You walk into the kitchen and forget what you came for. A word you use every day disappears halfway through a sentence. You reread the same paragraph three times and still cannot take it in. It is easy to laugh these moments off, but when they keep happening, they can be frustrating and unsettling.
I hear versions of this often. “Is it my hormones?” “Am I just stressed?” “Should I try something for my brain?” These are fair questions. My answer starts with a bigger one: What has changed in your life and health, and what might be contributing?
Brain fog is a description of an experience, not a diagnosis. There is no single test or supplement that explains everyone’s symptoms. The most useful next step is to put the pieces together.
Start with sleep, stress, and the rhythm of your day
You can spend enough hours in bed and still wake up unrefreshed. Night waking, hot flashes, insomnia, or a sleep disorder can affect how well you focus the next day. Stress and mood matter, too. If your mind has been carrying a lot, concentration can feel like one more task that takes extra effort.
I also ask about the ordinary details that are easy to miss: when the fog started, whether it follows a particular time of day, what your meals and caffeine habits look like, and whether a medication or supplement changed around the same time. These questions may reveal a pattern that a single lab number cannot.
Hormone changes can be part of the picture
For many women, the years around perimenopause include changes in sleep, mood, and concentration. Forgetfulness and difficulty finding words are commonly reported. That does not mean every episode of brain fog is caused by hormones, or that it should be dismissed as “just menopause.” Symptoms that are new, worsening, or disruptive deserve a thoughtful evaluation.
This is also where expectations about testing matter. We may consider targeted labs based on your history and symptoms, including checks for other possible contributors. But hormone levels fluctuate during the menopause transition, so a routine hormone panel is not always the answer to whether you are in perimenopause or why you feel foggy. The conversation and clinical context come first.
Where do Selank, Semax, and Dihexa fit?
These three peptides have drawn attention in discussions about the brain. It is reasonable to be curious. It is also essential to ask what kind of evidence supports a claim: laboratory work, animal research, small human studies, or well-designed trials that actually answer the question you care about.
For brain fog in particular, I would not treat any of these names as a proven shortcut to clearer thinking. The FDA has identified safety-information gaps and potential compounding risks for these substances. For dihexa acetate, the agency says it has not identified human exposure data for drug products containing it. For selank acetate and semax, it describes concerns or gaps involving safety information and potential immunogenicity for certain routes of administration. That is a meaningful part of the conversation, especially when online marketing sounds far more certain.
The questions I would want you to ask are simple: What human evidence exists for my specific concern? What do we know about safety and product quality? What else should be evaluated first? And how would we know whether any proposed approach is helping?
A more useful starting point
At Ascent Health Center, we begin with you. We look at your symptoms, health history, sleep, stress, nutrition, medications, and the changes you have noticed over time. When testing is appropriate, it should answer a specific clinical question. From there, we can discuss a personalized plan and follow your progress, adjusting it as we learn what actually helps you.
That approach takes more curiosity than chasing a promise in a social post. It also gives you a better chance of understanding what your body is asking for.
If you would like to learn more, join me for Peptides 401: Clearing the Fog: A Look at Peptides, Hormones & Your Brain, a free virtual webinar on Thursday, November 12, from 4:00 to 5:00 p.m. Mountain Time. We will talk about common contributors to brain fog, how to think about labs and hormone testing, and what the research and FDA information really say about Selank, Semax, and Dihexa. Bring your questions.