As seen in Sept 22 Vogue Magazine! HA4C is an ultra-lightweight serum that contains Hyaluronic Acid complex, with an ultra-low molecular weight that is 60 times more soluble than standard Hyaluronic Acid. This provides quicker penetration through the layers of the skin for faster moisturisation. After twice daily application of HA4C, there is a significant improvement in hydration across all facial areas. HA4C contains the optimal concentration of glycerin to prevent trans-epidermal water loss (TEWL) and establish a normal moisture balance for a more hydrated, even skin surface.