Stage 2 Mix-Ins is the continuation of Stage 1 Mix-Ins and will continue to maintain the exposure to peanut, egg, and milk. Stage 2 Mix-Ins will be a combined mixture of all 3 allergens. It is recommended to sustain exposure for at least 2+ months, or until your little one consistently eats solids so that you can start Stage 3 Mix-Ins Mix-Ins.