A pack of hair color costs something like $10 at your local store. One problem solved. (If someone has good tips for coloring beard, I'd like to know.)
My guess is that if you want to apply to an organization that uses formal screening process, you're off worse. Networking is the word of the day and if you have a lot of previous work experience, you might already have a professional network. Use it, and sidestep the screening. If not, build your network. Participate in groups, attend conferences, etc. Be active, social, and ambitious, in the right way. Create your own projects, team up, work hard. Target smaller companies that may be more flexible about their hiring practices.
Previous accomplishments are not necessarily a proof of anything, the problem is that everyone can boast about their accomplishments, so nobody pays attention to them if they don't know you, but school grades are official and considered "objective". So, your accomplishments only matter to people who know about them - mainly your network.
Of course, you must be able to develop yourself to the tip of your field. You need to show that you have experience about the field - perhaps write a professional blog, or something, be social. Younger people often have more ambition than us older guys, and you have to rebuild that ambition in yourself, even though I know it can be hard. Be proactive, smart, and develop something bright.
'nuf of pep talk. More booze, sleep.