Is Indigo Dye Okay for Sensitive Skin, Is it Safe Enough to use on Baby Clothes?

Q: Is natural indigo safe to use on baby clothing and accessories? I was hoping to dye some onesies and swaddles with the indigo.

A: In all my years of experience researching and working with Indigo, I have never heard of any allergies or even cautions for humans for any age regarding the natural indigo pigment molecule. The kits have been used at many a baby shower and dyed countless onesies, blankets and sheet sets.