Hello
Pineapple Enzyme is available and suitable for use. Because the nature of the action is Immediate but short-acting and is not stable in water-based formulations. If mixed with any product containing water It will deteriorate before it can act on the skin.
Natural Betaine is not suitable for that formula. Because it takes time to absorb into the skin and act. which, if it is in the formula that is washed The mixture will not be able to take effect before it has been washed off. so not suitable