my beard gets brighter, even some blonde hairs during summer...
so its sun related for me
however my buddy started growing some grey hairs in his beard and even on his head when he started using tren.
and hes only 23
he was always looking a couple years older but now people estimate him to be in his late 30s when hes actually just 23 lol
My hair and later beard started out blonde and has gotten darker with age, my hair is brown now and my beard is pretty much black.I like the dark beard better as I always thought a blonde beard or moustache on people kinda looked stupid.