Can the Multi Plus Collagen be used in hot drinks? I've tried it in cold, and it had no flavor, so I'd like to try it in my coffee.

Collagen protein can be safely added to hot coffee, as brewing temperatures are usually below the point at which collagen proteins break down. 

The initial degradation of collagen is 572° F. while coffee is typically brewed to around 185° F, so it doesn't damage the collagen content.

It can also be added to buttered or bulletproof coffee, though it may not provide additional benefits. Also, please make sure that the powder is dissolved properly and evenly before drinking.

To order this product, please check this link - https://painlessnutritionals.com/shop/multi-collagen-plus/