Lower section of tibia on both legs in the same spot is very dry. not painful but itchy on occasion. my lotion will not absorb into these areas anymore. the lotion just sits on top of that skin. is there something i can use to get better absorption?

Try using OTC cortisone cream for a few weeks then switch to a thicker substance like olive oil

Could be eczema or mild psoriasis - no way to tell without seeing it. I would try an OTC lactic acid lotion (common brand names are Amlactin and Cerave). If that doesn't work, you will need to see a dermatologist for a proper evaluation and treatment.