The only time it ever flakes on me is when I use too much on one spot, but I really have to over do it for that to happen. It's usually a small area that maybe a little glob of it didn't get spread and I wet my finger, smooth over it and it's gone. I don't use anything under it. I apply gel to my hair in three sections and I probably use a quarter sized amount on each section.

I vaguely remember using a Volumaxx gel from Sally's that if I wasn't super careful would flake pretty bad, but never had that issue with the Bioterra.

Byron,GA> Charleston, SC> Jacksonville, FL> Guilford, CT> Rohnert Park, CA! A southern drawl in sunny Cali! .
The amount of time from slipping on the peel and landing on the pavement is exactly one bananosecond.
I do have a secret yen for pink in unexpected places. ~ninja dog
I've decided that I'll never get down to my original weight, and I'm OK with that--After all, 8 pounds 2 oz. is just not realistic.