growing and development of hairline in infants

hi CS and ImmortalHair crew,

Having had my second newborn in the last few years surely makes me a careful observer of how the hair develops in infants. What I notice is deviations among the populations when passing the kindergarten.
You can see bald kids to their 2y old, and hairy fellas already in first year, almost instantly.

I notice there is unique inflammatory items, items as Cradle Cap formations. In our case being highly related to the how well an infant adapts to the food supply, that is not milk.

That said it is likely Malassezia fungal at play, as these formations are easily reversed with mildly ozonated olive oil or coconut oil. For the second also internally.

Despite of it, the inflammatory part i do not see play a dominant role in hairline formation.

I wonder if there is any knowhow related to hormonal and other health-relevant insight to maximize the density of the hair, and influence development towards a positive overall outlook.

To some extent maternal hormones might play at role in the early stages, such as estrogen stimulating fetal hair growth. Postnatal, these hormone levels drop creating a transient hair shedding (telogen effluvium) in infants.

I remember quite some time ago in a research paper remarking that an association between severe maternal heartburn during pregnancy and babies born with more hair. This is likely due to higher levels of estrogen and progesterone, which can stimulate both fetal hair growth and relax the esophageal sphincter, contributing to heartburn.

However, this does not establish a direct link between stomach acid and hair growth--so probably a side-effect somehow of having these higher hormone levels.

Naturally there is the microbiota.......Antibiotics of any kind probably creates implications on some level.

Low iodine levels in pregnancy might indirectly affect hair quality by disrupting the keratin production and follicle development required for healthy hair growth. Zinc levels and vitamin D along with essential fatty acids.

Overall still a lot of mysteries.