No ..That won't help.
But using henna with added tea leaves can help to colour your hair.
Pantothenic acid , PABA and
calcium can help in some cases.But frankly premature greying is a very difficult condition to treat.
Colouring is the best option
Next Steps
Consult a good hair stylist and choose a colour that matches your hair
Health Tips
Avoid strong colours . It is better to test for allergy to hair colour before starting .
Medical non allergic hair colours like YES I CAN are available which you can try.