Green polypropylene vials with reversible child resistant caps offer an opaque packaging choice for pharmaceuticals, CBD products, and more. The child resistant caps feature printed opening and closing instructions on the top and durable LDPE plug liners, which offer added barriers against air and moisture. Dual purpose caps can be closed against the outer threading of the plastic vials to create a child resistant seal. The caps can also be closed upside down for a non-child resistant seal for medications with lower risk of being ingested by children.