
Pure White Birch Bark Extract powder for Health Supplements
Birch bark extract powder is made from the bark of birch (Betula pendula or Betula alba) through ethanol/supercritical CO2extraction process. The core active ingredients are betulin and betulinic acid. The content of betulin can reach 80%-98% (page 11), and the content of betulinic acid is 50%-98% (page 11). The extract has multiple biological activities such as anti-inflammatory, antioxidant, and anti-tumor, and is widely used in the fields of medicine, cosmetics, and food.
tem of Test |
LImlts of Test |
Results of Test |
Appearance |
White powder |
White powder |
ASsay |
Betulin Acld 98% |
Betulin Acld 98.32% |
Particle |
100%pass 80 mesh |
Conforms |
odor |
odorless |
Conforms |
AS |
<1.0ppm |
<1.0ppm |
Pb |
<1.0ppm |
Conforms |
cd |
<1.0ppm |
Conforms |
Hg |
<0.05ppm |
Conforms |
Loss on drylng |
<5% |
3.95% |
Total Plate Count |
<1000cfu/g |
95cfu/g |
Yeast &Mold |
<100cfu/g |
28cfu/g |
E.Col |
Negatlve |
Absent |
S.Aureus |
Negatlve |
Absent |
Salmonella |
Negatlve |
Absent |
PestIcldes |
Negatlve |
Absent |
Concluslon |
Conform with speclficatlon |
|
Storage |
Store In 2-8"C,cool&dry place,Keep away from strong light and heat |
1. Anti-inflammatory and immunomodulatory
By inhibiting the NF-ĸB signaling pathway, the expression of pro-inflammatory factors (such as IL-1β, TNF-α) is reduced, and inflammatory reactions such as arthritis and dermatitis are relieved. Animal experiments show that it has significant improvements in chronic inflammation models.
2. Antioxidant and anti-aging
The ability to scavenge free radicals is 3 times that of vitamin E, which can delay skin photoaging and reduce ultraviolet-induced oxidative damage. It is used in anti-wrinkle essences and repair mask formulas in cosmetics.
3. Anti-tumor activity
Betulinic acid inhibits tumor cell proliferation (such as breast cancer and melanoma) and induces apoptosis of cancer cells. Experiments have shown that its IC50 value for a variety of cancer cell lines is less than 10μM.
4. Antibacterial and antiseptic
It has an inhibitory effect on common pathogens such as Staphylococcus aureus and Escherichia coli, and is suitable for natural preservative substitutes.

1. Medical field
Assisted treatment of cancer, cardiovascular disease and chronic inflammation
For antiviral drug research (such as HIV inhibition)
2. Cosmetics
Anti-aging creams (such as repairing UV damage), oil-control lotions
Reducing scalp inflammation and hair loss in hair care products
3. Food and health products
Added as a natural antioxidant to functional drinks and oily foods
Used in dietary supplements to enhance immunity