Most vitamin C serums will claim that 'vitamin C' is the unique ingredient that causes skin to look fuller, firmer and absolutely radiant. We have to tell you the truth - vitamin C is an extremely unstable ingredient. In fact, it takes a lot of work to formulate a stable form of vitamin C and get it onto your skin, through the deepest layers.
You should know... if the vitamin C you apply is not stable, your skin will not benefit. Simply put, unstabilized vitamin C has already been oxidised before you put it onto your skin. Think of an apple - when the apple is left in open air it goes brown, when the vitamin C is not stabilised it turns orange or brown and is used up before you even apply it to your skin. If the vitamin has been used up - it will not do anything to help your skin look bright and feel firm. It is wasted.
Dermalogica's Biolumin C Serum however, contains an Ultra-Stable Vitamin C Complex. (This is totally unique, you can't get this new generation formula anywhere else!) This complex uses 2 ultra stable forms of vitamin C. When tested against competitors, it does not oxidise in the bottle. What's more it has a 24 month shelf life after opening - whereas non-stable bottles have only 3 months.
What makes this Ultra-Stable Vitamin C Complex extremely clever is that it is paired with Palmitoyl Tripeptide-5. This is a short-chain peptide that proven to boost collagen production making skin's structure fuller. It also protects against loss of collagen (or degradation) by stopping enzymes in the skin that break down dermal proteins.