Introduction to Arbutin
Arbutin, commonly known as arbutin and arbutin, is the monoglucose form of hydroquinone, which exists in the leaves of Rosaceae pears and Rhododendron bearberry plants. Arbutin is an effective ingredient with good biological activity in plants, so it has also become one of the main raw materials in major cosmetics at home and abroad. According to the different spatial directions of glycosidic bonds, arbutin can be divided into β-arbutin and α-arbutin. The molecular formulas of the two are exactly the same, the spatial structure is different, and the directions of glycosidic bonds are exactly opposite.
Arbutin production method
The production method of α-arbutin is obtained by sugar conversion by microbial enzymes, and its stability, effectiveness and safety are better than β-arbutin, and the skin care effect is 10 times that of beta. It has been widely used by many cosmetic brands in the world.
The main purpose of arbutin
β-Arbutin and α-Arbutin are mainly used in the cosmetics industry. They can be formulated into creams or emulsions and added to skin care products such as lotions, essences, creams, and masks.
β-Arbutin VS α-Arbutin
1) Difference in stability: α-arbutin will not decompose at a high temperature of 100°; β-arbutin will decompose slightly when it exceeds 60°. Under the condition of pH = 5.2-8.0, there is no decomposition in α-arbutin solution, but beta-arbutin is decomposed. So overall, Alpha is better than Beta for stability.
2) The physical and chemical properties of α-arbutin and β-arbutin are basically similar. They are epimers of each other, but their optical rotations are very different. The value of α-arbutin is positive (+174.0～ +184.0°), while β-arbutin has a negative value (-64°～-68°), which is also the main difference and way of judgment between the two.
3) The price of α-arbutin is 3 times higher than that of β-arbutin, but the skin care effect is 10 times higher than that of β-arbutin.
4) β-arbutin exists in nature, but α-arbutin does not exist
Attention:
1. Both β-arbutin and α-arbutin can only be used externally, not orally.
2. Arbutin can not be used in the formula with methyl paraben, it is easy to produce hydroquinone, a harmful substance that irritates the skin.
3. When formulating skin care products, add appropriate amount of antioxidants to prevent discoloration.
4. Arbutin is not easy to decompose in the reaction temperature range of 30~50℃.
5. The pH value of arbutin should be controlled at 5-7, and its stability should be controlled within the suitable range of human skin. Alkaline will change color, and acid will decompose in a small amount.
6. In order to accelerate the absorption of arbutin, 0.8%~1% of osmotic agent Azone can be added.
Packaging Storage
Packing specification: 25kg cardboard drum lined with double-layer plastic bag.
Storage method: Please place it in a dry and ventilated place, avoid direct sunlight and high temperature.