What is the difference between porcelain and composite veneers?

Porcelain veneers are custom-made in a lab, extremely durable, highly stain-resistant, and last 15-20 years. They require removing more enamel and take 2-3 visits. Composite veneers are applied directly in one visit, more affordable, and reversible, but last only 5-7 years and are more prone to staining. Most patients seeking a long-term transformation choose porcelain.