CBD can break down and become toxic with light and/or oxygen exposure. The FDA says that CBD in food, dink, or supplements is illegal, without FDA approval. PURA's illegal activity and ALKM's co-packing of illegal product could come under FDA scrutiny.
Why CBD Water Is Not Really A Thing And May Even Be Dangerous
"Cannabinoids are susceptible to degradation and specifically oxidization which is very concerning, as some of those degradants are toxic.
That means CBD in a clear water bottle stored on a brightly-lit supermarket shelf is most likely completely useless and provides no other benefit than the regular hydrating effect of plain water.