Is Fancl's collagen tripeptide useful? Which is better than DHC?

These two brands are the best-selling brands in Japan. If we only look at the collagen content, DHC is better. However, the so-called collagen oral liquid actually has no effect, but is converted into amino acids in the digestive system. It is best to use Imetide from Pfizer. Instead of imposing collagen on you, it helps you synthesize collagen through one of its own patented ingredients, which is much more reliable than the two you mentioned.