Can ox horn comb cure grey hair?

Ox horn comb can not cure grey hair

But long-term use can promote blood circulation in the head. This is because the horn comb teeth in the head back and forth gently crossed, can stimulate the nerve endings, through the cerebral cortex to regulate the head nerves and let the head tense state be relaxed, so that the hair follicles, sebaceous glands, sweat glands to get full nutrition, to prevent the hair nutritional deficiencies and lead to long grey hair, yellow hair, and hair loss, so often correctly use the horn comb on the scalp and prevention of grey hair, yellow hair, etc. have a positive effect.