Selank dosage chart by route
People take selank before something stressful, later in the day, or as a course of a week or two, and vendors most often give the injected amount as 250 to 500 mcg. Here are the patterns, who they come from and what to draw.
How much Selank do people take?
Amount
250–500 mcginjected; vendor rangeTiming
Once a dayor before an eventCourse
About 14 daysor as neededRoute
Under the skinor nasal dropsThe timing before an event, as-needed use, breaks and once-a-day injections are reported experience and vendor convention, and the 250 to 500 mcg injected amount is vendor and community convention, with no named clinician or study behind them. The 14-day course (repeatable after 1 to 3 weeks) and the nasal drops are from the Russian prescribing information for Selank 0.15% drops (rlsnet.ru).
Selank dosage chart
How to read the Selank chart
Most of what people do with selank, a dose before a stressful event, one later in the day, a course of a week or two and a break, is reported use, and the injected row is vendor and community convention. The other two rows are what the studies were for. One is the approved drops, a daily course for anxiety disorders. The other is a Russian anxiety study whose abstract gives no amount or route. The drops don't transfer cleanly to an injection, so read the source column before comparing amounts. Background on the compound lives on the Selank page.
Selank injection dosage and mixing
Selank is sold as freeze-dried powder, mostly in 10 mg vials, with a 5 mg vial from a smaller number of vendors. You mix it with bacteriostatic water, which is sterile water with a preservative so one vial can be drawn from more than once. The table shows the units to draw on a U-100 syringe, which holds 100 units in 1 mL, for 1, 2 and 3 mL of water.
| Water | Strength | 250 mcg | 500 mcg |
|---|---|---|---|
| 1 mL | 10,000 mcg per mL | 2.5 units | 5 units |
| 2 mL | 5,000 mcg per mL | 5 units | 10 units |
| 3 mL | about 3,333 mcg per mL | 7.5 units | 15 units |
These are small draws, so 3 mL gives the easiest marks to read. A 5 mg vial doubles each number at the same water, so 2 mL gives 10 units for 250 mcg and 20 units for 500 mcg.
For any other vial, water or amount, the reconstitution calculator does the same math.
Selank nasal spray dosage
Ready-made research sprays are sold by the total milligrams in the bottle, and the amount per spray is rarely on the listing. Divide the milligrams by the number of sprays. Pumps vary and listings rarely say what theirs gives, so the table below assumes 0.1 mL a spray, about 10 sprays per mL, which is our working figure rather than a measured one.
| Bottle | Sprays in it | Per spray |
|---|---|---|
| 20 mg in 8 mL | about 80 | about 250 mcg |
| 40 mg in 8 mL | about 80 | about 500 mcg |
| 40 mg in 30 mL | about 300 | about 133 mcg |
The same 40 mg in a bigger bottle is nearly four times weaker per spray. If a listing doesn't give the fill volume, ask the vendor before buying. Bottle sizes here are examples of the math, not a list of what's sold.
When and how often
Before the thing that makes you nervous. The timing people describe is 15 to 40 minutes ahead of a presentation, a meeting or a social event, and one first-person account reports steadier hands and a calmer voice. Others take it later in the day to let go of work.
On the day, or as a course. Both are in use. Some people take it only when the day calls for it, and others take it daily for a week or two because the calm is reported to build quietly, with a break of one to three weeks before the next course.
Once a day for injections. That's the pattern on vendor pages and in the community.
What the label was for. The Russian label is 2 drops in each nostril, 3 times a day, for a 14-day course that can be repeated after 1 to 3 weeks, prescribed for anxiety disorders. The injected patterns borrow that shape, and we found no study of the injected version.
How long a vial lasts
A mixed vial goes on a 28-day clock in the fridge the day water goes in, however much of it gets used.
A 10 mg vial at 500 mcg a day lasts 20 days, and at 250 mcg a day it would last 40 but expires at 28 with about 3 mg unused. A 5 mg vial at 250 mcg a day lasts 20 days, and at 500 mcg a day it lasts 10. A 14-day course takes 3.5 mg at 250 mcg a day or 7 mg at 500 mcg, so a 5 mg vial fits the lower amount and a 10 mg vial fits the higher one.
Selank with other peptides
The pairing people report most is selank with semax, semax earlier in the day and selank later, described as calm but alert. We found no study that tests them together. Each has its own amounts on its own dosage chart.
Some sprays sold as selank are N-Acetyl Selank Amidate, a modified version that listings describe as lasting longer. None of the sources on this page used it, so don't carry the amounts across.
Signs the amount or timing is off
These are reported experiences, not findings from a study of research vials.
Drowsiness or a flat feeling. It's the opposite of what people take it for, and they usually drop the amount or stop.
Irritation in the nose. People report it with home-mixed sprays and stop or dilute.
A reaction where you injected. People report redness or a lump, and rotate the spot or stop if it doesn't settle.
Nothing at all. Some people report feeling nothing from a full course. People describe the effect as quiet, and many only notice it by comparing how they behaved a week in with before, so they often stop at 14 days and reassess.
The label rules it out in pregnancy, breastfeeding and under 18.
It's sold for research, and the big human trials haven't been run yet. You knew that, it's why you're reading this and not the label.
Questions people ask about Selank dosage
How much selank should I take per day?
The injected amount most often given is 250 to 500 mcg once a day, from vendor pages and community use. The approved Russian drops are 2 drops in each nostril 3 times a day, and no study or label sets an injected amount. Some people split the daily amount into two smaller doses, which is convention too, with no source showing it makes a difference.
How many sprays of selank per day?
The Russian label is 2 drops in each nostril, 3 times a day. Ready-made research sprays list total milligrams and rarely the amount per spray, so divide the milligrams by the sprays in the bottle, which is about 10 per mL if the pump gives 0.1 mL a spray, though listings rarely confirm it.
How much bacteriostatic water for a 10 mg vial of selank?
You can use 1, 2 or 3 mL, because the water only changes the size of each draw. With 3 mL in a 10 mg vial, 250 mcg is 7.5 units and 500 mcg is 15 units on a U-100 syringe, and less water makes the draws smaller and harder to measure.
Can you take selank only when you need it?
Plenty of people do. They take it 15 to 40 minutes before a presentation, a meeting or a social event, or later in the day to let go of work, and others take it as a course because the calm is reported to build over a week or two. That's all reported experience, and the label course is a daily 14-day one for anxiety disorders, where the effect lasted about a week after the last dose.
Is it safe to take selank with a benzodiazepine or alcohol?
The Russian label says no interaction was established with alcohol and doesn't list benzodiazepines. In a rat study, selank plus diazepam, a benzodiazepine in the same class as Xanax, did best against anxiety under chronic stress, and the authors say selank may change how diazepam works. We found no study in people.
Can you mix selank powder into a nasal spray yourself?
People do, and we found no study that measured how much of a home-mixed spray is absorbed or what concentration works. The injected amounts don't carry over to it, and the approved drops are a set 1.5 mg per mL, which a home mix won't match unless you mix to it.
Where to buy Selank
The five lowest per-mg prices in this morning's check, one listing per vendor.
- Glow Aminos 10 mg · $24.20 $2.42/mg
- Flawless Compounds 10 mg · $24.20 $2.42/mg
- Next Gen Peptides 30 mg · $75.00 $2.50/mg
- Alpha Peptides 10 mg · $26.06 $2.61/mg
- Alpha Labs 10 mg · $27.99 $2.80/mg
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