Hand Wash
The starter kit is the pump bottle plus two powder refills. It is what you buy once. After this you buy refills only, because the bottle is already by the sink.
The bottle arrives empty. There is no first fill of ready-made soap inside it. The bottle holds 300 ml and is the durable part of the system.
How it works. Fill the bottle with water from the tap. Add the whole sachet. Close it and shake for a few seconds. If it looks cloudy, let it stand a minute while the powder finishes dissolving. Add the water first, or the powder clumps at the bottom.
What one kit gives you. Each refill makes one full 300 ml bottle, so two refills are 600 ml of finished hand wash. That is roughly two months for one person.
Why powder. Ordinary liquid hand wash is mostly water. Shipping that water is what this format avoids, and the pump bottle stops being a repeat purchase.
What is in it. Natural sugars and a hyaluronic acid derivative. Both are humectants, which means they hold moisture in the skin.
Refills are sold separately in twos: Hand Wash Refill.