Been reading up on this and seems to work.
Prices all over the place - up to $88 including delivery (on ebay!): https://www.google.com.au/shopping/product/13750367918706830…
Next cheapest I found is $18 including delivery - which is about the same if only buying one bottle.
I bought 2 bottles plus one Klorane Shampoo With Camomile 200mL, postage came to $7.95 to our NSW address.
There's a few variations available around the same price but offer dates a little different:
Klorane Shampoo With Camomile 200mL http://www.towers.net.au/shop.asp?id=3164&action=viewproduct…
Klorane Gentle Shampoo with Oat Milk 200mL http://www.towers.net.au/shop.asp?id=5015&action=viewproduct…
Klorane Nourishing Treatment Shampoo 200mL http://www.towers.net.au/shop.asp?id=5010&action=viewproduct…
Klorane Shampoo with pomegranate 200mL http://www.towers.net.au/shop.asp?id=5008&action=viewproduct…
Is this "Head and Shoulders" above the competition? (at between $10 to $18 a bottle, depending on the quantity bought)