Semax / Selank Blend Dosage Calculator & Chart

1Set Up Your Mix

5 mg/mL · 5000 mcg/mL

1. Pick your peptide

2. How much peptide is in the vial? It's printed on the label — usually something like 5 mg

3. How much water are you adding? More water makes each dose easier to measure

4. How much do you want per dose?

Your Answer — Semax / Selank Blend

10 mg in 2 mL

10Draw To This Line

0.1That's This Many mL

20Doses In The Vial

10 mg ÷ 2 mL = 5 mg/mL → 500 mcg ÷ 5 mg/mL = 0.1 mL → × 100 = 10 units

Looks good. Draw to 10 units on a 1 mL syringe. That is an easy amount to measure, and this vial gives you 20 doses.

When to dose

Time of dayNo particular time of day has been established.

FoodNo fasting requirement has been established.

The studies behind this compound did not test timing or food state as variables, so we are not going to invent a rule. Pick a time you can keep to consistently.

2Week-By-Week Plan — Semax / Selank Blend

Start low, work up

When	Dose	How Often	How Many mL	Draw To	Number Of Doses	Peptide Used
Weeks 1–2	500 mcg	daily	0.1 mL	10 u	14	7 mg
Weeks 3–4	1000 mcg	daily	0.2 mL	20 u	14	14 mg
Week 5 onward per 4 weeks from here on	1200 mcg	daily	0.24 mL	24 u	28	33.6 mg

Time until the top dose

4 weeks

Peptide used getting there

21 mg

Vials you'll need

3 × 10 mg

Once you're at the top dose

33.6 mg / 4 wk · 3.36 vials

Where this plan came from

Built from this peptide's dose range

Where this came from: Built from the doses listed for this peptide below — start at the lowest and step up, using the studies cited on this page. Nobody publishes a week-by-week plan for this peptide, so we built one: the doses are the researched ones shown below, and we simply put them in order from lowest to highest. Treat it as a starting point, not an official schedule.

3Common Doses — Semax / Selank Blend

worked out for your mix

Level	Dose	How Often	How Many mL	Draw To	Doses In Vial
Low reported	500 mcg	1× daily · 250 mcg of each compound	0.1 mL	10 u	20 doses
Standard	1000 mcg	1–2× daily · 500 mcg of each compound	0.2 mL	20 u	10 doses
Upper reported	1200 mcg	1–2× daily · 600 mcg of each compound	0.24 mL	24 u	8 doses

Please read this. These numbers come from published research. They are here as reference, not as instructions. A lot of them come from lab studies rather than studies in people, and some of these peptides have never been given to a person at all.

About Semax / Selank Blend

Multi-Compound Blends

Also known as

Semax 5 mg + Selank 5 mg

Class

Multi-Compound Blends

Route

Subcutaneous

Half-life

Mixed (both short)

Evidence tier

Preclinical

An equal-parts pairing of the two Russian-registered neuropeptides — 5 mg of each in a 10 mg vial, so every dose splits evenly down the middle. Both are short-acting. Worth knowing that the published figures for both compounds come from intranasal studies rather than injection, so the amounts below are the researched doses rather than an established subcutaneous schedule.

Buy Semax / Selank Blend

Research Equipment

SyringesU-100 insulin · 1 mL · 29–31G

Alcohol wipes70% isopropyl prep pads

Serum base — for topical mixesHyaluronic acid serum for mixing peptides into a serum

Electric cooler caseTSA-approved travel cooler — keeps mixed vials at fridge temperature

Storage caseHard carry case for vials

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Common Questions — Semax / Selank Blend

How much bacteriostatic water do I add to a 10 mg vial of Semax / Selank Blend?

Adding 2 mL of bacteriostatic water to a 10 mg vial gives 5 mg/mL. That is the mix every number on this page is worked out from — change the water figure in the calculator and all the draw amounts update.

What dose of Semax / Selank Blend is used in research?

Published and reported figures for Semax / Selank Blend run from 500 mcg to 1200 mcg, typically 1× daily (250 mcg each). This site lists each figure with the source it came from rather than giving a single recommended number.

How many units on the syringe is a 500 mcg dose of Semax / Selank Blend?

At 5 mg/mL, a 500 mcg dose is 10 units on a 1 mL U-100 insulin syringe. One vial at that mix gives about 20 doses.

How strong is the evidence behind these Semax / Selank Blend doses?

Semax / Selank Blend is graded preclinical. Laboratory and animal data only. No human dosing trials have been published. We grade every compound on this site so you can weigh the numbers accordingly — the full method is on our editorial policy page.

Why Semax and Selank are paired

10/20 mg vial

What is in the vial

Semax 5 mg
Selank 5 mg

They are usually described as a matched pair covering two different things. Semax derives from ACTH(4-10) and is discussed for attention and cognition; Selank derives from tuftsin and is discussed for anxiety.

The pairing is convention rather than demonstrated synergy. Both carry Russian clinical use behind them, which is why both sit in the clinical tier despite thin Western literature — treat that tier as reflecting real clinical use rather than trials you can pull up and read.

The ratio matters. An even 5 mg + 5 mg split, so a 500 mcg dose is 250 mcg of each.

Where These Numbers Come From

Preclinical — Preclinical and in-vitro data only — no human dosing trials

See component entries: Semax, Selank No blend-specific literature exists

Neither compound has been studied in combination with the other. The ranges above are where both sit inside their own reported figures at the same time.

Find on PubMed ↗

Newest Studies — —

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Not reviewed by us. This list is pulled straight from Europe PMC as papers are published. Nobody has checked whether these are any good, or whether they change anything above. The dose numbers on this page only ever change after a person reviews the evidence.

Semax / Selank Blend Dosage & Reconstitution