I'm very pleased with the results of the Bigen Cream Color 4-0 Dark Brown. It's easy to use and covers my gray hair flawlessly. The color looks natural and lasts well. Plus, the smart saving feature is a nice touch.

I had mixed results with the Bigen Cream Color 4-0 Dark Brown. The color turned out fine, but I experienced some uneven coverage on my gray hair. It's an okay option if you're in a pinch, but I've used better products.

I've tried many hair colors, but the Bigen Cream Color 4-0 Dark Brown is one of the best. It's easy to apply and provides good coverage for my gray hair. The color lasts reasonably long, and I appreciate the smart saving feature.

I've been using the Bigen Cream Color 4-0 Dark Brown for a while now, and I'm loving it. It's super easy to apply, and the color looks amazing. It covers my gray hair perfectly, and the smart saving feature is a great bonus.

The Bigen Cream Color 4-0 Dark Brown is a great option for quick and easy hair coloring. It covers my gray hair nicely and delivers a rich, beautiful color. Plus, the smart saving feature is a money-saving bonus.