ScarGuardMD 1oz/30ml

Are there any tricks for applying this so that it doesn't flake off? maybe i'm putting it on too thick? or too thin? or my skin is too oily? help!

how much hydrocortisone is in this?

Difference between scarguard md and scarguard repair liquid?

Directions read not to use an area with hair such as eyebrows or hairline. Will this product destroy the hairline?