The short answer: how to clean a faux leather couch is simple, and the mistake most people make is treating it like leather. Faux leather is a polyurethane coating on a fabric backing, which means it has no pores. Real leather conditioner is designed to soak into pores; on a faux surface it has nowhere to go, so it sits on top as a film that attracts dirt and accelerates the peeling you were trying to prevent. Baby oil and petroleum jelly, which several guides recommend, are worse for the same reason. Clean it with a barely damp cloth and three or four drops of mild dish soap in a litre of warm water, rinse with a second cloth, and dry immediately rather than letting it air dry. Then protect it from UV, which is what actually kills it.
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