Final answer:
The likely cause of the considerable breakage is using chemical treatments too frequently.
Step-by-step explanation:
The likely cause of the breakage that the client experienced days after leaving the salon is using chemical treatments too frequently. Chemical treatments, such as perms or relaxers, can weaken the hair strands and cause breakage if used too often. When these treatments are applied frequently, they may strip the hair of its natural oils and protein, making it more prone to damage.
It's important to give the hair time to recover and strengthen between chemical treatments to prevent excessive breakage. Additionally, using high-quality hair products, not applying too much heat, and following post-salon hair care instructions can also help reduce breakage and maintain healthy hair.