This is one of the home remedies that we learnt about while in Karesuando. It is a hair tonic and shampoo made from Birch leaves and when used regularly, it treats scalp conditions, promotes hair-growth and generally conditions the hair.
It is very easy to make.
You collect Birch leaves in August in Karesuando (so maybe during September in the UK) put them in a jar with an air-tight top.
You then add warm (NOT HOT) water and leave to cool for about 8 hours, shaking periodically. After 8 hours you remove the leaves and it’s finished.
You only require a small amount in your hand when you wash your hair, but it does not lather!!
Laplander's Natural Lore Blog 
Wow! This is great! Really like to try it. But living in the Netherlands, I think I have to wait for one more month, too…
living in the USA (KY) would the leaves need to be green or already turned their fall colors?
Hi Cammie,
They need to be taken when they are green, but close to the time when they will begin to change colour. I have no idea why!
Thank you so much for sharing this! I made a vat of it yesterday. Probably I waited too long, as my leaves were starting to turn gold.
Our Birch leaves are falling from the trees now so we will have to wait until next year to make more.