Plantur 39 caffeine shampoo for fine brittle hair 250ml bottler until menopause a womans hair roots are protected based on high levels of female hormones oestrogen after menopause these hormone levels will decline and the impact of male hormones will increaser the consequencer the hair will grow thinner fall out prematurely and the scalp will become visibler the caffeine in these shampoos prevent the hormone induced exhaustion of hair production during hair washing the activ