Take natural extracts of stonecrop, horseradish and rosemary oil, but dont use aggressive chemicals. It sounds like a recipe from days gone by, and in fact Weledas Revitalising Hair Tonic has been helping customers since 1921. Weve tested it today and it works, thanks to key ingredients that maintain scalp health, carry nutrients to the hairs root and make every hair stronger. Science proved what experience taught us long ago and a new generation now gets the benefit!