pulled this up on their website: Ingredients: Dimethyl Glutarate, Dimethyl Adipate, Methyl Oleate/Palmitate/Linoleate/Stearate, Trideceth-8, Lavandula Officinalis Flower Oil, Proprietary Vitamin Blend - A, C & E: PEG-8 Dimethicone, Octyldodecanol, Tocopheryl Acetate, Retinyl Palmitate, Ascorbic Acid & Silica, Sodium Propoxyhydroxypropyl Thiosulfate Silica

Has anyone tried this on powder dipped nails?

Works best on real nails and regular nail polish. Does not remove gel.

Do you leave the remover on your nails until they are dry or do you wash off with soap and water?

I only need to leave it on for a few minutes, wipe off with a cotton ball, and then wash with soap and water. I am very happy with this product. It does not dry out my nails like other Acetone Free removers. Highly recommend!

Would this work to remove Piggie Paints brand nail polish?

The first time I used this, I removed Sally Hansen nail polish without issue. It should work well with Piggie Paints too. I must say, compared to Curex or other 'toxic' nail polish removers, this stuff is amazing! It doesn't have too bad of an odor, and it did not sting or dry out my fingernail beds.