We chose Cetaphil as verified cleanser for MeLuna cups because it's easily available at grocery stores all over the US.
Third party lab testing has shown that it rinses off completely (unlike soap) for a residue free cup.
It also is gentle enough to not impact the cup or reduce its lifespan.
While the bigger bottles are easily available the travel size is sometimes hard to get so we are offering it for your convenience:
the 2oz Cetaphil. Small enough to keep in your glove compartment, purse or backpack!