Castor oil is a vegetable oil pressed from castor beans and has a colourless or pale yellow appearance.

Source: https://metro.co.uk/2023/08/19/beauty-fans-snapping-up-this-amazon-castor-oil-for-longer-lashes-19341745/

Dogs worked the rubble, and their occasional bark – used to alert their handlers to a possible corpse – echoed over the hot and colourless landscape.

Source: https://www.alloaadvertiser.com/news/national/23719213.death-toll-maui-wildfire-hits-93-making-deadliest-us-fire-100-years/?ref=rss

SmartWater is a colourless liquid solution which can be applied to the surfaces of belongings and valuables.

Source: https://www.eveshamobserver.co.uk/news/be-smart-to-take-action-and-deter-burglars/

This follows the detection of ethylene oxide, a flammable colourless gas with sweet odour, said to be potentially cancer-causing, in Indomie’s “special chicken” flavour noodles by health officials in Malaysia and Taiwan.

Source: https://punchng.com/cancer-scare-nafdac-begins-test-on-indomie-noodles/