Squalane helps to deliver osmotic vitamin C derivative deep into the skin where it actively combats free radicals and melanin which causes dark spots.It also has vitamin E to improve blood circulation.Osmotic Vitamin C derivative has better permeability than water soluble vitamin C derivative.It penetrates the skin deeply through its pores, and into parts below the stratus corneum where it works for long hours.It also helps tighten pores, control sebum secretion and promotes collagen production and elastin growth.Functions of Osmotic Vitamin C Derivative.Controls free radicals that cause sunburn and dark spots.Controls the activity of Tyrosinase, an enzyme that produces melanin.