This happens because collagen is naturally "hydrophilic," meaning it loves water, but the surface tension of very cold liquid can sometimes prevent the powder from dispersing quickly
I could only conclude that this is basically just a healthy drink
Templeton, N., Dean, J., Reddy, P
Technical Specifications Technical Specifications Minimum Detection Limit3.763 g/mL Linear Range12.5-400 g/mL Reagents and Equipment Required but Not Provided Reagents and Equipment Required but Not Provided Analytical balance, mortar/homogenizer, low temperature centrifuge, water bath, adjustable pipette, spectrophotometer/microplate reader, micro glass cuvette or 96 well flat-bottom plate and distilled water