The amenities the ship's stateroom is just as in any hotel. Mini-fridge, phone, TV, coffee maker (not in inside & ocean view staterooms), ice bucket, beach towels, mini-safe, hair dryer, liquid soap and shampoo.
They soaps & shampoos are some generic brand that and the cabin stewards refill the dispensers.
I would suggest packing your own favorite brand of soap and shampoos in your luggage.
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