There is a Lebanese soap stand/booth at Royal Plaza. I think they have a branch at the City centre too. I can't recall the name. They sell all natural soaps. There's a soap shop at LAndmark too. Both of them are a bit pricey!!! I think it's about Qrs. 25-30 for a bar of soap. Just incase you're in dire need of it. I'm sure it's much cheaper in Manila.