Brain fog is a symptom with many possible causes, and identifying the contributors comes first. At PHI in Beverly Hills, board-certified physicians Dr. Faisal Lalani and Dr. Nadiv Samimi offer NAD+, peptide, and IV therapy as supportive optimization alongside your primary care, once underlying factors like sleep, hormones, and nutrition have been evaluated.
When Your Mind Doesn’t Feel Like Yours
Brain fog has a particular quality that is hard to describe to people who have not experienced it. The sense that your thinking is slower than it used to be. Words that do not come as easily. Trouble holding a complex idea in your head while you work on it. Reading the same paragraph three times. Walking into a room and forgetting why.
Most people experience occasional cognitive fuzziness. Persistent brain fog, the kind that affects work performance, daily life, and your sense of yourself, is something different. It is often dismissed as stress, age, or just life. Sometimes that is accurate; often there is something more identifiable contributing. What we offer is the supportive optimization side of cognitive care, and we are honest that the most important first step is identifying contributors. For some patients, addressing specific causes resolves the brain fog without direct cognitive interventions.
What Brain Fog Actually Is and Isn’t
Brain fog is a symptom, not a diagnosis. It describes impaired mental clarity, slowed thinking, difficulty concentrating, or memory problems, and it can come from many sources.
Common causes that often resolve with appropriate intervention include chronic stress, poor sleep quality, nutritional deficits (B12, vitamin D, iron and others), hormonal changes (perimenopause, menopause, andropause, thyroid dysfunction), medication effects, post-viral syndromes including long COVID, depression and anxiety, dehydration, and excessive alcohol use. Causes requiring specific medical evaluation include significant new cognitive decline (particularly in older adults), cognitive changes alongside other neurological symptoms, changes following head injury, and sudden severe cognitive changes; these warrant primary care or neurological evaluation rather than wellness intervention. The first step is identifying which category your situation fits.
What This Page Is and Isn’t
PHI is an interventional pain and regenerative medicine practice. We are not neurologists, primary care physicians, or specialists in cognitive disorders. For patients with brain fog, comprehensive care typically involves primary care evaluation (to assess for thyroid dysfunction, vitamin deficiencies, sleep disorders, hormonal issues, and other contributors) and specialist evaluation when specific concerns warrant.
PHI’s role is supportive optimization through specific medical interventions that may complement broader care. We do not replace your primary care for cognitive concerns; we add specific options that may help alongside addressing underlying contributors.
How PHI Approaches Brain Fog
The first step is a comprehensive evaluation: a detailed history of your cognitive symptoms and how they have changed, discussion of potential contributors (sleep, stress, hormones, nutrition, medications, recent illness), review of any prior workup, and an honest assessment of whether wellness optimization fits your situation or whether primary care evaluation should come first.
For patients where wellness optimization is appropriate, options include NAD+ therapy, a coenzyme involved in cellular energy production that declines with age, with evidence for cognition we describe as emerging rather than established; peptide therapy, where specific peptides may support cognitive function and sleep, with bloodwork performed at consultation before any peptide is prescribed and without listing specific compounds publicly; and IV therapy, particularly useful for patients with documented nutrient deficits such as B12. These treatments are delivered in a clinic setting under physician supervision, not in the Surgical Suite, and we coordinate with your primary care physician for evaluation of underlying contributors.
Why PHI for Brain Fog Optimization
Two board-certified physicians
Dr. Faisal Lalani and Dr. Nadiv Samimi both trained in interventional medicine at Cedars-Sinai and bring medical rigor to wellness optimization.
Honest framing
We do not oversell wellness interventions for cognitive symptoms. We discuss the evidence honestly and recommend treatments only when they fit your specific situation.
Coordination with primary care
PHI’s role is supportive optimization, not primary cognitive evaluation. We coordinate with your primary care physician rather than working in isolation.
Bloodwork before peptides
For peptide therapy, we perform bloodwork at consultation before prescribing, and tailor recommendations to your specific situation rather than offering packaged programs.
Tailored recommendations
Each patient gets recommendations matched to their specific cognitive symptoms, suspected contributors, and goals.
Concierge, coordinated care
Single-physician continuity from consultation through treatment and return to activity. Patients receive clear guidance and transparent pricing at consultation.
Frequently Asked Questions
For some patients, yes. The mechanistic rationale is sound. NAD+ is involved in cellular energy production and declines with age, and some patients report meaningful improvement in mental clarity and energy. Others do not experience significant change. We are honest that the clinical evidence for NAD+ specifically in cognitive function is emerging rather than established.
Generally yes. Most patients with persistent brain fog benefit from primary care evaluation including thyroid assessment, B12 and other vitamin levels, hormonal evaluation when appropriate, sleep assessment, and review of medications. Identifying and addressing underlying contributors often produces more improvement than wellness interventions alone.
For patients with documented vitamin deficiencies, particularly B12, IV nutrient therapy can produce meaningful improvement. For patients without specific deficits, the cognitive benefit is more variable. We evaluate whether IV therapy fits your specific situation rather than offering it as a default.
This varies by treatment and underlying contributors. NAD+ may produce noticeable effects within days to weeks for responders. IV nutrient therapy may produce effects within hours to days when addressing specific deficits. Peptide therapy varies by the specific peptide. Sleep and stress optimization may take weeks to months for cognitive improvement.
Post-viral cognitive symptoms are real and increasingly recognized. Some patients experience improvement with supportive interventions. Long COVID care typically involves coordination with primary care or specialty providers familiar with the condition, and PHI’s offerings may complement this broader care for selected patients.
Yes, often. Hormonal changes around perimenopause and menopause commonly include cognitive symptoms. For women in this transition, hormonal evaluation and management, often through your primary care or gynecologist, typically addresses cognitive symptoms more effectively than wellness interventions alone.
This warrants primary care or neurology evaluation rather than wellness intervention. If you have concerning cognitive changes, particularly with patterns suggesting early decline, please pursue appropriate medical evaluation. PHI is not the right starting point for these concerns.
Insurance coverage and payment options may vary. Please contact our office to discuss your specific plan, available options, and pricing. All pricing is disclosed at consultation.
Yes. PHI regularly treats patients from outside Los Angeles, including Las Vegas, Palm Springs, London, and other international locations.
Treatments We Offer for Brain Fog and Mental Clarity
PHI offers supportive optimization treatments for cognitive function. Your physician will recommend the right options based on your specific situation, suspected contributors, and goals.
- NAD+ Therapy
- Peptide Therapy, bloodwork at consultation before prescribing
- IV Therapy, most useful when a nutrient deficit is contributing
Schedule Your Brain Fog Consultation
A 60-minute consultation will evaluate your specific cognitive symptoms, walk through whether wellness optimization fits your situation or whether primary care evaluation should come first, and recommend treatments that match your situation. Call (310) 856-9488 or book online now.