
We are working hard on the nasal sprays and will open the range as soon as it is ready. Until then nothing on this page can be added to the basket. If you need material now, the pre-filled pens cover the same compounds where a pen exists, and we consider the pen the better format anyway.
The format
Why a spray exists at all
The nasal mucosa is thin, richly supplied with blood vessels and sits close to the central nervous system. That combination is why a handful of compounds are studied in this route at all, and why the group is small: most peptides are simply too large to cross it in any meaningful quantity.
The molecules that do appear here, Semax, Selank, DSIP, PT-141, are all short sequences. That is not a coincidence. Chain length is the first thing that decides whether this route is worth investigating.
What a spray gives you in practice is repeatability without sharps. What it costs you is control over concentration: the solution arrives as it arrives.
Handling in short
- Prime the pump before first use until a full mist appears
- Keep it upright and refrigerated between sessions
- Note the date of first use on the label
- One bottle, one purpose, do not decant into another container
Handling notes only. Nothing here is dosing guidance.
The range
Every spray we supply
Five items across sleep, cognition, longevity and hormonal research.
The shortlist
Why the list stays short
What decides whether a compound reaches this shelf at all, and what the label can tell you once it does.
A peptide nasal spray earns a place in a catalogue only when the molecule is small enough for the mucosa to be a credible route, and that filter is unusually strict. Permeability falls away as chain length rises, so the shelf fills up with short sequences and stops. Adding more items would mean offering a route the chemistry does not support, which is a different kind of product decision from a commercial one.
Milligrams and millilitres are not two ways of saying the same thing. The milligram figure states how much compound the bottle holds; the millilitre figure states the volume that compound is dissolved in. Together they set the concentration, which is fixed at filling and cannot be adjusted afterwards. If your work needs a different concentration, the honest answer is that this format cannot supply it and the comparison of the two routes explains what changes when you move.
What the pump guarantees is a consistent volume per actuation. What it cannot guarantee is how much of that volume crosses the mucosa, because the absorption reported for this route varies between subjects and with the condition of the tissue. That variability is a known feature of the route rather than a fault in the bottle, and it is documented across the intranasal delivery literature on PubMed. Treating the two figures as interchangeable is the most common error in this format.
The solution is already made and the bottle is opened repeatedly, which puts more weight on storage here than on a sealed cartridge. Cold, dark and upright is the whole rule, and the storage and shelf-life page covers what warmth and light actually do to a peptide already in solution.
Read first
The compounds in this format
Each of these has its own file with the origin, the structure and the state of the literature.
Compound
Semax
A heptapeptide with a largely Russian-language evidence base, and an honest note on what that means for verification.
Read CompoundPT-141
Also catalogued as bremelanotide, and how it relates structurally to melanotan 2.
Read CompoundNAD+
Not a peptide at all but a coenzyme, and why it keeps appearing in peptide catalogues anyway.
ReadFrequently asked
About nasal sprays
The questions that come up about this route specifically.