Secret Beauty!! Bigen Black Hair Dye Description Hair Application for natural look on your hair. Qty: STD Bigen? Permanent Powder Hair Color Contains No Ammonia Its beautiful and true-to-life color is long lasting. Bigen gives your hair a rich and natural look that covers gray elegantly. Easy application... just mix the powder with plain water. No Heavy masking odor. Economical... you can use as much Bigen powder as you need. The rest can be kept for the next application.