Can it be used on colored patterned items and denim?

Both Rinenna #1 and #2 can also be used with colored patterns.
Rinenna is a detergent that focuses on protein stains on the body and does not easily fade, but there is a risk that the color will fade if the dye has not penetrated properly into the fibers themselves (clothing with low fastness).
(For clothes with low fastness, the color may fade even if you use other detergents.)
For colored clothing that you are concerned about fading, we recommend testing it on an inconspicuous area first.