The minimum duration for a life insurance policy free look period will vary by the state in which you live.
However, most states require a 10, 15, 20, or 30-day free look period.
But, I have heard that some insurers offer up to a 60-day free look period on certain life insurance policies offered in certain states.
The free look period means you have that period of time after purchasing the life insurance policy to return it to the insurance company for a full refund of all premiums paid, should you decide you no longer want to continue the insurance.