10 Pieces Hot Small Sample Decorte Cosme Decorte White Kojic Acid Skin Whitening and Spots Lightening Essence Small Sample 0.6*2 Pieces

Attention

Kojic acid itself is easy to oxidize and turn yellow

Drunk and used at night

If you use it during the day, you must add Wall protection!

Product Name: Daike Whitelogist new upgrade kojic acid whitening essence

specification: 0.6ml/bag * 1

origin: Japan

besides the small purple bottle Moisturizing Essence, another Kanban star product of Daike's family-kojic acid whitening essence!! The latest evolution version in 17 years!

The EW version has been slightly updated and more ingredients have been added,

when it comes to this bottle of products, it is natural to talk about kojic acid, which makes this bottle different because of kojic acid.

Kojic acid is called 5-hydroxy-2-hydroxymethyl-4-pyranone with a relative molecular weight of 142.11. It is made by fermentation and purification of glucose or sucrose under the action of kojase. In addition to whitening effect, kojic acid also has antibacterial and fresh-keeping effects. Kojic acid is a cyclic pyranone compound, which can enter the intercellular substance to form intercellular colloid, and play a role in moisturizing and increasing skin elasticity. At the same time, it can absorb 280-320Nm ultraviolet rays and has good sun protection effect. The whitening mechanism of kojic acid is mainly to inhibit tyrosinase and chelate with copper ions in tyrosinase, which makes copper ions lose effect, thus making the tyrosinase lacking copper ions lose its catalytic property, and finally to inhibit melanogenesis, skin whitening effect. At the same time, kojic acid can inhibit the polymerization of DHI(5,6-dihydroxyindole) and inhibit the activity of DHICA oxidase. It is a single whitening agent that can simultaneously inhibit various enzymes. Kojic acid has poor stability to light and heat, and is easy to oxidize and change color. It is easy to interact with metal ions, and has poor skin absorption.

Kojic acid has a strong inhibitory effect on melanin production of human skin, and it is safe and will not cause white spot sequelae. It is better to use it in combination with other preparations (such as SOD, placenta extract, amino acid, sunscreen agent and various plant extracts). (Qiu Bingyi, cosmetic chemistry and technology Encyclopedia P1049, China Light Industry Press, 1997)

both the new version and the old version are opaque glass bottles to avoid kojic acid being damaged by light.

In addition to kojic acid components, EW version still adds new components, which can inhibit the transfer of melanin (it may mean this, but I don't understand it in Japanese), cassia Mimosoides Extract Mimosa Cassia Extract.