Grape Seed Extract Powder
Specification: 95% Proanthocyanidins (OPC95%)(Other specifications can be customized)
Test Method: HPLC
CAS Registry No: 20347-71-1
Appearance: Reddish brown powder
Features:Water-solubility
Functions: Antioxidant
Applications: Beauty and Skin Care
Certifications: GMP, ISO9001:2015, ISO22000:2018, HACCP, KOSHER, HALAL
Sample: Free sample available
Production Capacity: 2000KG/month
Delivery Time: Delivery within one day from warehouse
Shelf Life: stored in a dry, cool place for two years.
Payment: T/T
Company Advantage: Kintai mainly focuses on the production of high content plant extracts and pharmaceutical intermediates all the year round.
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
Grape Seed Extract Powder Manufacturers and Suppliers
Grape Seed Extract powder (GSE) is a natural active ingredient extracted from grape seeds. It is rich in polyphenols, especially proanthocyanidins (OPC), and is a highly effective and safe natural antioxidant with a wide range of health benefits. Healthkintai® is a manufacturer and supplier of Grape Seed Extract proanthocyanidins. We offer Grape Seed Extract with 95% proanthocyanidins (other specifications can be customized upon request). We carefully select raw materials and control them from multiple aspects. If you need to wholesale high-quality GSE powder, please feel free to contact us at info@kintaibio.com.
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Product Name |
Specification |
Test Method |
|
Grape Seed Extract Powder |
95% Proanthocyanidins |
HPLC |
Other specifications can be customized. Contact us now>>>
Resveratrol vs Grape Seed Extract
While both resveratrol and Grape Seed Extract proanthocyanidins are potent polyphenolic antioxidants derived from grapes, their properties differ significantly. Resveratrol is primarily a single-structured stilbene compound, and its research focus and reputation are largely related to activating the longevity protein (SIRT1), its potential anti-aging effects, and cardiovascular protection mechanisms. In contrast, the core active ingredient in GSE is proanthocyanidins (especially oligomers), a complex and highly effective antioxidant complex whose capabilities are mainly manifested in directly neutralizing free radicals, protecting collagen, significantly enhancing vascular resilience, and improving skin elasticity. The two have complementary value in terms of synergistic antioxidant effects.
Grape Seed Extract Powder Benefits
Grape Seed Extract lower blood pressure
Grape Seed Extract Powder may have a positive effect on blood pressure, especially mildly elevated blood pressure, but its effect is not a direct antihypertensive drug. Its core mechanism lies in its rich content of proanthocyanidins and other powerful antioxidants, which can protect vascular endothelial cells and inhibit the activity of angiotensin-converting enzyme (ACE), thereby helping blood vessels relax, improve elasticity, and reduce peripheral resistance. Multiple clinical studies have shown that continuous supplementation with GSE may help lower systolic and diastolic blood pressure, with relatively more pronounced effects in individuals with prehypertension or mild hypertension.By stabilizing blood sugar, Grape Seed Extract also effects on weight loss.

Grape Seed Extract benefits for hair
The Extract offers significant benefits for hair health, effectively combating oxidative stress caused by free radicals from UV rays and pollution. This stress weakens hair follicles, leading to thinning and aging hair. By strengthening scalp capillaries, it improves blood circulation and nutrient supply to hair follicles, potentially promoting healthier hair growth and reducing hair loss. Furthermore, its anti-inflammatory properties help soothe scalp problems such as dandruff, while its ability to protect and strengthen keratin enhances hair elasticity, reduces breakage, and adds natural shine.
Grape Seed Extract benefits for Skin
It can slow down photoaging and collagen degradation at the source, thus helping to delay signs of aging such as wrinkles and sagging. Simultaneously, its anti-inflammatory properties help soothe sensitive and red skin problems, and may improve acne, resulting in a healthier and brighter complexion. Furthermore, it can inhibit tyrosinase activity, offering some brightening and dullness-improving effects. Therefore, Grape Seed Extract Powder is often used as an oral beauty supplement or added to skincare products, aiming to enhance the skin's defense and health from the inside out.

(Reference:https://www.mdpi.com/1420-3049/25/22/5311)
Grape Seed Extract for ed
Grape Seed Extract may have an indirect, adjunctive effect on some types of erectile dysfunction (ED), but it is not a direct treatment. Grape Seed Extract may help improve penile blood flow by improving systemic microcirculation, enhancing vascular elasticity, and promoting the availability of nitric oxide (NO), a key factor mediating vasodilation. This may offer adjunctive benefits for ED grape seed extract for testosterone caused by metabolic problems such as vascular endothelial damage, hypertension, or diabetes.
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Use of Grape Seed Extract
Grape Seed Extract Supplements
The core benefits of grape seed extract proanthocyanidin supplements stem from their powerful antioxidant and vascular protective effects. They can slow down cell and skin aging, benefit cardiovascular health, relieve leg swelling, improve skin smoothness and elasticity, and have certain anti-inflammatory and anti-allergic properties. In terms of form, commercially available supplements are mainly oral capsules or tablets. The key is standardized extraction and clear labeling of proanthocyanidin (OPC) content; some products emphasize the proportion of oligomers to ensure absorption rate.

Grape Seed Extract Haircare Product
The extract is a highly effective natural active ingredient in hair care products, primarily used in shampoos, conditioners, hair masks, and scalp serums. Its anti-inflammatory properties soothe scalp sensitivity and itching, while the protective layer it forms on the hair surface enhances moisture retention, increases shine, and reduces breakage. This makes hair care products containing grape seed extract highly sought after in the repair, anti-hair loss, and scalp care fields.

Grape Seed Extract in Skincare
Grape seed extract Powder is a highly regarded antioxidant ingredient in skincare, frequently added to serums, creams, eye creams, and sunscreens. Its anti-inflammatory properties help soothe sensitive, red skin and may aid in improving acne. By enhancing skin microcirculation and inhibiting tyrosinase activity, it can also brighten skin tone and improve dullness. Furthermore, it helps strengthen collagen structure, improving skin firmness and elasticity. Therefore, grape seed extract is a comprehensive skincare ingredient with multiple benefits, including anti-aging, repair, and brightening.

Side Effects of Grape Seed Extract
Common side effects of grape seed extract may include headache, dizziness, nausea, itchy skin, or dry mouth. These reactions are usually related to excessive dosage or individual sensitivity. Because it has a mild inhibitory effect on platelet aggregation, it should be avoided by people taking anticoagulants (such as warfarin or aspirin), those with bleeding disorders, or those about to undergo surgery to prevent increased bleeding risk. Furthermore, pregnant women, breastfeeding women, and those with hepatic or renal insufficiency should use it with caution for safety reasons.
Where can I buy Grape Seed Extract?
- Premium Raw Materials
We select the grape seeds from our partner high-quality grape-growing regions, ensuring they are pollution-free and highly active, guaranteeing the purity and efficacy of our products from the source.
- OEM & ODM Service
We offer highly customizable Grape Seed Extract powder specifications. Whether it's proanthocyanidin content, powder or liquid formulation, or specific packaging requirements, we can flexibly adjust to your brand and formulation goals.
- Multiple Certifications
We strictly implement end-to-end quality control. Each batch of products comes with a detailed third-party testing report, including monitoring of key indicators such as heavy metals, pesticide residues, microorganisms, and active ingredient content, giving you peace of mind when sourcing.

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FAQ
Q1:Does grape seed extract prevent norovirus?
A1:There is currently no scientific evidence to show that grape seed extract can prevent norovirus infection. While laboratory studies suggest its proanthocyanidins might have some general antiviral properties in vitro, these findings are preliminary and not specific to norovirus.
Q2:Does grape seed extract affect sleep?
A2:While not primarily used as a sleep aid, Grape Seed Extract powder may indirectly influence sleep quality for some individuals. Its potent antioxidant and anti-inflammatory properties can help reduce systemic inflammation and oxidative stress, which are sometimes linked to sleep disturbances. Additionally, a small number of users report mild drowsiness as a side effect.
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