speaking of herbs: nettle leaf

i have another fav herb, nettle leaf aka stinging nettle. i read that it's a hair growth stimulant + i can co-sign from experience that it helped me w/ my seasonal allergies. my allergies used to hate on me so bad, like can i live? i haven't found widespread scientific research on why it counters allergy symptoms but a random study confirmed it + it seemed to work for me some way, somehow. the congestion + sinus irritation went away after steeping + drinking as a tea consistently. i added it to my conditioner once too.