Adjuvant Cartridge 700ml for Shampoo x2 New, Unused Not sold separately ADJUVANT / Adjuvant (for shampoo) 700ml Easy to use, just set the refill eco-pack. How to use: 1. Fold the refill eco-pack at the line and push it into the bottle. 2. Cover the bottle with the bottle cover, push it down, and turn the bottle to set it. 3. Turn the pump head to the left, and the pump will rise. Press the head a few times to dispense the contents. Instant purchase welcome This is a sale on Mercari, so If you are concerned, we recommend purchasing from a hair salon. This sale is only for those who understand everything. Thank you for your understanding. m(_ _)m