True or False: Fatty acids and oils can replace the lack of natural lipids in the hair to help avoid dullness.

The statement that fatty acids and oils can replace the lack of natural lipids in the hair to help avoid dullness is indeed true, making the correct answer actually 'A'. Fatty acids and oils are essential in providing moisture, enhancing shine, and improving the overall health of the hair by mimicking the natural lipids that contribute to its vitality. When the hair lacks these natural lipids, which can occur due to environmental damage, chemical treatments, or heat styling, introducing fatty acids and oils can create a protective barrier, reducing moisture loss and promoting a more lustrous appearance.

The incorrect answer would be 'B', as it suggests that fatty acids and oils do not help replace the natural lipids which is misleading. Furthermore, while the statements regarding usage with heat or specific applications to colored hair may have some contexts in which they are relevant, they do not address the fundamental properties of fatty acids and oils in replenishing moisture and enhancing shine in hair overall. Thus, recognizing the benefits of incorporating these ingredients into hair care practices helps fight dullness and improve hair texture.