Vanessa tried the Moonshine Hydrating Primer by JUNO & Co after seeing numerous ads for it. She applied it over her sunscreen and noticed an immediate difference in her skin's appearance, describing it as glowy and refreshed. She also mentioned that the primer can be worn alone or under foundation, and she loved the filtered effect it gave her. Overall, Vanessa highly recommended the product, urging others to go and get it. While the review does not mention any drawbacks or specific benefits of the primer, it emphasizes the positive impact it had on Vanessa's skin, making it a promising option for those looking for a hydrating primer.