I know there is a size requirement for deodorant, is there a specific size of bodywash or shampoo that we are allowed to bring, and do we use this during indoc weeks, i just want to know what i should bring now or get later, im trying to travel light
The size requirements are only for inspection items (issued). I don't think anyone cared about size/brand/etc of any 'daily use' items as long as it all fits into the toiletries bag you bring. Just don't have anything that's heavily scented - you don't want to make class team do a double take when they walk in front of you and smell something 'pretty'.
And don't plan on getting too much soap on during indoc phase, you probably won't have time for it.
While we're talking about bathroom stuff, I do recommend bringing your own towel. And splurge, get a nice, white one. It'll be one of the few nice things you can have there.