3. The more twists and kinks in your hair, the less shiny it looks
This is really where natural hair falls. There is a distinct difference between a curl where hair can form spirals and kinky curly hair where hair does not tend to clump up. The more your hair can clump up, the shinier it appears because the hair fibres follow in the same direction and direct the light falling on them back in a uniform way. However, hair that does not clump up will direct light in different directions leading to less shine. Therefore straight, wavy or curly hair where hair fibres tend to align with each other look shinier. Kinky curly hair which tends not to clump up appears less shiny.
So is shine an indicator of hair health?
No it is not. A very high shine means that your hair is clean, darker, elliptical and not very kinky. For naturals who straighten their hair, they may find that their hair appears much shinier and darker when straightened compared to when unstraightened.
If you are seeking extra shine to your hair and your hair is very kinky, the artificial way (i.e oil) may be the path for you. Castor oil is a noted oil for giving hair sheen as are silicones including amodimethicone (J. Cosmet. Sci, pp 335–351,2003)
Ladies, do you associate shiny hair with healthy hair? Do you seek to achieve shiny hair?