Semax

t½ 5 minutes
ACTH 4-10 analogSemax 1%

A synthetic peptide analog of ACTH(4-10) studied for neuroprotective and cognitive-enhancing properties.

Dosing Ranges

Conservative

Starting dose

2.5 mcg/kg

Standard

Standard dose

5 mcg/kg

Aggressive

Aggressive dose

7.5 mcg/kg

Doses are in mcg per kg of body weight. Use the Dosage Calculator to get your exact dose.

Protocol Details

Frequency

1–3x daily

Cycle Length

2–4 weeks

Administration

Intranasal

Research Notes

  • 1Approved in Russia for stroke recovery and cognitive disorders.
  • 2Primarily administered intranasally; crosses the blood-brain barrier.
  • 3May increase BDNF expression and support neuroplasticity.
  • 4Does not affect cortisol levels despite being an ACTH fragment.
  • 5Typically used in short cycles with breaks in between.

Common Vial Sizes

3 mg5 mg

Calculate your dose

Enter your body weight to get your exact dose in mcg for Semax.

Open Dosage Calculator

More tools

Reconstitution

BAC water + injection volume

Half-Life Visualizer

Concentration curve over time

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IU ↔ mL across syringe types

Where to source peptides

Research Use Only

Apollo Peptides

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Peptide Sciences

US-based, 98%+ purity, fast shipping

Limitless Life Nootropics

Wide catalog, quantity discounts

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For informational and research tracking purposes only. Not medical advice. Always consult a qualified healthcare professional before starting any peptide protocol.

Sources & References

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PepStack is for research and educational purposes only. This is not medical advice. Always consult a qualified healthcare provider before using any peptides. Dosing data is sourced from published research and community protocols — verify with your provider.

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