I'm continuing to look into collagen use and seeing that Type 2 is the one that is supposed to be primarily for joints. Initially it sounded like Type 1 and 3, which is a more common product, was the way to go. I will continue to use that and if it works, I should possibly see some difference in my skin, which was one of the main reasons I was taking it.
When the stuff I'm using is gone, I'll switch to one with at least Type 1, 2 and 3 collagen. There are some that contain collagen type 1-5, but those also contain Biotin, Hyaluronic Acid, and Vitamin C.
The vitamin C sounds like a good thing but I'm not sure of the other 2 things. The biotin sounds like a good thing, but is at a dose of 10 mg, which is 33K+ percent of the recommended daily allowance. It seems that 10K mg is a standard sized dose, but that amount seems like a lot to me relative to the % Daily Value. If I Google it, it says it's generally safe up to 300 mg/day, so confused as to why 10 mg is considered so much higher than the Daily Allowance %.
There is no recommended daily value for Hyaluronic Acid. The claim for that is -
"Hyaluronic acid is a natural substance found in the fluids in the eyes and joints. It acts as a cushion and lubricant in the joints and other tissues. Different forms of hyaluronic acid are used for cosmetic purposes. Hyaluronic acid might also affect the way the body responds to injury and help to decrease swelling."
There is of course the question of whether taking something translates to your body being able to use it. For example, if I wanted more hair, eating hair wouldn't help me grow more hair.