♪ there's a lot of splishing and splashing going on in hotel room showers in las vegas, but these new ones are no ordinary showers. >> the mgm grand expanding the number of rooms that allow you to splish and splash in vitamin c infused water. abc's nick watt checks it out. ♪ >> reporter: here in sin city, you are apt to marry a stranger, lose it all on red and now take a shower infused with vitamin c. ♪ hallelujah >> i'm serious, a vitamin c shower. i'm having one right now. it is counteracting the chlorine in the water. >> chlorine is an oxidant and is known to damage the hair and skin and having vitamin c in the water counteracts that. >> reporter: not to ward off a winter sniffle or a dose of pirate scurvy.