About Us
Weightlose.cn is the Weight Management Division of Baisifu Biological Engineering Co., Ltd. — a vertically integrated plant-extract manufacturer headquartered at No. 69 Jinye Road, Xi’an Hi-Tech Zone, China. From a single campus, botanicals arrive, are authenticated, extracted, concentrated, tested and shipped to supplement brands across the Americas, Europe, the Middle East and Asia-Pacific.
One Campus, End to End
Our Xi’an facility spans 66,600 m² of GMP-certified production space and integrates every link of the botanical extract supply chain under one roof:
- Species authentication — incoming botanicals verified by macroscopic, microscopic and DNA-barcode methods before acceptance
- Extraction — supercritical CO2, ethanol-water solvent, and enzymatic hydrolysis lines running in parallel
- Concentration & drying — vacuum concentration, spray drying (inlet 180-200 C, outlet 75-85 C) and freeze-drying for heat-sensitive actives
- Quality control — HPLC, UV-Vis, GC, ICP-MS and microbiology labs operating under ISO 17025 principles
- Finished-product manufacturing — blending, granulation, sachet filling and tablet pressing for OEM solid beverages
- Export warehousing — climate-controlled storage with FIFO batch management and 24-month retained-sample program
Production runs under GMP and HACCP food-safety management systems. Every lot is tested for active content (HPLC / UV), heavy metals (Pb, As, Cd, Hg each <=1.0 ppm), solvent residues (<500 ppm), and microbiology (TPC, yeast, mould, E. coli, Salmonella) — with retained samples kept for 24 months.
From Ingredients to Finished Products
For years we supplied standardized bulk extracts — and watched our partners struggle to turn good ingredients into differentiated finished goods. So our R&D team went further.
Lotus Leaf & Inulin Slimming Solid Beverage
A gut-focused weight-management drink built on six food-homology botanicals — lotus leaf, inulin, mulberry leaf, hawthorn, cassia seed and green tea. Developed for satiety, gut transit and lipid-metabolism support.
Blood Sugar Balance Solid Beverage
A formula backed by a preclinical mouse diabetes study, combining bitter melon, Gymnema sylvestre, chromium picolinate and banaba leaf extract for postprandial glucose management.
Today the division serves two ways at once: as a bulk-ingredient supplier with deep documentation (COA, TDS, MSDS per lot), and as an OEM / private-label manufacturer of finished solid beverages — from 1 kg evaluation samples to full-container programs.
Manufacturing Capabilities at a Glance
| Capability | Specification |
|---|---|
| Production area | 66,600 sqm GMP-certified |
| Extraction capacity | 8 multi-function extraction lines, 500-5,000 L per reactor |
| Drying | Spray dryer (5-150 kg/h), vacuum freeze-dryer |
| QC instrumentation | HPLC, UV-Vis, GC, ICP-MS, microbiology suite |
| Finished formats | Sachet, stick-pack, tablet, capsule, powder blend |
| Annual output | 3,000+ tonnes botanical extracts; 50M+ sachet units |
| Certifications | GMP, HACCP, ISO 22000, Kosher & Halal available |
What Guides Our Work
- Evidence over adjectives. Formulas are built on mechanistic research and, where possible, preclinical data — not marketing copy.
- Compliance as a feature. We design claims, artwork and manuals to survive destination-market scrutiny (FDA, EFSA, FSANZ).
- Vertical ownership. Authentication, extraction, testing and documentation from one accountable source — no finger-pointing between suppliers.
- Long partnerships. Tiered pricing from 1 kg evaluation samples to full-container programs; NDA and confidentiality agreements as standard.
Why Xi’an
Shaanxi sits at the botanical crossroads of China. The Qinling Mountains — one of the most biodiverse temperate ranges on Earth — supply hundreds of medicinal herb species within a 200 km radius. The province hosts one of China’s densest plant-extract industry clusters, and Xi’an’s universities (Northwest A&F, Xi’an Jiaotong, Shaanxi Normal) feed us formulation and analytical talent. Being here means shorter sourcing distances, fresher botanicals and deeper technical partnership.
Partnering With Us
We work with three kinds of partners:
- Supplement brands sourcing standardized bulk extracts with full documentation
- Private-label clients launching finished solid beverages under their own brand
- Distributors and traders serving regional markets in the Americas, Europe, Middle East and ASEAN
Typical lead time for bulk extracts: 7-15 working days from PO to dispatch. For finished OEM sachets: 20-30 days depending on artwork finalization and packaging materials. MOQ from 1 kg evaluation to full-container volumes.