Chemical hair dyes overcome all the disadvantages of the vegetable dyes, such as they require short exposure time on the hair, provide natural colour, are obtainable in many shades, and are water-proof or shampoo-proof. However, the biggest disldvantage of the chemical dyes is that they may have an adverse effect on some skins.
The symptoms of such ill-effects are violent itching all over the scalp which starts soon after the dyeing or any time within 48 hours after dyeing. This is quickly followed by swelling of the scalp, the ears, the eyelids and also the face. Should such a misfortune happen to you, do not be too upset. The swelling will go down rapidly and the eczema is cured quite quickly if the correct treatment is given. You should immediately consult a dermatologist.
If your hair is getting grey try darkening it with sage leaves. Make a strong ‘infusion with the leaves by mixing about 4 tablespoons to one cup of water. Apply this water to the hair roots every day, and you will find a magic change after some days. When the desired colour is obtained use it once a week.
The other way to use leaves is to mix the infusion with kaolin to make a paste. Apply this to the hair and leave it on for about half an hour, then wash it off. To increase the darkening effect mix in it tea instead of water.