We're addicted to tanning and want to look 'crispy' we'll do anything for darker skin but trolls say we need help Amazon.com : Masofta Anti Gray Hair Darkening Serum Reverses & Limits Hair & Beard Graying with Arcolys, Melano Gray, for Promoting Darker, Shinier Hair and Beard, For Both Men & Women, Nasal sprays containing the 'Barbie Drug' melanotan are very, very dangerous and completely unregulated, according to leading dermatologist. Experts say there has been a surge in the use of the illegal tanning aid Reversing Gray Hair: Inspiring the Development of New Therapies Through Research on Hair Pigmentation and Repigmentation Progress Going gray isn't a one way trip? UAB researcher exploring ways to 'rejuvenate' gray hairs UAB Reporter