To try and reduce acne, Marilyn used Zit Zap for a trial period of 10 days. The range of her data would be 10 as she tried for 10 day to see the results.
It is serum which is used to prevent and cure acne.
The serum contains high oleic acid content which helps to balance sebum production and also assist in regeneration of new cells.
It helps to fed scars and blemishes and also prevent clogging of pores.
To learn more about acne :
https://brainly.com/question/13203684
#SPJ2