Eco-House - Xmild Citrus Thinner - 8oz - Eco-House Extra Mild Citrus Thinner is a medium-strength, general purpose thinner and mild solvent. It is a combination of highly purified cosmetics-grade hydrocarbons and food-grade essential oils. Eco-House Extra Mild Citrus Thinner combines the solving action of natural orange peel oil in food quality with highly purified mineral oils, which are 100% volatile and free of aggressive aromatics.