Why Your Hair Is Thinning—and What Actually Helps

Noticing more hair in the shower drain? Or a wider part line? Hair thinning can feel scary—but it’s more common (and more fixable) than you think.x

Let’s break down the real reasons your hair might be thinning, how to tell the difference between stress-related and other causes, and what actually works to treat it.

Stress Hair Loss vs. Everything Else

Stress-related hair loss is called telogen effluvium. It often hits 3–4 months after a big stressor—like illness, surgery, extreme dieting, or emotional burnout.

🔍 Signs it might be stress:

  • Hair sheds in clumps

  • Thinning is all over (not patchy)

  • It starts suddenly, then slowly gets better over time

Other common causes of hair loss include:

  • Hormonal shifts (thyroid issues, PCOS, menopause)

  • Nutrient deficiencies (iron, B12, zinc, vitamin D)

  • Autoimmune conditions (like alopecia areata)

  • Androgenetic alopecia (genetic, progressive thinning)

Knowing why your hair is thinning is key to treating it effectively.

When Minoxidil Might Help

Minoxidil is a topical treatment that helps increase blood flow to hair follicles and stimulate growth. You might know it by brand names like Rogaine.

✅ It can help if:

  • You have genetic thinning (like a widening part or receding hairline)

  • You're in the early stages of hair loss

  • You’ve recovered from stress hair loss but need help boosting regrowth

🚫 It’s not as effective for scarring alopecia or severe nutrient-based hair loss—so figuring out the why matters.

At Preston’s, we offer both over-the-counter Minoxidil and custom compounded versions that may be stronger, less irritating, or easier to apply (like foams or serums).

What Labs Can Tell You

Before jumping into treatments, it’s worth checking what’s going on under the surface.

Ask your provider about lab tests like:

  • Thyroid panel (TSH, Free T3, Free T4)

  • Ferritin (iron stores)

  • Vitamin D

  • B12 and Folate

  • Testosterone and DHEA (especially in women with PCOS symptoms)

Lab work helps rule out underlying causes, and tailor your treatment—so you’re not wasting time (or hair).

Let’s Get to the Root of It (Literally)

Thinning hair doesn’t always need medication—but it does need a plan.

💊 Ask us about:

  • Minoxidil and compounded hair regrowth options

  • Functional labs to uncover root causes

  • Targeted supplements that support hair from the inside out


Hair loss is frustrating—but treatable. We’ll help you figure out why it’s happening and what to do next Click here to reach out to us


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