Christina, in her video review, introduces the Fixline Eyeliner Gel in White Rabbit color by OFRA Cosmetics as a solution for achieving trendy liner looks seen on Instagram and Pinterest. She praises the gel liner's consistency, finding it easy to work with and ideal for creating smooth lines. Christina demonstrates the product's pigmentation, noting that it provides a solid white line and doesn't lift when layered with glitters. She suggests that the eyeliner is versatile, suitable for spring looks and can be paired with pastel shadows. Overall, Christina is pleased with the product, emphasizing its ease of use and the opaque shape it delivers. She invites viewers to share their thoughts on the look.