Hi just want to find out if there is any solution for the darker skin between the thighs. Please help my daughter she is 30yrs and really embarrassed.?

Natural! Darker skin occurs in both sexes; women and men, in areas that are rich with sex hormone receptors. That not only incudes sexual organs, but also adsjacent areas including the upper inner thigh. Check and see if the pigmentation lightwen as you go toward the inner knee. I'm sure. There are many skin "bleach" or lightening agents that work. Best bet here!