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ONE THING SERUM consists of a complex of 8 hyaluronic acids, consisting of high, medium and low molecular weight hyaluronic acid molecules, so that moisture can be quickly absorbed into the skin and maintain moisture in all skin layers. In order to provide the maximum efficiency of the plants, we have adopted a technology that uses all parts of the plants. It is a gentle and highly concentrated serum that can be safely used even on sensitive skin.


Camellia Sinensis (Chinese tea tree) leaf extract contains 5 times more vitamin C than lemon, so it refreshes tired skin. 

EGCG (epigallocatechin gallate) in tea tree promotes skin elasticity by scavenging free oxygen radicals that damage our DNA and can cause cancer.

Camellia Sinensis Leaf Extract rich in catechin and tannin, which help smooth and soothe irritated skin, rich in vitamins E and K, making your skin supple and supple. This extract is made using only pure, organic raw materials from Jeju Province in South Korea.


  • Reduces redness, inflammation and irritation
  • The hyaluronic acid complex deeply moisturizes the skin
  • It has antibacterial, healing, UV protective properties
  • Helps reduce swelling
  • Reduces wrinkles and increases skin elasticity
  • Inhibits collagenase (collagen-reducing enzyme that breaks down collagen)
  • Helps keep the skin firm and elastic

Green Tea Serum

  • Use on clean skin after toner, in the morning before SPF protection or moisturizer, and in the evening before night mask or cream.

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