The best mild detergents are those that are considered safe and gentle enough for use on baby clothes, for example, Dreft, Seventh Generation and All Free and Clear. Because babies have sensitive skin, they tend to react to any detergent that is the least bit harsh.
Mild detergents that are free from any perfumes and dyes are especially likely to be useful for anyone with sensitive skin. Dreft detergent is formulated for babies' sensitive skin and rinses clean without leaving any residue. Seventh Generation Baby Laundry Detergent is hypoallergenic, biodegradable, non-toxic and free of any dyes or perfumes. All Free and Clear is recommended by pediatricians, dermatologists and allergists and is also free of fragrances and dyes.