Pro Plan Optiderma Adult Sensitive Skin Small & Mini Complete food for adult small breed dogs with sensitive skin. Purina Pro Plan Small & Mini Adult Sensitive Skin with OPTIderma contains all the nutrients a dog needs to meet its needs plus nutrients for the support of healthy skin and a shiny coat. Optiderma contains a specific combination of nutrients targeted to the skin such as protein sources from amino acids, essential fatty acids, vitamin B, and zinc that are proven to support healthy skin and a shiny coat. To help reduce the risk of skin irritations, the diet contains carefully selected protein sources such as salmon, corn, soy, dried egg, rice, dried beet pulp, and yeast.