Advisory Consultation · London

Cognitive
& Mood
Protocol

Clarity-Focused  ·  Neuroprotective  ·  Physician-Led

A physician-designed advisory programme exploring the most researched neuropeptide compounds in cognitive function, neuroplasticity, mood regulation, and neuroprotection. Led personally by Dr. Ethan Hausman-Marquis — PhD (Karolinska Institute), nearly 20 years of specialist peptide research experience. Every programme begins with your bloodwork.

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Protocol Overview

Duration

60 mins

Discomfort

1 / 10

Sessions

OngoingMonthly reviews

Recovery

N/A

Price

From £600/monthConsultation from £150

All compounds sourced exclusively from GMP-certified, EMA-regulated and FDA-registered compounding pharmacies. Certificate of analysis on every order. Not licensed medicines under the Human Medicines Regulations 2012.

Semax, Selank, Dihexa, NAD+, GHK-Cu and all compounds discussed are not licensed medicines under the Human Medicines Regulations 2012. The Catalyst Clinic provides medical advisory consultations only. Nothing on this page constitutes a treatment recommendation or medical advice.
GMP-Certified Pharmacies EMA-Regulated & FDA-Registered Certificate of Analysis GMC-Registered Physicians Mandatory Diagnostics PhD-Level Oversight

The Journey

Your 6-Step Protocol

Diagnostics before everything. A physician who reads your results personally. Clinical oversight that continues for as long as you are with us.

Step 01

Cognitive Biomarker Panel

Full diagnostics including thyroid function, cortisol, sex hormones, inflammatory markers, and metabolic panel — all of which directly influence cognitive performance and mood.

  • Complete Blood Count
  • Thyroid function panel
  • Cortisol and stress markers
  • Sex hormone profile
  • Inflammatory and metabolic baseline

Step 02

Compound Selection

Dr. Ethan reviews your results personally and identifies which neuropeptide compounds are relevant to your cognitive profile, stress patterns, and neurological goals.

  • Cognitive performance assessment
  • Stress and cortisol pattern review
  • Thyroid and hormonal influence mapping
  • Contraindication and safety screening
  • Goal-specific compound matching

Step 03

Bespoke Cognitive Protocol

A fully personalised advisory protocol. Compounds may include Semax, Selank, Dihexa, Cerebrolysin, and NAD+ depending on your diagnostic profile and goals.

  • Personalised compound selection
  • Dosage and cycling rationale
  • Delivery method guidance
  • Sleep and lifestyle integration
  • Full protocol documentation

Step 04

Induction & Education

A structured induction ensures you understand every element — the neuroscience, the compounds, the expected timeline, and the monitoring process.

  • Full protocol walkthrough
  • Neuropeptide mechanism education
  • Administration guidance
  • Sleep and lifestyle integration
  • Open Q&A with Dr. Ethan

Step 05

Strategic Cycling

Cognitive protocols designed with careful cyclicity to prevent receptor adaptation, maintain neurotransmitter homeostasis, and optimise long-term neurological outcomes.

  • Prevents receptor adaptation
  • Maintains neurotransmitter balance
  • Supports natural neurological feedback
  • Optimises long-term outcomes
  • Adjusted as cognitive profile evolves

Step 06

Ongoing Monitoring

Monthly reviews and repeat bloodwork track hormonal, thyroid, and inflammatory markers. Every adjustment data-driven, documented, personally made by Dr. Ethan.

  • Monthly progress reviews
  • Hormonal and thyroid tracking
  • Protocol refinement based on data
  • Cognitive progression assessment
  • Full clinical documentation

Compound Research

Compounds Under Investigation

Compounds discussed within the Cognitive & Mood Protocol may include the following, subject to your individual diagnostic profile.

Semax

Studied for BDNF upregulation, dopaminergic activity, and neuroprotective effects in preclinical models.

Selank

Researched for anxiolytic activity, GABA modulation, and stress resilience in animal models.

Dihexa

Explored for hepatocyte growth factor pathway activation and synaptic plasticity research.

NAD+

Studied for neuronal energy metabolism, sirtuin activation, and cognitive function research.

GHK-Cu

Researched for neuroprotective gene expression modulation and anti-inflammatory activity.

Cerebrolysin

A peptide mixture studied for neurotrophic activity and neuroprotection in preclinical and clinical research settings.

All compounds are subjects of ongoing scientific research. None are licensed medicines under the Human Medicines Regulations 2012. No claims of established human efficacy are made or implied.

Why The Catalyst Clinic

London's Most Clinically Rigorous Protocol

The only cognitive-focused peptide protocol in London personally designed by a physician with a PhD in Cell and Genomic Biology and nearly 20 years of peptide research experience.

01

Thyroid & Hormonal Panel

Cognitive health is profoundly influenced by thyroid function, cortisol, and sex hormones. We test all of them first.

02

Neuroscience Background

Dr. Ethan's PhD in Cell & Genomic Biology means your neuropeptide protocol is grounded in molecular neuroscience, not guesswork.

03

Pharmaceutical Grade

GMP-certified, EMA-regulated, FDA-registered pharmacies only. Purity confirmed by certificate of analysis on every order.

04

Published Author

Two published works in peptide science. No other cognitive peptide clinic in London is led by a published peptide researcher.

05

No Fixed Stacks

Neuropeptide combinations assessed individually based on your thyroid, cortisol, hormonal profile, and stated goals.

06

Continuous Oversight

Monthly reviews and repeat bloodwork throughout. Cognitive protocols adjusted as your hormonal and neurological picture evolves.

What The Protocol Covers

Physician-Led.
Data-Driven.

The Cognitive & Mood Protocol explores neuropeptide compounds studied in the scientific literature for their potential roles in BDNF upregulation, neuroplasticity, stress modulation, and neuroprotection.

The Catalyst Clinic operates within a fully regulated private medical framework. All clinical programmes are physician-led, diagnostics-based, and subject to ongoing medical oversight by US and GMC-registered physicians. Mandatory diagnostics before any programme begins — including thyroid, cortisol, and full hormonal panel.

"Cognitive function is downstream of biology. Fix the biology first — thyroid, hormones, inflammation — and the cognitive picture often shifts with it."

Dr. Ethan Hausman-Marquis

  • PhD, Cell & Genomic Biology — Karolinska Institute, Stockholm
  • US & European Board-Certified, Regenerative Medicine
  • Member, American Academy of Anti-Aging Medicine (A4M)
  • Author — Peptide-Based Cancer Therapies
  • Author — Exploring the World of Peptides
  • Nearly 20 years specialist peptide research experience

Common Questions

Frequently Asked

A physician-led advisory programme exploring neuropeptide compounds studied for their potential roles in cognitive function, neuroplasticity, mood regulation, and neuroprotection. Begins with comprehensive diagnostics including thyroid, cortisol, and hormonal panel, and is personally designed by Dr. Ethan Hausman-Marquis around your individual biomarker profile.
Compounds discussed may include Semax, Selank, Dihexa, NAD+, GHK-Cu, and Cerebrolysin depending on your diagnostic results and goals. No fixed stack is applied — every protocol is built around your bloodwork.
The protocol is frequently sought by individuals researching neuropeptide science in the context of stress resilience, mood regulation, and cognitive performance. Suitability is assessed individually based on your full diagnostic profile including cortisol and thyroid function.
It is the only cognitive-focused peptide protocol in London personally designed by a physician with a PhD in Cell and Genomic Biology and nearly 20 years of peptide research experience. No other London clinic brings this depth of neuroscience expertise to neuropeptide advisory consultations.
Programmes start from £600 per month, including mandatory diagnostics, a personally designed protocol, pharmaceutical-grade compounds, and ongoing monthly reviews. Initial consultation from £150.

Begin Your Programme

Every programme
begins with
your data.

Ready to explore the current science around cognitive peptides within a fully physician-led framework? Begin with a discovery consultation — in person at our Kensington clinic or remotely, anywhere in the world.

Every Programme Includes

  • Mandatory pre-consultation bloodwork
  • Thyroid, cortisol & hormonal panel
  • Personal review by Dr. Ethan
  • Pharmaceutical-grade compounds only
  • Bespoke protocol — no templates
  • Injectable pen delivery
  • Monthly physician reviews

96 Kensington High Street, London W8 4SG
Remote consultations available worldwide

Regulatory Notice

The peptide compounds discussed within this protocol are not licensed medicines under the Human Medicines Regulations 2012 and are not approved by the MHRA for human use. The Catalyst Clinic provides medical advisory consultations only. Nothing on this page constitutes a treatment recommendation, prescribing guide, or medical advice. All compounds sourced from GMP-certified, EMA-regulated, and FDA-registered compounding pharmacies.