コラーゲンンンン means collagen, which supplements human colloid and is generally used for beauty, making skin elastic and young.
How to take it should be on the packaging. Generally speaking, 1 daily eye dose x-rays 1 daily eye safety x-rays or similar sentences, that is, about x-rays every day. Because it is not a therapeutic drug, the dosage is not strict, so the word "about (eye dosage/eye safety)" is used.