Can i take collagen or whitening supplements while breastfeeding?

I’m currently close to 3 months postpartum and still breastfeeding every 5 hrs. My skin has become so dry and dull.😭 Can i take collagen or whitening supplement? I’m looking at brands such as Kinohimitsu, Purest Co and AFC Tsubaki. #breastfeed #skin #WHITENING #COLLAGEN