Renay raves about the Stay In Line Lip Liner in Royal color by Jason Wu Beauty in her video review. She loves that it is a 3-in-1 product that can be used on the lips, eyes, and cheeks. According to Renay, the lip liner goes on smoothly and feels nourishing on the lips. She appreciates its versatility and the fact that it can be used on multiple areas of the face. Overall, Renay's review suggests that the Stay In Line Lip Liner is a high-quality product that provides a nourishing and smooth application. However, she does not mention any potential drawbacks or negatives about the product.