I am selling 2 packs of collagen supplement "Milcolla" from renowned japanese brand Suntory. It is in powder form and comes in 5000mg per pack. I have 2 packs extra from my japan trip and im clearing them at $40 per pack now.
It can be taken in many forms, its possible to add into your daily beverages, plain water your cooking, or even when you are having your meals outside, simply mix the collagen powder into your drinks or food.
This is the offical website of Milcolla, its in japanese but u can translate it using google translator.