Sierra, a reviewer on Flip, highly recommends the Back to School: 28 Day Immunity Wellness Shot Pack by Pulp & Press. According to Sierra, these wellness shots are one of the best purchases she has made on Flip. She describes them as an easy and delicious way to incorporate fruits, greens, and vitamins into her daily routine. Sierra has been taking these shots for a month and feels fantastic. She urges others to give them a try. Overall, Sierra's review highlights the convenience, taste, and positive impact of the Back to School: 28 Day Immunity Wellness Shot Pack by Pulp & Press.