[hirenj]

We don’t know is the answer. However, if you were coral, then I would suggest increasing the amount of symbiotic algae, which stimulates mucin secretion (probably a nutrient boost).

A brain normally doesn’t receive enough sunlight for this strategy to work for humans.

[gattr]

A few decades from now, in the biohacker/modder community: "Recap your noggin with our reinforced-glass-ceramic dome!".

[UnreachableCode]

Algae omegas possibly?

[moffkalast]

Mount LEDs inside the skull, got it.

[aruggirello]

Or replace bone with glass, ending up like those famous crystal skulls from Mexico. But algae might then bloom and grow in uncontrolled fashion. You'd need plancton then, and maybe krill or even fish too - enter skull aquariums.

[bamboozled]

More time in the sun ? :)