Betulinand Betulinic Acid are both extracted from birch trees and differ only in their chemical structures. However, many people have a question, What are the key differences between these two ingredients? Today, we will take a deeper look at betulin and betulinic acid to understand their unique properties.

What are betulin and betulinic acid

Betulin and betulinic acid are mainly compounds extracted from the bark of birch trees. Although both belong to triterpenoid compounds, they have significant differences in chemical structure. The molecules of betulin contain hydroxyl groups, while the molecular structure of betulinic acid contains carboxyl groups, resulting in different biological functions. 

Different biological functions

Antioxidant capacity:

Both betulin and betulinic acid exhibit potent antioxidant properties capable of scavenging free radicals. However, their mechanisms of action differ significantly: betulin primarily operates through hydrogen atom transfer (HAT), whereas betulinic acid predominantly undergoes electron transfer reactions (ET). Betulin demonstrates a superior antioxidant index compared to betulinic acid. Therefore, betulin shows more pronounced anti-aging benefits at the cellular level.

Anticancer activity:

The anticancer activity of betulinic acid is stronger than that of betulin. Betulinic acid possesses a carboxyl group, a strong acid moiety that betulin lacks. This carboxyl group enables hydrogen bonding or electrostatic interactions with specific targets in cancer cells (e.g., mitochondrial membrane proteins), directly triggering mitochondrial pathway-mediated apoptosis (such as Caspase cascade activation). In contrast, betulin's absence of this functional group results in weaker binding affinity to these targets. Consequently, betulinic acid exhibits significantly stronger anticancer activity.

Anti-inflammatory effects:

Betulinic acid exhibits significantly stronger anti-inflammatory activity than betulin. The presence of a carboxyl group enhances its targeting specificity and signaling regulation capabilities, leading to markedly improved anti-inflammatory effects compared to betulin.

How to choose

If you want your skin to resist aging and improve its condition, we recommend choosing products containing betulin. Because betulin has a strong antioxidant capacity, it can delay cell aging and enhance the skin barrier.

If you are looking to prevent cancer and alleviate inflammation, we recommend choosing products containing betulinic acid. If excessive intake of betulinic acid occurs, it can increase the burden on the gastrointestinal tract and stimulate the pain nerves in the stomach and intestines, causing abdominal pain.

Conclusion

Although both betulin and betulinic acid are extracted from birch trees, their biological effects differ significantly. Betulin exhibits stronger antioxidant activity than betulinic acid, whereas its anticancer and anti-inflammatory effects are markedly weaker. Therefore, for anti-aging skincare applications, betulin-containing products may be preferable, while betulinic acid-based formulations are more suitable for targeting cancer or inflammation.

If you are looking for betulin powder to make anti-aging cosmetics, please feel free to purchase from us at any time. We supply a large quantity of bulk betulin powder. As a professional supplier of plant extract powders, we have our factory. We guarantee to provide high-quality products and reliable services, while also having a high price advantage. If you need different specifications of betulin powder, we can also accept customization. Welcome to contact us today for quotes and free samples!