Mary Claire Haver

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806 appearances 2 recordings 1 series first heard Sep 2026 last heard 15 Sep

Mary Claire Haver’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 2 in all, peaking in Sep 2026 with 2.

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unPAUSED with Dr. Mary Claire Haver · Menopause Masterclass: Why Your Hair Is Thinning and What Works · 15 Sep 2026 podcast

Okay.

The baseline, the bottom of normal is normal.

30, okay?

Normal still goes up to 100 or higher.

So when we're talking about hair, most hair specialists want to see that ferritin at least 40 to 60, okay, if not higher.

Some prefer the 70 to 100 range for optimal hair support.

So if the ferritin results are borderline or confusing, you may want to get a full iron panel, including a serum iron, a TIBC, which is total iron binding capacity, and the iron saturation.

This can really help clarify whether iron deficiency is actually present.

And in general, an iron saturation above 20% is considered to be reassuring.

So number two, thyroid testing.

It doesn't just measure TSH here.

Here we're trying to get really, really specific.

TSH is thyroid stimulating hormone.

TSH is produced.

in the brain, and it talks to the thyroid gland to create this T3 and T4 hormones that go out into the body and do their work, and the T3 is converted to T4 in the periphery.

I'm getting in the weeds here.

TSH, a lot of clinicians will only order a TSH, and then it'll do a reflex T3 and T4, but most people who...

diagnosed hair loss, and I think it's attributed to hypothyroidism, want to go ahead and get all the labs up front.

So, and then with TSH is best around 0.5 to 2.5, rather simply within range specifically for the hair follicle.

Number three, vitamin D. Vitamin D, vitamin D, you hear me talk about vitamin D all the time.

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