n. the responsibility of manufacturers, distributors and sellers of products to the public, to deliver products free of defects which harm an individual or numerous persons and to make good on that responsibility if their products are defective. These can include faulty auto brakes, contaminated baby food, exploding bottles of beer, flammable children's pajamas or lack of label warnings. Examples: Beauty Queen Hair Products makes a hair-permanent kit in which the formula will cause loss of hair to women with sensitive scalps, and Molly Makeup has her hair done at the Bon Ton Beauty Shop and suffers scalp burns and loss of hair. Molly has a claim for damages against Beauty Queen, the manufacturer. Big Boy Trucks makes a truck with a faulty steering gear, bought by Tom Holdtight. The gear fails and Holdtight runs off the road and breaks his back. Holdtight can sue Big Boy for the damages. The key element in product liability law is that a person who suffers harm need prove only the failure of the product to make the seller, distributor and/or manufacturer reliable for damages. An injured person usually need only sue the seller and let him/her/it bring the manufacturer or distributor into the lawsuit or require contribution toward a judgment. However, all those possibly responsible should be named in the suit as defendants if they are known.