1. Hormone Testing (Estrogen, Progesterone, Testosterone)

Testing reproductive hormones gives us insight into how your cycle is functioning and what stage of perimenopause you may be in.

Typical tests include:

• Estradiol (E2) – the most active form of estrogen
  
  
• Progesterone – often the first hormone to decline, contributing to symptoms like poor sleep, anxiety, and heavy periods
  
  
• Testosterone – important for libido, muscle mass, energy, and mood
  
  

Timing matters:
We typically recommend testing estradiol and progesterone between Days 19–21 of your cycle (if cycles are still regular). If you’re no longer cycling consistently, we assess based on symptoms and trends over time.

2. FSH and LH

Follicle-stimulating hormone (FSH) and luteinizing hormone (LH) are released by the brain to regulate ovarian function. In perimenopause, FSH levels begin to rise as the ovaries become less responsive.

These tests are helpful to:

• Confirm the transition into perimenopause or menopause
  
  
• Understand how well the brain-ovary communication is functioning
  
  
• Rule out early ovarian failure in younger women
  
  

Note: These levels can fluctuate wildly in perimenopause, so we don’t rely on a single reading for diagnosis.

3. Thyroid Panel

Thyroid dysfunction is common in midlife women—and symptoms of hypothyroidism (like fatigue, weight gain, hair thinning, and depression) can easily mimic or overlap with perimenopausal symptoms.

We recommend a full thyroid panel, not just TSH:

• TSH (thyroid stimulating hormone)
  
  
• Free T4 and Free T3 (active thyroid hormones)
  
  
• Thyroid antibodies (TPO, TgAb) to check for autoimmune thyroid conditions
  
  

Identifying and supporting thyroid imbalances is critical for restoring energy, mood, metabolism, and hormonal balance.

4. Cortisol and Adrenal Function

Cortisol is your main stress hormone, produced by the adrenal glands. Chronic stress, poor sleep, or burnout can lead to dysregulation—either too much or too little cortisol—which impacts your ability to handle hormone shifts.

We use:

• Salivary or urine cortisol testing (DUTCH test) for full-day patterns
  
  
• Morning serum cortisol for baseline adrenal function
  
  

Why this matters: high or low cortisol can worsen hot flashes, anxiety, brain fog, and blood sugar issues.

5. Blood Sugar and Metabolic Health

Insulin resistance often increases during perimenopause due to lower estrogen levels, which affects how your body stores fat and uses glucose.

We test:

• Fasting glucose and insulin
  
  
• HbA1c (3-month blood sugar average)
  
  
• Lipid panel (cholesterol, triglycerides)
  
  

Why it matters: Unstable blood sugar and inflammation can drive hormone symptoms and increase the risk for heart disease and type 2 diabetes.

6. Inflammatory Markers

Chronic low-grade inflammation contributes to fatigue, pain, mood disorders, and hormone imbalances.

We may check:

• C-reactive protein (CRP)
  
  
• Homocysteine
  
  
• Ferritin (iron storage, also an inflammatory marker when elevated)
  
  

Balancing inflammation is key to improving resilience and energy during this transition.

7. Nutrient Status

Certain nutrients are vital for hormone production, detoxification, and nervous system support.

Common tests include:

• Vitamin D – critical for mood, immunity, and hormone health
  
  
• Vitamin B12 and folate – involved in energy and neurotransmitter production
  
  
• Iron studies (ferritin, serum iron, TIBC) – particularly important for women with heavy periods
  
  
• Magnesium and zinc – essential for stress response and cellular function
  
  

Even borderline deficiencies can worsen perimenopausal symptoms.