I recommend JuYoung NS Joint En Chondroitin 1200, my personal joint supplement.

Since some time ago, whenever I lift heavy objects or go hiking for a long time, my knees would ache. So, I purchased and am taking Juyoung NS Joint Enchondroitin 1200. You just need to take 2 tablets with water once a day. I've been taking it for about two months, and it seems that the knee ache during long hikes has decreased. I think it will get better with continued use. I recommend this product.