Detailed answer

When selecting a foundation for whitehead-prone skin during pregnancy, it's important to choose a product that is oil-free and non-comedogenic to prevent clogged pores. Look for foundations that contain salicylic acid, which is safe for use during pregnancy in low concentrations, as it helps to exfoliate and unclog pores. Avoid foundations with high levels of salicylic acid or other potentially harmful ingredients. Additionally, consider opting for mineral-based foundations, which are less likely to irritate the skin and can provide a lightweight, breathable coverage. Remember to always consult with your healthcare provider and patch test any new skincare product before regular use.