The Vegan Collagen Lash Serum Primer by Pacifica receives high praise from Bella in her video review. She describes it as a great lash serum and mascara primer that flawlessly applies and holds curls. Bella also appreciates the glass bottle and the quality of the brush. Overall, she highly recommends this product. The Vegan Collagen Lash Serum Primer by Pacifica seems to offer multiple benefits, including effective lash serum properties and a primer that enhances mascara application. However, the review does not mention any potential drawbacks or limitations of the product.