Have an allergy in the house here to talc-based body (baby) powders. But this seems to be all that is readily available, except on a few occasions having seen Johnsons Corn Starch powder in Megamaxi, but not for a while (and the price!). Shipping or carrying it here in luggage is doable, but not in any quantity.
Other than buying food corn starch from the grocery store (which doesn’t work) can anyone recommend an EC or reasonably priced S. American brand and a store where you can find it? We travel to the coast and Cuenca, so any source known would help.