Hello!

My daughter is a natural dirty blonde with gorgeous almost white-blonde highlights. Since she's only five I don't want to dye her hair, but I would like to bring out those highlights more. Has anyone used the chamomile rinse for this? I thought about doing the lemon water and sitting in the sun, but it's January in Germany and there's almost no sun ever.

Very grateful for any tips!

Chamomile rinses will emphasize the yellow in your daughters' hair.  It basically stains the lighter hair with the yellow.  Lemon juice and sitting in the sun will dry the hair out and can be quite damaging.  

In my opinion, a 5 year old's hair is probably its prettiest when left its natural color.