Gentle on Baby’s Skin. Tough on Baby’s Messes. You want the best for your baby and so do we! Purex Baby Soft™ liquid laundry detergent is powerful on stains and extra gentle on your little one’s sensitive skin. A safe and effective detergent that leaves your baby’s clothes fresh and clean with a soft baby scent. Dermatologist approved. Hypoallergenic and dye-free.