Selank peptide therapy

A calming peptide designed to help you think clearer, stress less, and feel more like yourself — prescribed and monitored by iThriveMD providers.

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Over 8,000 patients treated
selank nasal spray bottle
STRESS & COGNITIVE BALANCE PEPTIDE

What is Selank?

Selank is a peptide that works with your brain's natural calming system to help you manage stress without the fog, drowsiness, or dependency risks that come with traditional medications. It supports the same pathways your body already uses to stay calm and focused — just more effectively. Patients often describe it as feeling like the volume on stress gets turned down while mental clarity stays sharp.

Promotes calm focus without sedation, dependency, or cognitive impairment
Supports both stress resilience and immune function through complementary pathways
Locations in CA & AZ
Provider guided protocols
Telehealth available
Calm without the fog
Eases anxiety by working with your brain's natural calming pathways — no sedation, no dependency, no mental dullness.
Sharper focus
Supports memory, mental clarity, and concentration by influencing the brain chemistry behind learning and recall.
Steadier mood
Helps stabilize day-to-day mood and ease low energy by supporting your body's natural mood-regulating signals.
Stress resilience
Buffers your body's stress response so daily pressures feel more manageable and recovery comes faster.
Immune support
Balances immune signaling and supports antiviral defense — especially helpful when stress is wearing your system down.
Gut-brain calm
Eases stress-related digestive discomfort by supporting the connection between your gut and nervous system.
Select an area to explore benefits

What Selank may be used for

Your iThriveMD provider may consider Selank as part of a peptide protocol for patients dealing with:

Stress & overwhelm

Support for a healthier stress response without sedation or dependency

Mental clarity

Nootropic support for focus and cognitive sharpness without overstimulation

Anxious feelings

Natural calming support that works with your brain's own chemistry

Immune health

Immune-modulating properties that support your body's defenses

Mood fluctuations

Support for emotional balance through healthy serotonin activity

Sleep quality

Support for falling asleep easier and sleeping more restfully

How Selank works

Selank has been studied for its activity across several key neural and immune pathways relevant to stress resilience, cognitive function, and emotional balance:

Thr Lys Pro Arg Pro Gly Pro
Thr Lys Pro Arg Pro Gly Pro
(Graphic: Complete 7 amino acid sequence of Selank — a synthetic heptapeptide derived from the immunomodulatory peptide tuftsin)

GABA Modulation

Enhances GABA receptor sensitivity for calming effects without the sedation, tolerance, or dependency associated with benzodiazepines
GABA
GABA-R
Receptor Sensitivity

Serotonin Metabolism

Modulates serotonin metabolism, influencing the balance between serotonin and its metabolites in key brain regions for mood stability
Serotonin
5-HT
Mood

Immune Function Support

As a tuftsin analog, retains immunomodulatory properties influencing cytokine expression and NK cell activity
Cytokines
NK Cells
Tuftsin

Nootropic & Memory Support

Supports memory consolidation and cognitive processing through BDNF and neurotrophic signaling pathways
BDNF
Cognition
Memory

Sleep & Circadian Support

GABA modulation and stress reduction support improved sleep onset, quality, and circadian rhythm regulation
Sleep
GABA
Circadian

Stress Response Optimization

Bidirectional immune and neurological effects support a balanced, adaptive stress response over time
HPA Axis
Cortisol
Resilience

Peptide treatments

What to expect from your Selank protocol

Your provider designs your protocol around your labs, health history, and goals. Here's what a typical Selank protocol looks like.

Dosing

Standard dose
200mcg (1 spray)
Method
Intranasal spray
Frequency
Twice daily
Cycle
3 months on / 1 month off
Bottle
2mg/ml, 6ml
*All dosing decisions are made by your prescribing provider. The information above reflects general protocol guidelines — your individual protocol may differ.

Your Selank timeline

Results build over each phase

1-2 weeks

Initial shift in stress response and mental clarity

2-4 weeks

Cumulative calming and cognitive benefits build

3 months

Full protocol effects for sustained resilience and balance

Administration

Selank is available as a nasal spray or subcutaneous injection. Most patients use the nasal spray for convenience. Your provider will guide proper administration technique and dosing schedule during your consultation.

Monitoring

Your provider monitors your progress through follow-up appointments and may adjust dosing, frequency, or cycling based on your response.
Ready to start?

Find out if Selank is right for you

You deserve to feel calm and focused — without compromising your sharpness or relying on medications with unwanted side effects. Book a consultation with an iThriveMD provider to discuss whether Selank may support your stress resilience and cognitive balance.
Locations in CA & AZ
Provider guided protocols
Telehealth available
holding selank nasal spray bottle
women doing meditation
selank nasal spray
selank nasal spray bottle

Selank is a synthetic peptide that has been studied for its calming, cognitive-enhancing, and immune-supporting properties. It is prescribed for potential support of stress resilience, mental clarity, mood balance, and immune function. All use requires provider evaluation.

Patient experiences vary. Some report a sense of calm focus — reduced stress reactivity without sedation or brain fog. Others describe improved emotional balance and better sleep. Unlike benzodiazepines, Selank is not associated with drowsiness or cognitive impairment in research settings.

The standard dose is 200 mcg (4 units), administered twice daily via intranasal spray. For the Semax/Selank combination, the standard is 200 mcg/200 mcg (4 units) twice daily. Protocols typically run 3 months on / 1 month off. Your provider determines specific dosing based on your individual assessment.

Response timelines vary. Some patients notice changes in stress response and mental clarity within 1–2 weeks. Cumulative benefits — including immune support and deeper calming effects — may develop over several weeks of consistent use.

Selank may not be appropriate for individuals with active malignancy, those who are pregnant or breastfeeding, those with known peptide hypersensitivity, those taking benzodiazepines or other GABA-modulating medications, or those with autoimmune conditions. A comprehensive medical evaluation is required.

No. Unlike benzodiazepines and other traditional anti-anxiety medications, Selank has not shown sedation, tolerance, or dependency in studied populations. It works by supporting your brain’s natural calming pathways rather than overriding them.

Longevity clinic locations

* Peptide therapy is currently available at our Encinitas and Mission Valley clinics, with more locations coming soon.
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Patient testimonials

“I’ve lost 31 pounds, and my sleep is fantastic!”

Waynes testimonial
Wayne’s Story

Love the staff and all the amazing encouragement and most definitely the results of the weight loss medication!

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Kim W.

The Doctors here are very knowledgeable and friendly. I have been comming here for 5 months and have had such amazing weight loss! I highly recommend I Thrive MD.

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Alicia M.

They are very good at explaining & guiding me in the direction I should go with procedures without “selling”, which I super appreciate.

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Jennifer M.

I had my first visit at IThrive Encinitas and I am happy I did! The facility was well maintained, clean and bright and as soon as I arrived I was greeted by 2 very polite and professional Receptionists.

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Sheena H.

The Dr was very thorough and patiently answered all my questions. My first visit was awesome!

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Marina C.

I couldn’t be more thankful for iThriveMD! Since I started my journey mid October I’ve lost 25 pounds and feel like a new person! I have way more energy and don’t feel uncomfortable in my own skin anymore.

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Angelica H.

Their new wellness center in Mission Valley is awesome! So calming and comfortable from the moment you walk in.

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Holly G.

I have been coming to iThriveMD ever since they opened up and I am obsessed! This is like my new wellness place that I enjoy coming to when I am feeling down and need to be lifted up!

Ari - avatar
Ari P.

I’ve been on it for 3 months and lost35 pounds. Fortunately I had no negative side effects. I feel great. Everyone here was very polite and very welcoming.

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Dr. Charles

Great location! Exceptional staff! I truly feel taken care of here! 10/10 recommend.

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Gloria H.

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