What is most likely the reason a client complains of pain and lifting after applying primer?

The most likely reason a client complains of pain and lifting after applying primer is due to the application of too much primer. When excessive primer is used, it can lead to an uneven surface, which increases the likelihood of lifting as the product may not adhere properly. Additionally, too much primer can create a thicker barrier that doesn't allow for proper drying or bonding, ultimately causing discomfort for the client.

The concentration of primer used needs to strike a balance—enough to promote adhesion without overwhelming the nail surface. When applied correctly, primer should enhance the bond between the natural nail and any subsequent products, minimizing the chances of lifting and associated pain.

Though insufficient drying time, low-quality primer, and improper application technique can contribute to similar issues, the immediate and direct consequence of too much primer tends to manifest as pain and lifting. Therefore, maintaining proper application amounts is crucial for the success of the manicuring process.