In China or Japan, the concept of glycation in skincare is well-accepted as one of the key concepts to younger consumers for preventative aging. 
A diet high in processed food matched with poor stress management or lack of sleep can take its toll over time on both skin layers in terms of dullness or elasticity loss.
 

Your skin but like TOAST

Toasting bread undergoes a Maillard reaction where sugar bonds with wheat proteins creating aromatic compounds that makes it taste and smell delicious.

However, we do not want this in our skin. 
Excess sugar molecules from the bloodstream can react with skin proteins to create unstable compounds to stable byproducts called AGEs (Advanced Glycation End-products).
The slow accumulation of AGEs can alter proteins in the epidermis or permanently deform collagen fibers leading to dry, stiff & dull skin- just like TOAST.

SWEET & SOUR JAPANESE PLUMS "UME" DELAYS THIS SLOW & ACCUMULATIVE AGING PROCESS!

UME EXTRACT B-BG​​​​​ sustainably sourced from the mountainous region of Wakayama prefecture, Japan is tested in-vitro to stop all steps that lead to AGEs formation and accumulation.
It also inhibits the 'negative' signaling from fibroblasts that promotes skin dullness. 

Continuous use of 2% UME EXTRACT B-BG in cream reduces the AGEs amount on skin that is worth 10 years of accumulation*2