I'm going to go out on a limb for this post, as I almost never do, and state that Dinair's Colair Xtreme is the most underrrated revolutionary product to come out of the beauty industry in recent years.
Colair Xtreme is an extremely highly pigmented foundation line created to block out and conceal anything from tattoos to discoloration of hyper pigmentation on the body and on the face.
The product applies very quickly, and its coverage power is so high that you don't need to color correct to even out the area before application. This allows you to save considerable time and money, but if that wasn't enough, you also get another amazing advantage: durability. Xtreme is extraordinarily resistant to rubbing, and totally water proof. As a result, the coverage will last pretty much intact until you take it off. The formula is water based, and can be mixed with or topped by any other Dinair product.
Using Colair Xtreme in beauty or corrective makeup is very easy, and good results can be achieved by anyone. Because of its high blocking power, the final effect will tend to look very uniform, something which may not be always ideal if you are striving for the most natural look, but keep in mind that you can use it on the affected area only and then top it with any other Dinair foundation. I would also avoid using this product over symptoms of an active skin condition such as flaring acne or flaking psoriasis. In theses cases you may want to consider other Dinair Lines more suitable for these purposes, such as Camouflage/Paramedical or even the more basic Glamour line. However if you are looking for something that will block out a situation such as a birth mark or a tattoo, Xtreme will be the most effective choice, and a professional makeup artist will know how to break up the seamless finish created by this product with the necessary contouring and highlights, or even by recreating the original skin intrinsic coloring with translucent paints.
Which brings us to the world of Special Effects. If you are a professional makeup artist, you may have heard of PAX Paint, the mixture of Pros Aide glue and acrylic paint that is used in special effects and movies to achieve the most resistant coverage. Because of its very nature, PAX is not the healthiest choice for prolonged use and it is certainly a huge pain to clean from the airbrush afterward. Xtreme is a very viable cosmetic alternative to PAX that is much safer to use and much easier to remove from your tools using Dinair's standard Airbrush Cleaner. As we said before this product can be mixed with or topped by any other beauty product. In special effects it will allow you to lay the base color on prosthetics incredibly fast, and won't budge when painted over with any other makeup, including alcohol based colors.
I really hope that both the beauty and the SFX world will realize soon the incredible potential that this amazing formula represents, and that the line will be expanded from the current 14 colors to match the full range of foundations available from Dinair.