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Goal

Peptides for anxiety and depression

Selank is the only peptide on this site with published human anxiety studies. None of those abstracts states how much participants received.

Source: Based on 2 compound guides · checked 2026-08-13

That gives Selank real human evidence, but no usable dose. The studies were small, written in Russian and never registered in a trial database. Their abstracts report anxiety scores, but not the amount given.

Semax is often compared with Selank in the same search. Its human studies followed stroke, motor-neuron disease and brain injury instead. BPC-157 has no human anxiety study. Depression has no direct comparison among any of the three.

At a glance

Compounds covered

2

With published human dosing

1 of 2

Approved or being tested for this

0

No human evidence for this goal

1

Start with the outcome

Which mental-health question are you trying to answer?

Anxiety treatment, depression, peptide comparisons and GLP-1 safety are different questions. Choose the one that matches what you want to know.

Small human comparisons exist

Selank for anxiety

Russian groups compared Selank with older sedatives in people with anxiety disorders. The abstracts report anxiety outcomes but never state a human dose.

Open the Selank evidence guide

No peptide ranks first

The best medicine for anxiety

These peptide records do not establish a best anxiety treatment. If the question began after a GLP-1, that is a separate class-safety question with its own FDA timeline.

Read the separate GLP-1 safety evidence

No depression comparison

Semax or Selank for depression

The two have never been compared for depression. Selank’s human papers studied anxiety disorders; Semax’s human papers studied neurologic recovery and motor-neuron disease.

See what Semax was actually studied for

No human anxiety study

BPC-157 for anxiety

BPC-157’s small human reports covered knee pain, bladder symptoms and an infusion safety pilot. None measured anxiety or depression.

Open the BPC-157 human evidence

Two compounds, and what the human studies actually measured

Selank has studies in anxiety. Semax has more human studies, but in different neurologic conditions. Neither supports a depression comparison.

◆ 2 compounds coveredsources shown in each row
Compounds people take for this purpose, why they use them, what human research has measured, and where the evidence comes from.
CompoundWhat people take it forWhat research showsEvidence
SelankPeople buy it for anxiety, stress and calm focus, often as a nasal product and sometimes as powder for injection.Measured in a human studyRussian groups studied it in people with generalized anxiety, phobic anxiety and related disorders. The reports include active comparisons, but none of the reachable abstracts prints the amount anyone received. No trial was registered, and the human safety profile repeated in English reviews traces to a rat experiment.limited human dataNo human dose published
SemaxPeople buy it as a nootropic for focus and memory, then compare it with Selank when searching for mood or depression support.Reported use onlyIts human papers studied recovery after stroke, motor-neuron disease and oxygen-starvation brain injury. None measured anxiety or depression. The clearest result was negative in 27 people with motor-neuron disease, and the published quantities belong to nasal use rather than an injection under the skin.limited human dataDose from a human trial · no FDA label

1 rests on a human study that measured something in this goal. 1 rests on reported use alone, with no study behind it.

Selank has human anxiety studies and no published human dose

That combination matters. Sixty-two people with generalized anxiety disorder or neurasthenia were compared across Selank and medazepam groups. Another 60 with phobic-anxiety or somatoform disorders were compared with phenazepam, and a later 70-person study used Selank as an add-on. Those are human anxiety studies, not cell or animal work.

The reachable abstracts still leave out the amount given. No registration supplies the missing protocol because no Selank study appears on a trial registry. A page can report the outcome and still refuse to invent the dose; here it has to do both.

The safety claims are thinner than the benefit claims. English reviews describe a reassuring human side-effect profile, but their cited source is a rat study. That does not prove the opposite. It means the human safety claim has no human source behind it.

No depression trial and no head-to-head comparison

No paper on either record compares Semax with Selank for depression. Selank’s studies enrolled people with anxiety-related diagnoses. Semax’s studies enrolled people with neurologic injury or disease. Putting the names in one search does not put them in one trial.

BPC-157 does not close the gap. Its small human reports did not measure anxiety, mood or depression, and almost all published research on it remains animal work. The available studies cannot rank any of these three as a depression treatment.

Where to go next

The 10 goal categories, side by side

Nothing here ranks anything: a reason to prefer one compound is a reason to sell it.

Selank without an approved label: what exists instead

No published half-life figure was found for selank.

Semax without an approved label: what exists instead

No published half-life figure was found for semax.

What is established for testosterone

For testosterone, 1 of 4 compounds have human evidence and 3 rely on reported use alone.

Skin: the page beside the pitch

The cosmetic clearance is not evidence, and it is doing the selling.

Where the sexual function evidence stops

Compare all 2 compounds associated with sexual function, with a source for every supported claim.

Every compound sold for healing and recovery

4 compounds are sold or prescribed for healing and recovery; the comparison shows what has actually been studied.

The sleep table, basis by basis

Compare why people use each compound with what human studies have actually measured for sleep.

Every purpose covered this way is listed on the index of goals people buy peptides for.

Questions readers ask

Does Selank work for anxiety?

Small Russian studies compared Selank with older sedatives and reported anxiety outcomes. None of the reachable abstracts states the amount participants received.

What is the best medicine for anxiety?

These peptide records cannot answer that. They do not compare ordinary anxiety treatments, and the Selank evidence is too thin to establish a best option.

Is Semax or Selank better for depression?

Neither has a human depression comparison. Selank studies covered anxiety-related disorders. Semax studies covered neurologic recovery and motor-neuron disease.

Is BPC-157 good for anxiety?

No human BPC-157 report measured anxiety or depression. Its few human reports covered other conditions, while most published work remains animal research.

8primary sources, each with the day we read it — open the documents used on this page