Brain, mood and sleep
Semax / Selank
Editorial audit: October 15, 2026 · draft; scientific, medical and translation review pending
01What is reported
Semax and Selank are described for focus, anxiety, stress and cognitive performance. They are different molecules even when discussed together.
02Proposed rationale
Neurobiological mechanisms and regional clinical reports are offered as explanations. A mechanism does not establish healthy-person cognitive enhancement.
03What the research shows
The audit located limited, context-specific human and experimental evidence. Study quality, population and accessibility of full methods constrain broad conclusions.
04Limits and unknowns
Do not describe all cognitive or anxiety uses as clinically established, or claim that nasal delivery makes safety questions disappear.
NOT A RECOMMENDATION.Each amount is attributed to the source identified for that entry: regulatory product labeling, human research, or community and practice sources. These source categories have different evidentiary roles. They are not medical advice, not a protocol, not a recommended or safe dose, and not evidence that it works. Do not use them to start, change or stop any treatment. Talk to a qualified healthcare professional.
05Questions to ask about the product
Which molecule, formulation, route, indication and jurisdiction are documented? Keep the records separate.
NOT A RECOMMENDATION.Each amount is attributed to the source identified for that entry: regulatory product labeling, human research, or community and practice sources. These source categories have different evidentiary roles. They are not medical advice, not a protocol, not a recommended or safe dose, and not evidence that it works. Do not use them to start, change or stop any treatment. Talk to a qualified healthcare professional.
06Open research question
Can reports distinguish a defined symptom outcome from general productivity, expectancy effects and concurrent sleep or medication changes?
Primary and regulatory references
- 1.
- 2.