How come a client who already has very porous and chemically treated hair should not have another full head bleach and straightening service?

The reasons a client that has very porous and chemically treated hair has been instructed that he/she cannot have any further bleach or straightening services are because of the following:

1. These services will cause severe, irreversible damage to the hair.

2. These services may possibly cause the hair to break and fall out in clumps.

3. These services will most definitely sacrifice the integrity of the hair.