A definite "yes" to resveratol, and an "almost sure" to ferulic acid. Both of these are excellent actives that we are not selling yet because we have been so busy.
A definite "no" to ascorbyl tetraisopalmitate and the many other fatty acid derivatives of ascorbic acid, because the chemical modification of ascrobic acid also takes away its great properties (as vitamin C and other benefits to the skin).
I have to look up Laminaria saccharina extract. It is an algae and most algae have something good to give us, but unless it is really special we can't add it. We do not want to bring about too much duplication.
Colostrum: this is the first milk of the cow, and it is great for the calf because it provides antibodies against common germs that the calf cannot fight yet with its immature immune system. As far as I know it brings nothing useful to skin care.