Rosemary Shampoo Bar - D R Harris London

One bar has lasted me over three months of daily washes, and the lather is so thick that a tiny rub goes a long way. It's genuinely simplified my routine, and the tin keeps it from making a mess in my gym bag.

The metal tin is a nice touch—it survived a weekend in my toiletry bag without any crumbly mess, which is more than I can say for other bars I've tried. One little bar has lasted me over two months, so the economy claim checks out.

The aluminium tin makes this perfect for tossing in a carry-on, and honestly the lather is so rich that a tiny bit goes a long way. My hair feels clean without that stripped, squeaky dryness I usually get from bars. It's become my go-to for weekends away.