How long does it take to deliver samples?

For orders under 50kg, express delivery takes 3-10 days.

Is the product currently in stock?

Yes, the product is in stock and a Certificate of Analysis (COA) is available.

What are the payment terms accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

High Quality 100% Pure Organic Tea Extract 99% L Theanine Powder

Name: High Quality 100% Pure Organic Tea Extract 99% L Theanine Powder
Brand: Xi an Sost Biotech Co., Ltd.
SKU: 1911408665

Shaanxi, ChinaXi an Sost Biotech Co., Ltd.

US$30.00-60.00

2 kg

Sample price:US$60.00/kg.Request sample

Product profile

Customization

Available

Certification

USDA Organic/EU Organic/ISO/Kosher/Halal/FDA

Application Form

Tablet, Capsule, Powder

Model NO.

L Theanine Powder

Application

Food, Health Care Products, Medicine

State

Powder

Extract Source

Leaf

Product Name

L Theanine Powder

Appearance

White Powder

Active Ingredient

Theanine

CAS No

3081-61-6

COA

Available

Sample

Available

Stock

In Stock

Shelf Life

24 Months

Transport Package

Aluminum Foil Bag/Drum

Specification

10%, 20%, 30%, 40%, 50%, 99%

Trademark

SOST

Origin

China

Production Capacity

50000kg/Year

Key features

High Purity Content: Theanine content reaches 99.21%, exceeding the 99% standard.

Multiple Certifications: Certified by USDA Organic, EU Organic, ISO, Kosher, Halal, and FDA.

Versatile Application Forms: Available as Tablet, Capsule, and Powder for Food, Health Care, and Medicine.

Health Benefits: Reduces blood pressure, sugar, lipids, and enhances immune function.

Anti-Aging Properties: Removes radicals and prevents aging in cosmetics and pharmaceuticals.

OEM and ODM Services: Customization services available for product development.

Fast Sample Delivery: Express shipping available for samples or orders under 50kg within 3-10 days.

In Stock Availability: Product is currently in stock with COA available for immediate order.

Company profile

Xi an Sost Biotech Co., Ltd.

Shaanxi, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2012-11-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤3.08h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryXi'an Sost Biotech Co., Ltd. is identified as a China-based manufacturer and trading company focused on herbal extracts, Chinese medicine raw materials, cosmetic ingredients, healthcare ingredients, food additives, and dietary supplement ingredients. Evidence indicates established production, R&D, sales, purchasing, and quality-control functions, with stated GMP-oriented operations, ISO 9001:2015 certification, multiple production bases, and broad export coverage. However, the records contain conflicting production information: one slice reports three production bases and eight lines, while another reports a 2,990 m² plant and two production lines. The supplier states that it provides pre- and after-sales service and accepts several trade and payment terms, but detailed service performance, customization results, customer references, and financial strength are not sufficiently documented. Monetary figures are omitted.

Supplier typeThe supplier is explicitly classified as a manufacturer and limited company, while another record identifies its business nature as a trading company. Its stated activities include R&D, production, sales, and service of herbal extracts and natural raw materials, so it appears to combine manufacturing and trading functions.

CertificationsThe supplier reports ISO 9001:2015 certification and states that production follows national GMP standards, with GMP-standard factories and 100,000-level clean workshops. ISO certification is explicit; the GMP statements are operational claims rather than a separately named certificate.

After-Sales capabilityThe company explicitly emphasizes before-sales and after-sales service, states that it continuously improves service, and describes service as part of its business operations. However, no evidence gives measurable after-sales performance, service staffing, response times, or documented customer outcomes.

R&D capabilityThe supplier reports an R&D department, research and development of high-purity natural products, biological engineering and natural extraction technology, and an innovation-oriented approach. Nevertheless, only two years of R&D engineer experience are reported, and there is no evidence of patents, new-product records, or quantified R&D achievements.

Production capacityProduction capability is supported by a stated manufacturing plant, natural-extract production activities, GMP-oriented facilities, clean workshops, and product lines covering food, healthcare, cosmetics, and pharmaceutical intermediates. The data are inconsistent: one record states three production bases and eight lines, while another reports a 2,990 m² plant and two lines; quality-control staffing is also reported as fewer than five employees.