HiSiaddi is an innovative foreign trade service provider driven by both technology transformation and foreign trade. It has established a "1+2+3+4=1" service system and can supply L-carnitine L-tartrate sourced directly from multiple well-known original manufacturers. As a foreign trade enterprise with independent R&D capabilities, HiSiaddi has collaborated with manufacturers on technology transformation and accurately captured market demands, repeatedly resolving customized product requirements for L-carnitine L-tartrate clients. Below is a case of HiSiaddi delivering customized L-carnitine L-tartrate solutions.
Please contact HiSiaddi customer service if you need further customized services.
Purchaser: EliteSport Laboratory Group, California, USA. A North American professional dietary raw material brand exclusively supplying competitive athletes, it specializes in post-competition repair powders and high-end glycemic control special dietary capsules for athletes. Its products are supplied to NBA and NCAA cooperative fitness facilities and premium organic pharmacies across the United States, complying with USP Pharmacopoeia, U.S. GRAS standards, cGMP specifications and non-GMO clean label requirements. Its annual demand for customized L-carnitine L-tartrate totals 22 tons.
The client previously sourced patented raw materials imported from Switzerland but planned localized customization to cut supply chain costs. However, multiple conventional domestic manufacturers could only supply standard national standard off-the-shelf powder, failing to meet five exclusive customized indicators set by the client. These manufacturers lacked customized production lines for refined crystallization and particle size regulation, resulting in failed mass production after multiple sample trials. The client entrusted HiSiaddi to fully deliver integrated customization covering full formulation, physical properties and packaging.
1. Precise control of active ingredient content: Free L-carnitine fixed at 68.0%±0.3% (common commercial variants fluctuate ±1.0%). Full testing conducted in accordance with USP47-NF42 pharmacopoeia, with solvent residues complying with ICH Class III limits.
2. Customized particle size and flowability: D90 = 45–55 μm, angle of repose ≤38°, free of caking or feeder blockages during high-speed automatic mixing, compatible with the client’s fully automatic powder canning production line.
3. Low moisture absorption customization: Moisture ≤0.25%, water activity Aw＜0.42, suitable for long-term storage during transoceanic shipping under high temperature and humidity in North America, ensuring no moisture absorption or discoloration of finished products within a 24-month shelf life.
4. Strict impurity control customization: Heavy metals lead ≤2 ppm, arsenic ≤0.5 ppm; free of exogenous plant protein and irradiation. Non-GMO and allergen exemption certificates available for vegetarian and vegan formulations.
5. Exclusive packaging customization: 25 kg fiber drums with custom printed English brand information on the outer layer, lined with food-grade aluminum foil vacuum moisture-proof inner bags. Each drum comes with an independent bilingual batch COA testing certificate.
Three domestic manufacturers contacted could only produce standard national standard grade products (moisture above 0.5%, uneven particle size, large content fluctuations) and refused to invest in production line modifications for small-batch customized sampling, halting the client’s customization project.
HiSiaddi selected Zhejiang Chengda Pharmaceutical, a national drafter of L-carnitine national standards with full certifications including FSSC22000, KOSHER and HALAL. It features a pilot workshop for refined crystallization and patented crystal form regulation technology, enabling flexible adjustments to crystallization, drying, crushing and classification procedures for high-end customized development.
1. Collaborated with the manufacturer’s R&D department to adjust salt-forming ratio and cooling crystallization rate: controlled the molar ratio of L-tartaric acid to L-carnitine, adopted segmented gradient cooling crystallization to precisely lock crystal morphology and stabilize the proportion of active ingredients at the source.
2. Optimized negative-pressure low-temperature drying technology to replace conventional hot-air drying, reducing product moisture from the standard 0.5% to ≤0.23% to meet low water activity and moisture-proof customization requirements.
3. Added air-flow crushing and classification procedures to accurately control particle size range, achieving D90 of 45–55 μm and free-flowing powder performance.
· First small trial: 5 kg laboratory sample, subjected to physical and chemical testing and accelerated stability testing by the U.S. laboratory, with crystallization parameters fine-tuned accordingly.
· Second pilot trial: 50 kg pilot mass production, small-batch mixing test on the client’s production line to resolve minor agglomeration issues.
· Final mass production sample: 200 kg finalized sample, passing a 3-month accelerated storage test conducted by the client with all customized indicators fully compliant.
1. Coordinated packaging manufacturers to develop customized fiber drums printed with the client’s brand LOGO, raw material name and storage conditions. Inner bags made of thickened oxygen-barrier aluminum foil with vacuum sealing and built-in desiccants for moisture resistance during transoceanic shipping.
2. HiSiaddi customized a full set of documents in compliance with U.S. import regulations for each batch: bilingual Chinese-English COA meeting USP standards, SDS, free sales certificate, official non-irradiation and non-GMO statements to satisfy U.S. FDA import filing and inspection requirements.
1. The first customized order of 6.2 tons arrived at Los Angeles Port, USA and cleared customs smoothly. The client achieved a 100% qualified rate for full-line mass production, with canning efficiency improved by 7% compared to the original Swiss imported raw materials.
2. An annual framework customization order of 22 tons was finalized, scheduled for monthly production across 8 batches. The client’s raw material procurement cost decreased by 35% versus Swiss imports.
3. Based on this successful customization project, the client additionally placed customized procurement orders for its Canadian and Australian distribution sub-brands.
1. EliteSport Group (USA): Completed localized customized replacement of high-end raw materials. Its new post-competition athlete repair powder was successfully launched at thousands of high-end fitness institutions across North America, driving a 26% quarter-on-quarter revenue growth for the single product and breaking free from the supply monopoly of overseas patented raw materials.
2. Chengda Pharmaceutical: Secured a stable annual high-end order from North America. Its customized high-purity grade products command a 42% premium over standard national standard bulk products, allowing it to escape low-price competition in the domestic raw material market and leverage this benchmark client to expand customized business with multiple European and American special dietary brands.
3. HiSiaddi Foreign Trade: Established a one-stop customized service model for L-carnitine L-tartrate covering physical property customization, process improvement, packaging customization and compliance documentation. It subsequently undertook customized raw material projects for multiple mid-to-high-end nutrition brands in the EU and New Zealand.
Most domestic L-carnitine manufacturers focus on standardized bulk production and are unwilling to invest in production line technical upgrades to undertake refined customized orders. Mid-to-high-end overseas special dietary and sports nutrition brands are restricted by their own formulations, automated production lines and national drug regulatory regulations, making standard off-the-shelf raw materials unfit to meet personalized indicator requirements. Leveraging resources from upstream leading pharmaceutical manufacturers and professional technical coordination capabilities, HiSiaddi streamlines the full chain of process customization, sample iteration and packaging customization. It not only fulfills clients’ exclusive customization needs to reduce costs and improve efficiency, but also supports premium domestic pharmaceutical enterprises in entering the global high-end nutritional raw material supply chain.
Please contact HiSiaddi customer service if you need further customized services.
+86-13120989737 
info@hisiaddi.com 
English
