Sometimes CBD oil may change colour or turn a little hazy. In most cases, this is nothing to worry about. It is not uncommon for CBD oils to change colour to shades of pink or brown; if your CBD oil has shifted to these colours, it is still safe to consume.
CBD changing colour is usually caused by a simple reaction to heat and light. For example: high-quality CBD is rich in a nutrient called polyphenol oxidase; when exposed to sunlight, the polyphenol oxidase may turn a shade of rosy pin.
Slightly hazy CBD is usually caused by CBD being stored in the refrigerator. When left to warm back up to room temperature it should return to its clear state.