Pterostilbene Powder

Product Name:Pterostilbene
CAS NO.:537-42-8
Test items: Specifications
Appearance: Off-white or white powder
Melting Point:92~96℃
Assay (HPLC): NLT99%
Loss on Drying: NMT0.5 %
Ignition Residue:NMT0.5 %
Storage conditions: This product should be kept in a sealed, shading, and dry place
Certification: ISO9001, ISO22000, Kosher, Halal, HACCP
Shipping speed: 1-3 days

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Product Introduction

What is Pterostilbene Powder?

Pterostilbene Powder, INCI name is PTEROCARPUS MARSUPIUM bark extract, is one of the natural plant anti-aging factors and has rich medicinal value. It is an antifungal active ingredient in blood-curing products and has excellent efficacy and activity. , is widely used in various fields of medicine, food, and cosmetics.

As a comprehensive and excellent whitening and antioxidant natural plant ingredient, pterostilbene has outstanding antioxidant and whitening effects. At present, no other natural plant ingredient can surpass it. It can be said to be the well-deserved "king of plant whitening and antioxidants" ".

The reason why pterostilbene has comprehensive skin care effects and rapid results is due to its direct inhibitory effect on tyrosinase. On the other hand, it has a very powerful antioxidant ability. It can also eliminate inflammation, promote damage repair, and inhibit Degradation of collagen, initiating anti-aging pathways.

The most important thing is that it can promote autophagy, which is a process of replacing old cells with new ones. It can metabolize existing melanin and lipofuscin, so the whitening speed will be faster and safer than ordinary active ingredients.


Pterostilbene vs resveratrol

Pterostilbene has a similar molecular structure and similar mechanism of action to resveratrol, an antioxidant that helps fight free radical damage. Pterostilbene is "embedded" with two methylated derivatives on the structure of resveratrol, which has a more powerful antioxidant effect, is more stable and has higher bioavailability than resveratrol. .

However, Pterostilbene Powder is superior in some properties, which is due to subtle differences in structure. Due to its unique structure, pterostilbene has stronger antifungal activity than resveratrol. In addition, pterostilbene has higher stability and antioxidant properties in the body than resveratrol.

Pterostilbene, as a trans-stilbene compound, is a methylated derivative of resveratrol. It has various biological activities such as antioxidant, anti-inflammatory, anti-aging, anti-tumor, hypolipidemic and antibacterial.

Pterostilbene effectively increases bioavailability due to the presence of two methoxy groups that aid absorption. In animal studies, it has been shown to be about 80% bioavailable, compared with about 20% for resveratrol.

The two methoxy groups improve the oil solubility of pterostilbene. Pterostilbene can be dissolved in polar oils and easily incorporated into oil phase products.


The effects of pterostilbene on the skin are currently mainly focused on the following aspects:


As a powerful antioxidant, Pterostilbene Powder has not been surpassed by any known plant ingredient in terms of whitening and antioxidant properties in external skin care products.

Inhibit tyrosinase

Tyrosinase is the key enzyme for melanin synthesis. The half inhibitory concentration IC50 value of glabridin, known as "whitening gold", for tyrosinase is the lowest among all products. Pterostilbene is slightly lower than glabridin, but Obviously better than other whitening raw materials VC, arbutin, etc.

Inhibit melanin

Pterostilbene Bulk Powder has a strong ability to inhibit melanin, even surpassing glycyrrhizin, which is known as the "whitening gold". It also has an efficient freckle removal effect.



Pterostilbene can inhibit the expression of COX-2, iNOS, PGE2 and NO through the Nrf2 pathway and reduce the degree of inflammation. There are some destructive enzymes in the human body, such as elastase and collagenase, which will destroy the skin structure and cause skin relaxation and aging. Pterostilbene has dual inhibitory capabilities, inhibiting two destructive enzymes at the same time, which can effectively resist wrinkles and delay aging, and improve sagging and wrinkled conditions.

UV resistant

Protects against UV rays and prevents photodamage

In the study "Protective Effect of Pterostilbene on Acute Photodamage of Human Fibroblasts Induced by Long-Wave Ultraviolet Radiation", cell viability detection and comet assay were used to analyze DNA damage, and it was concluded that a certain trace concentration of pterostilbene can reduce the damage of UV to HFF cells. of damage.

Resist UV rays and enhance sun protection effect

Natural sunscreen ingredients, applying cream containing 0.4% pterostilbene can bring SPF6.2 sunscreen value to the skin.

The maximum UV absorption wavelength of pterostilbene is 306nm, and its absorption peak range covers the 280-320nm band (UVB), with good UVB absorption effect.

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Glycated senescent protein (AGE) is when free glucose in the body encounters proteins and is spontaneously connected through the Maillard reaction to form AGE glycated senescent protein. The formation process of AGE protein is a destruction process of normal proteins, destroying the integrity and lifespan of cells. Pterostilbene can effectively prevent and repair AGE glycated aging proteins. Through its polyhydroxyl properties, it competes with the hydroxyl groups on sugars to form Schiff bases, thereby avoiding the deposition of high molecular weight AGEs.


YTBIO is committed to providing customers with the highest-quality Pure Pterostilbene Powder bulk and services so that every consumer can enjoy natural, healthy, and high-quality food. If you have any inquiries or needs about our products, please feel free to contact us, and we will reply to you as soon as possible.


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