Grecian Formula
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Grecian Formula ® is a popular men's hair coloring product in the United States. It is made by Combe Incorporated in White Plains New York, and is also known as Grecian Formula 16. It is available as a clear liquid, cream and a foam. It was first introduced in 1961 and is still made.
One of the product's main features is that it works gradually, so the color change is not as noticeable as with dye products. This is because it isn't really a dye, but a metallic dye-like product. The product is actually 98% clear liquid, 0.29-0.34% lead acetate and a small amount of sulfur. The product both coats and penetrates the hair shaft, and the lead acetate reacts with the sulfur to produce a dark black pigment. Over time, the small particles of black pigment add up, resulting in darker hair. To adjust the darkness, simply use more or less of the product.
Some of the drawbacks are that it doesn't work well with facial hair, and it must be used daily which some people find inconvenient. Also, the only color available is shades of black.
