Final answer:
The statement is likely an excerpt from a hair care product advertisement. Hair growth occurs inside a follicle through the division of stem cells. The rate of hair growth is about half an inch per month or 6 inches per year.
Step-by-step explanation:
The statement "It'll make your hair grow!" is likely an excerpt from a hair care product advertisement. Hair growth occurs inside a follicle, where stem cells divide and produce new keratinocytes. The rate of hair growth is about half an inch per month or 6 inches per year. This information is supported by various scientific studies on hair growth.