Both are younger women and looking at the picture, hormone coincidence doesn't explain this complete change of straight to curly and blond to dark brown. My son went from stick straight hair to soft beautiful curls when he hit puberty so I understand what you are saying.

Editing to add, what if there is both sex dna in these injections and it starts to change the gender by DNA. Is that possible? Was it male DNA that caused her hair loss or was it the poison of say, heavy metals?