As an innovative foreign trade service provider driven by technological transformation and export business, HiSiaddi has built a "1+2+3+4=1" service system and can supply Polysorbate 80 sourced directly from multiple well-known original manufacturers. As a tech-focused foreign trade enterprise, HiSiaddi has collaborated with factories on technological transformation and accurately captured market demands, repeatedly proposing Polysorbate 80 formulation optimization solutions and application improvement recommendations. Below is a case illustrating HiSiaddi’s formulation optimization consulting service for Polysorbate 80. Contact HiSiaddi’s customer service for more formulation optimization consulting inquiries.
BioElixir, a mid-to-high-end organic skincare brand headquartered in Madrid, Spain, specializes in salon high-activity transparent serums, organic repair body lotions and plant extract soothing toners. Its products are sold at El Corte Inglés luxury department stores across Spain and chain organic pharmacies in Portugal, fully complying with EU Cosmetics Regulation 1223, COSMOS Organic Certification, IFRA and CPSR safety assessments. For a decade, the brand exclusively sourced Croda Super Refined Polysorbate 80 as its emulsifying raw material.
Faced with surging European raw material prices, extended sea transit cycles and limited small-batch scheduling from the original supplier, the client purchased domestic refined Polysorbate 80 via HiSiaddi. After the first batch of 22 tons arrived, the brand directly adopted its original European formulation and factory production processes for mass manufacturing, triggering three critical formulation and operational failures that halted three production lines and put nearly 4 tons of semi-finished products at risk of scrapping. The client’s formulation team spent one week troubleshooting without identifying root causes and fully entrusted HiSiaddi’s technical team to diagnose the issues, optimize raw material indicators, adjust end formulations and revamp mass production processes.
1. Failure 1: Transparent Vitamin C serum turns turbid after 15 days at room temperature, with white flocculent precipitation and accelerated Vitamin C degradation under 5°C cold storage Croda’s raw material features ultra-low impurities and uniform EO addition. The domestic off-the-shelf raw material contained high free saponifiers and trace residual catalysts. In the weak-acid Vitamin C system (pH 4.3) of the formulation, saponifiers complex with Vitamin C to form precipitates. Meanwhile, the actual HLB value deviated 0.4 from the labeled value, reducing solubilization capacity and preventing stable dispersion of plant essential oils, leading to flocculent precipitation under cold storage and loss of the transparent visual selling point of the serum.
2. Failure 2: Organic maternity & infant lotion undergoes emulsion breaking and oil-water separation mid-homogenization in emulsification kettles; the first half of each batch meets homogenization standards while the second half separates The client’s factory followed the European feeding sequence: simultaneously heating oil and water phases to 72°C before adding Tween 80 for homogenization. The domestic Polysorbate 80 had a high peroxide value, which oxidized rapidly upon high-temperature feeding and destroyed the interfacial film. Combined with high free acid in the raw material that slowly reacted with plant oils in the formulation, the system lost balance in the later homogenization stage, rendering half of each 3-ton batch unqualified and forcing intermittent production line shutdowns.
3. Failure 3: Finished products showed slightly elevated skin irritation in sampling tests, failing Spain’s local CPSR safety assessment and triggering temporary suspension of supermarket warehousing The domestic raw material contained trace residual dioxane and oxidized unsaturated terpene impurities, which are removed via secondary molecular distillation in Croda’s Super Refined grade. Positioned as alcohol-free, low-irritation maternity & infant products, the trace impurities pushed skin irritation readings above EU limits for leave-on skincare products, delaying the scheduled new product launch.
Domestic suppliers could only adjust basic content to meet national standards and lacked end-formulation application expertise for cosmetic products—they were only able to slightly tweak acid values, unable to implement closed-loop rectification covering raw material deep refining, formulation ratio adjustment and production process optimization.
HiSiaddi assembled a dedicated task force of emulsifier engineers, cosmetic formulators and on-site process specialists to deliver closed-loop optimization covering raw material refining upgrade, end-formulation fine-tuning and factory SOP revision, retaining the original core formulation architecture while accommodating the characteristics of domestic raw materials.
1. Coordinated the manufacturer to conduct secondary negative-pressure molecular distillation on remaining in-stock raw materials to strip residual ethylene oxide, dioxane, free saponifiers and oxidized impurities. The peroxide value was reduced from the original 3.8 meq/kg to ≤1.9 meq/kg, free acid from 1.2 mgKOH/g to ≤0.7 mgKOH/g, and dioxane controlled at 2.8 ppm to meet COSMOS organic raw material internal standards.
2. Precisely calibrated HLB values via GC testing of EO addition volume and adjusted raw material composition to lock the measured HLB at 15.0±0.1, matching the emulsification balance required by the client’s O/W serum and lotion systems and compensating for insufficient solubilization performance.
3. Finished products were hermetically sealed under nitrogen to prevent oxidation during sea transportation and storage. CNAS full-test COAs were issued with measured impurity data for CPSR filing.
1. Vitamin C transparent serum: Reduce the original Polysorbate 80 dosage from 2.2% to 1.85% and add 0.3% hydrogenated castor oil as a co-solubilizer to form a composite emulsification system that enhances essential oil solubilization. Supplement 0.08% food-grade citrate buffer to stabilize formulation pH and reduce complexation reactions between raw material free impurities and Vitamin C. After 60 days of accelerated thermal cycling between -5°C and 45°C, no turbidity or precipitation occurred, and Vitamin C retention matched the original Croda formulation.
2. Maternity & infant repair lotion: Add 0.25% lecithin as an auxiliary stabilizer and adjust oil phase ratios to reduce high-unsaturation plant oil content, mitigating oil rancidity triggered by impurities. The modified composite emulsification system effectively alleviated high-temperature oxidation-induced emulsion breaking.
1. Core process adjustment: Abolish the original high-temperature simultaneous oil-water feeding method. Optimize the workflow to pre-dissolve Polysorbate 80 fully with the oil phase at room temperature, cool to 55°C before slowly blending into the water phase, and perform homogenization twice at a reduced pressure of 38 MPa (down from 50 MPa) to avoid accelerated raw material oxidation and emulsion breaking at high temperatures.
2. Raw material storage control: Mandate storage of domestic Polysorbate 80 in sealed warehouses at a constant 20°C; opened raw material must be fully consumed within 48 hours to prevent air exposure and oxidation. HiSiaddi issued bilingual Spanish-English production SOP documents and provided on-site training for operators and quality control staff.
3. Establish incoming material rapid testing protocols: Pre-test three critical indicators (acid value, peroxide value, HLB) upon raw material arrival; reject unqualified batches before feeding to eliminate risks at the production front end.
1. Sample verification: Small trials combining upgraded raw materials and revised formulations passed all sensory, stability and skin irritation testing at Spanish laboratories. The 4 tons of unqualified semi-finished inventory were reworked with supplementary optimized excipients and converted into eligible finished goods, recovering approximately 9,200 Euros in raw material and packaging costs.
2. Mass production of remaining goods: The 22 tons of rectified raw materials were split into three production batches. Twelve consecutive mass production runs delivered zero emulsion breaking or turbidity issues. Finished products successfully passed Spain’s CPSR safety assessment and were launched on schedule at luxury department stores and organic pharmacies nationwide.
3. Long-term cooperation rollout: Localized procurement costs were 29% lower than original Croda imports, with lead times shortened from 75 days to 33 days. The client canceled subsequent European import orders and signed a 130-ton annual long-term procurement contract with HiSiaddi. All skincare raw materials for its subsidiaries in Portugal and Greece now adopt the refined customized Polysorbate 80 optimized by HiSiaddi.
1. Industry-wide pain point: Domestic emulsifier manufacturers produce Polysorbate 80 against national standards, prioritizing content indicators with limited end-formulation R&D capacity for cosmetic applications. They lack familiarity with stringent EU requirements for trace impurities, compatibility stability and low-temperature storage for premium organic skincare. European and American mid-to-high-end skincare brands rely long-term on imported super-refined raw materials and standardized production processes; direct substitution with domestic raw materials frequently leads to failed formulations and production line shutdowns.
2. Procurement characteristics of mid-to-high-end clients: Products carry high premium prices and strict channel access regulations. Brands prioritize finished product stability and regulatory compliance over raw material costs, and cannot accept brand removal from shelves or consumer complaints stemming from raw material defects.
3. Core value of HiSiaddi: Integrating raw material refining technology and end cosmetic formulation expertise, we deliver closed-loop optimization covering upstream raw material upgrading and downstream formulation & production process adjustment. We adapt domestic raw materials to client formulations while refining on-site production operations, providing one-stop solutions to resolve full-chain technical barriers for localized import substitution.
Contact HiSiaddi’s customer service for more formulation optimization consulting inquiries.
+86-13120989737 
info@hisiaddi.com 
English
