1. Hormone changes and beard growth
During hormone-fueled teenage years is when most of us start to see facial hair appearing. This is because testosterone and DHT are being produced, both of which trigger the growth of a beard, and the more of these hormones you have the bigger and fuller your beard will be. On the other hand, if their levels start dropping as you get older you could see your beard start to thin and fall out.
2. Diet and hair loss
If you’re not eating a well-balanced diet and are missing out on vitamins and minerals, this could be the cause of your facial hair loss. A lack of B-vitamins, vitamin D, A, K2, and E all play a big part in hair growth, alongside zinc, magnesium, and calcium. So, make sure you’re getting enough of all of them every day. Be aware that there’s limited evidence to suggest that supplements actually promote hair growth. Find out more about the link between vitamins and hair growth.
Your beard can also be affected by sudden diets where calorie intake is reduced dramatically, meaning that you don’t have as much energy in your body and growing facial hair is no longer a priority.