When my hair fell out after the birth of my first child, I didn’t even notice until I bumped into my dermatologist at an event and she gasped. Clearly, the state of my hair wasn’t the first, second, or even third thing on my mind.

When Kirbie Johnson’s hair started shedding, “I would have to vacuum my bathroom floor at least every other day,” she says. Her dog was “hawking up hair balls”—her hair balls, a little gift that neither of them particularly wanted. Johnson, 39, is the co-host of the Gloss Angeles podcast and writes Ahead of the Kirb, a beauty Substack. In other words, she knows the territory.