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. Use with all free clear fabric softener and dryer sheets for clean and soft clothes with static cling reduction in the dryer. 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(s) to washing machine drum before adding clothes. Use 1 pac for small and medium loads or 2 pacs for larger loads then wash as usual. all mighty pacs are safe for septic systems and contain no phosphates. This pack contains one pouch of 25 all free clear mighty pacs, enough for 25 regular loads of laundry.