It's very important to know if the hair fall is acute or chronic and also if how many hair strands you loose in a day As 100 hair is normal to fall everyday..
If it's acute you should get your Vitamin D3 and vitamin B12 checked and thyroid profile checked. Taking some oral biotin supplement like tab Keraglow Eva (men)once a day for 1 months.
Applying hair joy foam every day twice a day in scalp will also help the hair fall.
For early greying their is very few options but you could try Tab Curlzvit once a day for 3 months.
Hope this helps
Dr Batul Patel