Answer: it really depends on the product you are trying to sell if it's a toy then the target audience would be children and if it is a pot then the target audience would be professional cooks. personally I would pick children because they are easy to persuade
Explanation:
Careful is already a adjective so keep that.
There are many adjectives for change but what suits the best here is “changing”.
Careful changing is the best I could find.
Hope that helped
