all® free clear Mighty Pacs® are 100% free of perfumes and dyes with concentrated cleaning power in a convenient pac. all® free clear is the #1 recommended detergent brand by dermatologists, allergists and pediatricians for sensitive skin. These hypoallergenic Mighty Pacs are Tough on Stains, Gentle on Skin. all® free and clear Mighty Pacs® are unscented, fragrance free, and are safe to use in any washing machine including high efficiency (HE) and they dissolve completely even in cold water. Add pac to washing machine drum before adding clothes. Use one pac for small and medium loads or two pacs for larger loads then wash as usual. all® Mighty Pacs are safe for septic systems and contain no phosphates.