China-based supplement manufacturing for overseas private label brands

Established in 2006, Shaanxi Rainwood Biotech Co., Ltd. supports overseas health and wellness brands with dietary supplements, botanical extracts, private label dosage forms, packaging, quality documents, and export coordination.

Company

Shaanxi Rainwood Biotech Co., Ltd.

Rainwood focuses on nutraceutical and wellness product manufacturing, with product categories covering dietary supplements, botanical extracts, private label supplements, superfood powders, mineral supplements, amino acids, vitamins, and selected cosmetic ingredients.

2006Founded
100+Team members
10,000 m2Workshop area
3-5 daysTypical sample timing
Rainwood facility exterior

Capabilities

Manufacturing directions buyers can discuss

For OEM inquiries, Rainwood focuses the conversation on finished supplements, private label packaging, target-market documents, and launch-ready product decisions.

Private label dosage forms

Hard capsules, gummies, powder drinks, stick packs, tablets, softgels, and bulk powder formats.

Ingredient and formula directions

Botanical extracts, superfood powders, minerals, amino acids, vitamins, and functional wellness blends.

Quality and documentation

Project-specific quality documents, batch records, testing coordination, and label information support.

Export and channel support

Service for overseas buyers selling through Amazon, TikTok Shop, DTC websites, distributors, and local retail channels.

Service Process

A practical OEM path from requirement to shipment

A practical OEM process starts with requirement confirmation and continues through raw material management, production control, testing, documentation, logistics, and traceability.

  1. Requirement confirmation and market compliance review.

  2. Raw material procurement and supplier management.

  3. GMP production and process control.

  4. Quality testing, document preparation, and release review.

  5. Packaging confirmation, warehousing, logistics, and traceability support.

Buyer Fit

Built for overseas supplement brands

Rainwood works with buyers who need a China-based manufacturing partner for formula discussion, dosage form production, packaging options, quality documents, and export communication.

Amazon and marketplace sellers

Need clear specifications, retail-ready packaging, document support, and shipment planning.

DTC and creator-led brands

Need trend-ready products, fast sample discussion, flavor and packaging options, and launch-friendly SKUs.

Distributors and importers

Need multi-SKU sourcing, stable supply, documentation, cartons, labels, and regional shipment coordination.