Silskin Cosmetics is advertising its newest line of eye make$-$up$.$ Made from all natural ingredients, the products are hypo$-$allergenic. Silkskin is selling the products in specially designed tubes that make easier to apply to the skin. Which of the following is the core product value for Silskin's line of eye makeup?

A$.$

The natural ingrdients.

B$.$

The Silskin brand.

C$.$

The products' revolutionary packaging $.$

D$.$

The possibility of having beautiful eyes.