Frequently Asked Questions
Everything you need to know about our products, quality assurance, and logistics.
What is the purity of your peptide APIs? How do you ensure product quality?
The purity of each batch of our peptide active pharmaceutical ingredients (APIs) is no less than 99.4%, and the test results of this indicator are jointly evidenced by the Certificate of Analysis (COA), test reports from accredited third-party laboratories, as well as test reports from High Performance Liquid Chromatography (HPLC) and Mass Spectrometry (MS) analyses.
We ensure product quality through multiple measures:
1)Advanced Testing Equipment: We use imported Thermo Fisher analytical instruments, including UPLC, IC, HPLC, QE-MS, and GC, for rigorous product testing.
2)Comprehensive Quality Control System: We implement batch record review, controlled document management, deviation and CAPA (Corrective and Preventive Actions) management, and complaint management to ensure full traceability and compliance of the production process and product quality.
Do you accept third-party testing for your products?
We accept third-party testing of our products and are fully confident in the test results. For customers planning to place bulk orders of 1 kg and above, we can provide free samples as required, and support customers to send the samples to any third-party laboratory worldwide for secondary verification of product purity and high-performance liquid chromatography (HPLC) indicators.
Do you have DMF certifications?
Our DMF filing status is as follows:
DMF filings for two of our products, Tirzepatide (DMF No. 042984) and Retatrutide (DMF No. 043330), have all been submitted to the U.S. Food and Drug Administration (FDA). In January 2026, the filing information for both products was officially published and made available for inquiry on the FDA official website, with the filing status marked as Active for both. Relevant DMF filing applications in Russia and other countries and regions are also being advanced and planned in parallel.
What is your minimum order quantity? Can you provide free samples?
1) Minimum Order Quantity (MOQ)
For standard products listed in our catalog: there is no minimum order quantity (MOQ) for first-time orders, and we accept trial orders of 1 gram to facilitate your testing of product quality and logistics clearance efficiency. A minimum order quantity will apply to repeat orders, and specific details can be confirmed with our sales representatives.
Note: The minimum packaging specification is 1g/bottle.
For customized products not listed in our product catalog: please confirm the supply feasibility and minimum order quantity (MOQ) with our company in advance.
2) Sample Fee
Our products are high-purity and high-value, so free samples are generally not provided. Sample fees will be calculated based on the actual order quantity. For customers placing orders of kilogram scale or above, we can provide an appropriate amount of free samples as requested (usually, the freight cost shall be borne by the customer).
Do your products comply with GMP standards?
Our factory's manufacturing processes and quality control systems are established in compliance with cGMP quality standards, and all products are manufactured in full accordance with relevant cGMP requirements. Specifically, Utide's quality system is designed in line with the international norms of cGMP standards, equipped with key instruments and equipment including Thermo Fisher Vanquish Flex UPLC/UPLC-MS, Gas Chromatograph (GC), Dionex EASION Ion Chromatograph (IC), moisture meter and JH-P300 Automatic Polarimeter. Our quality control covers the entire process including incoming material inspection, production process management, finished product inspection, material traceability, purity deviation handling, sample retention management and batch record keeping, etc. A comprehensive deviation management process has been established, and all CAPA corrective and preventive actions are closed out within one month. To ensure the consistency of products across different batches, we inspect all materials against unified standards, and all materials are sourced from the qualified supplier list with quality control implemented starting from the starting material stage. Meanwhile, we have formulated standard operating procedures for production processes, which are strictly followed in each batch production. The processes have been verified and inspected through multiple production batches, with the test results of product impurity profiles and various characteristics all complying with quality standards, and the inter-batch test results remaining highly consistent.
Do you cooperate with logistics companies for international shipments? Could you assist with handling customs clearance and duty issues?
We have in-depth cooperation with professional freight forwarders specialized in chemical and pharmaceutical logistics, with a service network covering most regions worldwide, providing dual guarantees of timeliness and safety for customers' cargo international transportation. We will match flexible and tailored shipping terms according to customers' actual situations. The relevant supporting services for transportation, customs clearance and tariffs are as follows:
1. If the customer is able to handle the import customs clearance on their own:
We support shipping terms such as CFR, CIF, CIP and DAP, and can deliver the goods to the airport or the designated delivery address by the customer. Meanwhile, we will assist in providing HS code, COA, MSDS and other documents required for customs clearance to help the customer smoothly complete the local import customs clearance procedures.
2. If the customer is unable to handle the import customs clearance on their own:
For certain countries and non-remote addresses, we can provide the DDP (Delivered Duty Paid) term, and be responsible for the entire process from cargo shipment, customs clearance to tariff payment, until the goods are delivered to the customer's designated delivery address.
Important Notes:
- The specific shipping terms and the requirements for supporting documents for customs clearance need to be confirmed with our company in advance.
- The scope of countries covered by the DDP service needs to be confirmed with our company in detail, and this service cannot ensure the smooth progress of the entire customs clearance process with 100% certainty. Customer cooperation and assistance may be required in some cases.
- The tax rate and actual amount of import tariffs shall be strictly in accordance with the relevant regulations of the customer's country/region, and settled based on the actual amount on the tax bill, with overpayment refunded and shortage made up.
What is the delivery lead time and delivery time of the products?
1）Shipping Time :
Standard Product: we usually arrange shipment within 2-3 working days after receiving the full payment for the order.
Customized Products: the lead time for customized products is approximately 6–8 weeks. Given that requirements vary for each customized project, the exact delivery date will be finalized with the customer prior to project commencement, and we will follow up on the progress throughout the process and update you in a timely manner.
2）Transit Time：
The specific duration depends on the destination region and the selected logistics plan. Generally, shipments to North America and Europe take about 7–15 working days, while those to other regions take about 10–20 working days. The exact Estimated Time of Arrival (ETA) can be queried only after you provide the detailed delivery address.
How do you ship your Peptide APIs?
1）All peptides are shipped from our manufacturing facility in Zunyi City, Guizhou Province, China to the customer-designated delivery address or airport via various couriers (FedEx, UPS, DHL, etc.) or air carriers.We confirm the specific delivery details with the customer prior to shipment. On the day of dispatch, we will send the customer an email with the shipping tracking number for easy parcel tracing when needed.
2）We offer three cold chain shipping solutions for peptide APIs, which can be selected as required, details are as follows:
① Standard Solution: EPP foam box + ice packs
Depending on the carton specification and ice pack dosage, the temperature of 2–8℃ can be maintained for 2 to 4 days; the global courier shipping cycle is about 7 days, and the period exceeding 2 to 4 days will be under ambient temperature shipping. Rest assured, verified by our laboratory tests, our peptide APIs feature stable activity for 4 to 6 months under ambient temperature, fully supporting ambient temperature transportation.
② Upgraded Solution: EPP foam box + ice packs + supporting cold storage at origin and transit ports
The temperature of 2–8℃ is maintained throughout the entire shipping process.
③ Premium Solution: Professional medical temperature-controlled container + supporting cold storage at origin and transit ports
The temperature of 2–8℃ is maintained throughout the entire shipping process.
The packaging solution tailored to your order and the specific costs can be confirmed with our sales representative.
3）Upon receiving the API products, the customer shall immediately store them at -20℃ or below.
Attached is the detailed storage temperature instruction for peptide APIs:
① For short-term storage (within a few weeks), refrigeration at 2–8℃ is preferred;
② For long-term storage (several months to years), freezing at -20℃ or below is recommended.
Whether refrigerated or frozen, the products must be stored in a sealed condition, protected from light and moisture;
When refrigerated, large temperature fluctuations inside the refrigerator should be avoided.