Mulberry Leaf Extract Powder
Specification: 1%—5% DNJ
Appearance: Brown powder
Test Method: UV
Lead time: 1-3 days
Shelf Life: 2 years
Sample: Free sample available
Storage: Cool dry place and avoid light
Content: Vegan, Gluten-Free, Natural, Non-GMO, Non-additive
Certs: GMP, ISO9001:2015, ISO22000:2018, HACCP, KOSHER, HALAL.
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Mulberry Leaf Extract Powder Supplier/Factory
Mulberry leaf extract powder is extracted from dried leaves of mulberry by water or alcohol. It contains a variety of active substances, among which 1-Deoxynojirimycin(DNJ) is the main effective component.
With well-defined effects including α-glucosidase inhibition, glycolipid metabolism regulation, anti-oxidation and anti-inflammation, it has been widely applied in diverse markets such as health products, food and beverages, cosmetics, pharmaceuticals, and animal feed. Supported by the policy of “homology of medicine and food” and its approval as a novel food ingredient in the EU, its export volume has been on a steady growth trend.
Healthkintai® can be your best professional partner in the field of plant extract, because we have been focused on it for over one decade. Our top-selling specification of Mulberry leaf extract powder is 1%-5% DNJ, but other specifications are also available. If you require, please feel free to contact us at health@kintaibio.com.
|
Item |
Specification |
Test Method |
|
Mulberry leaf extract powder |
1% DNJ |
UV |
|
5% DNJ |
UV |

The TDS of Mulberry Leaf Extract Powder
|
Item |
Specification |
Testing method |
|
Assay |
5% DNJ |
UV |
|
Appearance(Color) |
Brown Powder |
Organoleptic |
|
Particle Size |
99% Through 80 mesh |
USP<786> |
|
Loss on drying |
≤5.0% |
GB 5009.3 |
|
E.Coli |
Negative |
GB 4789.3 |
|
Salmonella |
Negative |
GB 4789.4 |
|
Heavy Metals (Total) |
≤10.0ppm |
GB 2762-2025/ICP-MS |
|
Arsenic(As) |
≤ 1.0ppm |
GB 2762-2025/ICP-MS |
|
Lead(Pb) |
≤ 3.0ppm |
ICP-MS |
|
Mercury(Hg) |
≤ 0.1ppm |
ICP-MS |
|
Cadmium(Cd) |
≤ 1.0ppm |
ICP-MS |
Regulatory Status of Mulberry Leaf Extract
United States (FDA)
Dietary Supplements: Mulberry leaf extract is marketed as a dietary supplement.
GRAS Status: The FDA has received GRAS notices (GRN 992) for Mulberry leaf extract as a food ingredient for various uses.
Mulberry Leaf Extract Powder Botanical Source
Our mulberry leaf extract powder is derived from the authentic raw material recorded in the Pharmacopoeia of the People’s Republic of China —the dried White mulberry (Morus alba L.)leaves.
We select high-quality raw materials from core advantageous producing areas such as Tongxiang in Zhejiang, Hanzhong in Shaanxi, and Nanchong in Sichuan. The mulberry leaves grown in these regions are not only naturally rich in active ingredients like DNJ and flavonoids but also harvested after the first frost, boasting far superior medicinal efficacy and nutritional value compared to ordinary mulberry leaves.
Adopting the low-temperature cold extraction and purification process, combined with spray drying technology, our product not only retains over 95% of the active ingredients in their entirety but also features uniform particle size and excellent instant solubility.

How to Make Mulberry Leaf Extract

Sample available! Contact us to get more details. >>>
Mulberry Leaf Extract Benefits
Mulberry leaf extract for blood sugar
DNJ, the core active component in mulberry leaf extract, can effectively inhibit the activity of α-glucosidase in the intestinal tract, delay the process of decomposition and absorption of carbohydrates such as starch and sucrose, and reduce the rate and total amount of glucose entering the blood, thereby effectively stabilizing postprandial blood glucose peaks. Meanwhile, the flavonoids and mulberry leaf polysaccharides in the extract can synergistically improve the body’s insulin sensitivity and enhance the ability of peripheral tissue cells to uptake and utilize glucose, which in turn helps maintain blood glucose homeostasis in the body.

Reference: https://www.sciencedirect.com/science/article/pii/S1756464624003323
Mulberry leaf extract for weight loss
DNJ in mulberry leaf extract can effectively inhibit the activity of intestinal α-glucosidase, delay the decomposition and absorption of carbohydrates such as starch and sucrose, reduce the body’s caloric intake, and prevent excess glucose from being converted into and stored as triglycerides in the liver and adipose tissue, thereby reducing the material basis for fat accumulation at the source. Furthermore, the flavonoids and mulberry leaf polysaccharides in the extract can synergistically inhibit the activity of enzymes related to hepatic fat synthesis, reducing the synthesis and deposition of fat.

Reference:https://www.sciencedirect.com/science/article/abs/pii/S1043661819302828
Mulberry leaf extract for skincare
The flavonoids in mulberry leaf extract can effectively inhibit the activity of tyrosinase in the skin, reduce the synthesis and deposition of melanin, and exert the effects of whitening skin, fading spots, and evening out skin tone.
Mulberry leaf polysaccharides possess excellent hydrophilicity and moisture-locking capacity; they can form a breathable moisturizing film on the skin surface, firmly lock in skin moisture, improve dry and rough skin conditions, and achieve long-lasting moisturization.
Mulberry Leaf Extract Applications
Mulberry leaf extract used in supplements
Our Mulberry leaf extract can be used as a high-quality natural plant-based raw material in the field of dietary supplements. Common product forms include capsules, tablets, and powders, which are suitable for daily supplementation by people with slightly elevated blood sugar or those focused on weight management.

Mulberry leaf extract used in cosmetics
Mulberry leaf extract is a highly promising natural active raw material in the field of cosmetics. Its mild and non-irritating properties make it suitable for most skin types, which is why it is widely used in a variety of product categories such as serums, lotions, creams, and facial masks.

Mulberry Leaf Extract Dosage and Side Effects
The typical dosage of White Mulberry Leaf extract is around 1,000-2,000 mg daily, divided into two or three doses. However, it’s important to follow the specific product recommendations and consult with a healthcare provider for personalized advice.
Mulberry leaf extract is generally safe for short-term use, but common side effects are mild digestive issues like bloating, gas, diarrhea, or constipation, with potential for dizziness, headache, or mild nausea. More serious concerns involve interactions with diabetes medications, as it can lower blood sugar, increasing hypoglycemia risk, and it’s not recommended for children or pregnant/breastfeeding women due to insufficient safety data, making doctor consultation essential.
Where to Buy Mulberry Leaf Extract Powder?
Healthkintai® has been manufacturing plant extract for over 12 years. We believe we can meet all of your requirements. Here are our main advantages:
- Our mulberry leaf extract powder features 5% DNJ. If you require a higher DNJ specification, we can provide exclusive customization services.
- Our mulberry leaf extract powder is sourced from the dried white mulberry leaves, and the content of its active substances is significantly higher than that of ordinary mulberry leaves.
If you want to learn about more about Mulberry leaf extract, please feel free to contact us at health@kintaibio.com. Here are our certifications.

FAQ
Q1: Can you provide samples?
Yes, we can provide samples for testing. Please contact us to request samples.
Q2: What is your payment terms?
Our standard payment terms are T/T, L/C, and Western Union. Other payment methods can be discussed.
Q3: What is your MOQ (Minimum Order Quantity)?
Our MOQ for Mulberry leaf extract powder is 1 kilogram.
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