Would Minoxidil shedding be less prominent if I start using it after my seasonal shed?

That’s an insightful question. It’s true that seasonal shedding, especially in the summer, can lead to more hairs entering the telogen (resting) phase, and you’re right to wonder if starting minoxidil after this period could reduce the initial shedding phase associated with it. In theory, starting minoxidil after your seasonal shed might mean fewer hairs are in the telogen phase, which could result in a less prominent minoxidil-induced shed.
However, it’s important to understand that minoxidil works by accelerating the hair cycle, pushing telogen hairs into the shedding phase to stimulate new growth. While waiting until after a seasonal shed might lessen the overall shedding, you could still experience some shedding as minoxidil encourages new growth.
If you’re concerned about shedding, starting minoxidil gradually, applying a lower dose, or using it in combination with finasteride (which targets the hormonal cause of hair loss) could help ease you into the treatment with minimal shock to your system.