(TrendHunter.com) The brand Just For Men® has developed a new grooming item called Gray Reverse™, a daily-use anti-aging hair serum formulated to address the emergence of gray hair through a chemical process…(TrendHunter.com) The brand Just For Men® has developed a new grooming item called Gray Reverse™, a daily-use anti-aging hair serum formulated to address the emergence of gray hair through a chemical process…