@RandomUser yes I was thinking the same thing, since a sign of hypothyroid is little 4c curls in your roots or in ur hair, I used to have ALOT of those. and my hair became curly when I was at peak shit health.
@Mauritio the serum I use has Niacinamide as its main ingredient, I would rather diversify supplements and routes to see whether I can even out the aggressive fall/winter hair shedding.