Pure Pterostilbene Powder (Dimethyl Resveratrol) 98% Bulk Supply

CAS No.: 537-42-8
Specification: 98%
Appearance: White to off-white powder
Test Method: HPLC
Solubility: Soluble in lipids and ethanol; slightly soluble in water
Applications: Anti-aging, Cognitive support, Antioxidant, Metabolic health
Package: 1–25kg or customized
Sample: Sample available
Storage: Cool dry place away from direct sunlight
Certificates: ISO22000, FSSC22000, Halal, cGMP, Organic

Products Description

Pterostilbene Powder is a highly purified, white to off-white dimethyl resveratrol powder known for its powerful antioxidant, anti-aging and cognitive support properties. Pterostilbene is structurally similar to resveratrol, but has greater bioavailability, better cellular absorption and a longer half-life, making it a top choice for developing premium nutraceuticals and functional formulations.
At a molecular level, pterostilbene (trans-3,5-dimethoxy-4-hydroxystilbene) is a natural polyphenol that supports mitochondrial health, reduces oxidative stress and helps regulate metabolic processes. Its lipophilic nature allows for better membrane permeability compared to resveratrol, resulting in more effective systemic effects at lower doses.
In recent years, demand for pterostilbene has grown significantly, especially in the nutraceutical and anti-aging markets, as consumers focus on longevity, brain health and immunity. Leading health brands are now adding pterostilbene to nootropic formulas, NMN/NAD+ support formulas and skin health supplements.
Our pterostilbene powder, with a high purity of 98%, is produced using a fermentation process, ensuring a clean source, sustainable yield and minimal residual solvents. Our controlled fermentation technology delivers a more stable, bioavailable ingredient, making it ideal for functional formulations where quality and compliance are key.

Why choose our pterostilbene powder?

1. Fermentation production, higher purity and more stability
Our pterostilbene is produced by microbial fermentation, which ensures: average batch purity up to 99.2%, residual solvent content less than 0.1%, and higher batch-to-batch consistency because fermentation avoids seasonal changes in plant sources.
2. Higher stability and shelf life
Our pterostilbene powder has been tested under accelerated stability conditions (40°C, 75% relative humidity for 6 months) and the results show a degradation rate of less than 1.5%, which can provide longer product shelf life and reduce losses during storage or transportation.
3. Better solubility
Ethanol solubility: >10 mg/mL, water dispersibility: 1.2 mg/mL, finely micronized (D90 < 45 μm), making it better mixed in dry mix formulations. This makes it suitable for capsule and beverage powder applications.

COA

Items	Specification	Results	Test Method
Appearance	White to Off-White Powder	Off-White Powder	Visual
Identification	Positive	Positive	HPLC
Assay (Pterostilbene)	≥98.0%	99.2%	HPLC
Loss on Drying	≤1.0%	0.38%	USP <731>
Residue on Ignition	≤0.5%	0.16%	USP <281>
Melting Point	88–91°C	89.5°C	USP <741>
Particle Size (D90)	NLT 90% pass 80 mesh	96.3%	Laser Diffraction
Solubility in Ethanol	≥10 mg/mL	12.6 mg/mL	In-house
Water Dispersibility	≥1 mg/mL	1.2 mg/mL	In-house
Heavy Metals	≤10 ppm	3.18 ppm	ICP-MS
Lead (Pb)	≤2 ppm	0.45 ppm	ICP-MS
Arsenic (As)	≤1 ppm	0.21 ppm	ICP-MS
Cadmium (Cd)	≤1 ppm	0.09 ppm	ICP-MS
Mercury (Hg)	≤0.1 ppm	<0.01 ppm	ICP-MS
Total Plate Count	≤1,000 CFU/g	<100 CFU/g	USP <2021>
Yeast & Mold	≤100 CFU/g	<10 CFU/g	USP <2021>
E. coli	Negative / 10g	Negative	USP <2022>
Salmonella	Negative / 25g	Negative	USP <2022>
Staphylococcus aureus	Negative / 10g	Negative	USP <2022>
Residual Solvents	Meet USP <467>	Complies	GC-MS

What is pterostilbene used for?

1. Nutraceuticals
Capsules, tablets and softgels designed for anti-aging, brain health and metabolic support.
2. Nootropics
Cognitive enhancement products designed to improve memory, focus and neuroprotection.
3. Anti-aging skincare
Used in creams or serums for antioxidant and anti-inflammatory benefits.
4. Functional foods and beverages
Added to beauty drinks, longevity formulas and powder mixes.
5. Sports nutrition
Used in recovery or anti-inflammatory formulas due to its support for mitochondria.
6. Pet supplements
Used to reduce oxidative stress in pets and promote healthy aging.

Recommended Usage & Dosage

Application	Recommended Daily Dose	Notes
General Supplementation	50–150 mg/day	Taken with food; often stacked with resveratrol or NMN
Anti-aging/Wellness	100–250 mg/day	Divided doses preferred for better absorption
Cognitive/Nootropic Use	100–200 mg/day	Supports memory, mental clarity, and neuroprotection
Topical Skincare Use	0.1–1% concentration in formula	Lipid-soluble; requires emulsifiers or solubilizers
Pet Use	1–5 mg/kg body weight	Dosage depends on species; consult veterinary guidance

Frequently Asked Questions (FAQ)

1. How is pterostilbene different from resveratrol?

Pterostilbene is a dimethylated analog of resveratrol that has significantly higher bioavailability (up to 80%), better lipid solubility, and longer half-life, making it more effective at lower doses.

2. Can pterostilbene be used safely long-term?

Yes, clinical studies have shown that pterostilbene is well tolerated at doses up to 250 mg per day, with no significant adverse effects reported in 6-8 week trials. However, higher doses should be used under a physician's supervision.

3. Can pterostilbene be used with NMN or NAD+ enhancers?

Of course. It is often used in combination with NMN or NR (nicotinamide riboside) to support NAD+ levels and activate SIRT1, a key pathway for cellular longevity.

4. Is your pterostilbene powder water-soluble?

Pterostilbene is poorly soluble in water but readily soluble in ethanol. Our powder is micronized (D90 < 45 μm) to make it more dispersible in dry mix and capsule formulations, and can be incorporated into liposomes or oil-based systems for beverages or skin care products.