Bearberry Leaf Extract

Bearberry Leaf Extract Arbutin is an active ingredient extracted from a rhododendron plant, that is, bearberry leaves. Its main function is to inhibit pigment and whiten the skin. The specific mechanism is that it can bind to the tyrosinase of melanocytes in the skin and inhibit the activity of tyrosinase.

Bearberry leaf extract arbutin also has other effects, such as antibacterial and anti-inflammatory effects, and can be used in urinary tract infections. In addition, there are antitussive, antiasthmatic, expectorant effects, and sometimes combined with other traditional Chinese medicines such as Campanulaceae, can treat cough, phlegm, asthma and other respiratory diseases. Therefore, arbutin has many functions and effects, but the most widely used role in medicine is to whiten and lighten spots. For example, arbutin is widely added in many cosmetics.

Bearberry leaf extract arbutin can lighten spots, eliminate redness, sterilize and brighten skin tone. Arbutin needs to be smeared for a long time to lighten the spots on the face. There are many spots on the face. You can also go to the medical and aesthetic institutions to use the method of laser freckle to help improve, which can remove the subcutaneous pigment particles. to restore the beauty of the skin. Do a good job of sun protection on your skin every day, and you can apply sunscreen or a sunscreen umbrella when you go out to reduce the sun exposure of your skin.

Bearberry leaf extract arbutin reduces the production of melanin by inhibiting the activity of the enzyme tyrosinase, which produces melanin. The principle of action is similar to the whitening drug hydroquinone. However, hydroquinone has side effects, and there are many precautions. It must be used under the guidance and monitoring of a doctor. The structure of arbutin has more glucose molecules than hydroquinone, which is less irritating and can be freely added to skin care products with a concentration limit of up to 7%. The active molecules of arbutin can penetrate the basal layer for deep spot lightening. It has a strong therapeutic effect on melasma, dark spots, sun spots, and pigmentation left over from drug allergies, but the concentration is too low. Persistence will be weakened, so 5% concentration is the safest and most efficient concentration for spot lightening. 5% concentration is faster than vitamin C to lighten spots, and the persistence of light spots is stable and will not cause irritation to the skin. After arbutin is absorbed by the skin, it will be reduced to hydroquinone, which has led to some people's doubts about the safety of arbutin, thinking that arbutin still has the opportunity to produce side effects similar to hydroquinone. The most common statement heard by Chemicalbook is that "the skin care products containing arbutin should not be used during the day, otherwise whitening will not be achieved, but it will become darker". In fact, don't worry, the test shows that only arbutin with a concentration of more than 7% may be sensitive to light, so 7% is a safety critical point. Within this concentration range, arbutin is not enough to produce photosensitivity, and it is not necessary to use it in the dark. Absorbed through the skin, decomposed by light, it will be reduced to hydroquinone, resulting in a whitening effect. The concentration of hydroquinone contained in arbutin skin care products is less than 20ppm (that is, 20 parts per million). Under such a low concentration limit, hydroquinone will not cause side effects such as skin anti-blackening. If you dare not use it during the day just because the skin care product contains arbutin, then it is not necessary, unless the skin care product containing arbutin also adds other maintenance ingredients that need to be protected from light. In short, buy skin care products from reliable brands, and then apply sunscreen during the day no matter what you apply.