I have heard of this, however never tasted @joelai perhaps if I see the concentrate I will try taste it next time.
Nice to know how the fruit reveals the pieces inside, actually a pretty indicator, thanks for nutritional information.
Inner skin has a soft texture with nice colour, do they use that for dying of clothing or any other particular use?
I read that in Indonesia, the peels were the source of natural dye for textile colouring. Mangosteen has so much usage that we don't even know of or even imagine.
So many plants are used in such a wide variety of ways, nothing goes to waste.
That's the wonder of these fruits.