think sharper

Cognitive Stack.

Semax
Semax
+
Selank
Selank

Semax sharpens focus and memory. Selank takes the edge off anxiety. Together they create steady, calm focus.

For education only.Combination protocols require medical supervision. The descriptions below are educational only — your provider designs the actual stack around your individual health history and goals. More.

Why these work together

Semax

  • Sharpens focus and memory
  • Lifts mental energy
  • Best taken in the morning

Selank

  • Smooths anxiety and stress
  • Steadies mood without drowsiness
  • Pairs well anytime of day

What's in this stack

Who this stack is for

Good fit

  • Working professionals who need steady focus through long days
  • People dealing with brain fog or mental fatigue
  • People who want sharper thinking but also need to dial down anxiety

Not a fit

  • People with severe bipolar disorder or schizophrenia, unless a specialist is overseeing the protocol

Typically prescribed

Semax

Selank

Dose

300-600 mcg

Dose

300-600 mcg

Frequency

1x or 2x daily

Frequency

1x or 2x daily

Route

Nasal spray

Route

Nasal spray

Duration

2-4 weeks

Duration

2-4 weeks

Always follow your provider's instructions. These are general reference ranges, not recommendations.

What to expect

Day 1-3

Noticeable focus and a calmer baseline

Week 1-2

Sharper memory recall and steadier mood

Week 3-4

Cumulative cognitive lift, less brain fog

Individual results vary. These timelines come from clinical observation and community reports, not guarantees.

About the Cognitive Stack

Can I take these peptides in the same syringe?
Some providers prescribe them pre-mixed in one shot, blended together by a compounding pharmacy (a pharmacy that mixes custom medications). If you have separate vials, use separate syringes unless your provider tells you otherwise.
How long should I run the Cognitive Stack?
It depends on the stack. Short-term repair stacks usually run 4 to 8 weeks. Longevity and GH stacks run longer, with planned rest periods built in. Your provider decides the right length based on how you respond.
Can I add other peptides to this stack?
Don't add anything without your provider's go-ahead. Stacking more peptides on top, using more than one peptide together, raises the chance of side effects and unintended interactions.