Here are the important tips, if followed, could help you regain your hairline that would add volume to your beauty;
Scalp treatments can help increase blood circulation, oxygen and nourishment to the follicles, a good scalp massage stimulates blood circulation to the scalp. Hair follicles need blood circulation in order to grow a strong, healthy hair. When a single hair falls out, another one will grow in its place. If the follicle continues to receive good blood circulation, the hair will grow healthy and strong like the one it is replacing but, if it is not receiving blood circulation, it will not be quite as strong and will not be able to grow as long in length as the previous one.
A cup of green tea a day keeps the hair healthy and strong, the truth about this saying refers to the fact that green tea helps stimulate hair growth, however make sure the green tea you drink is decaf. Topical green tea with caffeine has been shown to help remove dht, and stimulate hair growth, but oral/dietary caffeine actually increases free testosterone levels, and also stimulates stress hormones, both of which will lead to more hair loss. So stay away from dietary sources of caffeine.
Are you using styling gel in your hair? If so this may be the cause, or it may be the hair glue.
When you make your weave make sure that too much stress is not put on your hairline. Do not braid up the hairline...I cannot stress this enough it could be causing traction alopecia stress will make crown hair fall out , you can have your weave installed and can blend in your hairline by smoothing it down also apply your essential oils mixture, tie a silk/satin scarf around your hairline for about 15 minutes. This will lay down your edges nicely the oil will stain the scarf, but this method is worth it.