This handmade soap contain goat's milk, shea butter, hand-ground, high-grade bamboo charcoal from Japan, and cedar essential oil. All ingredients are animal cruelty free, safe and nontoxic, readily biodegradable, and free of artificial color. Good for sensitive skin and sufferers of dermatitis, psoriasis, eczema. 3.5" diam. Other properties attributed to bamboo: naturally occurring anti microbial and anti-fungal properties that make it like an antibacterial soap; require no fertilizers, pesticides or insecticides to grow, therefore it has no harmful residues left on it from the non-sustainable, chemically damaging cultivation that other plants may require.