LYSINE-PROLINE-VALINE KPV Factory direct supply from Chinese manufacturers at competitive prices

Liaocheng Yixin Trading Co., Ltd. is a manufacturer specializing in the research, development, production, sales and service of tanning products, such as tanning sprays, tanning drops, cosmetic peptides, and polypeptides. We always regard the value of our customers as our top priority. We focus on high quality, competitive prices, flexible order quantities, and timely delivery. Our products are mainly exported to customers in European countries, the United States, and Australia. Our products are widely recognized and trusted by users. We also welcome OEM and ODM orders. Being in cooperation with all brands is a great honor and privilege, regardless of whether the brand is a start-up enterprise. We look forward to your every visit. We welcome both new and old customers to contact us to establish future business relationships and achieve mutual success together! Our multilingual team is proficient in international trade regulations and provides end-to-end services ranging from market research, product procurement, quality control, customs clearance to logistics management, ensuring safe and efficient transactions. Customer-centricity and compliance are our cornerstones. We prioritize product quality, timely delivery, and risk mitigation. Through professionalism and accountability, we build trust and become the most reliable global trading partners. We elevate "Made in China" to the world stage and redefine cross-border commerce with simplicity and intelligence.

customer feedback

How to complete your order:
• Step 1: Please tell me your preferred items, quantity and destination country.
• Step 2: You confirm all details and submit your purchase order.
• Step 3: We will send the detailed price of the product and provide suitable shipping methods for your reference.
• Step 4: You must confirm the order and payment 100% in advance and send us your detailed contact information, including contact person/company, address, mobile phone number, postal code and your special requirements.
• Step 5: We will arrange shipment according to your requirements. Tracking codes will be provided once shipment is completed. You can track your package at any time.
• Step 6: We provide after-sales service. We will provide service after you receive the package.

Logistics & Shipping Information 1. Stock Status: In stock, delivery within 1–3 working days after payment confirmation 2. Cold Chain Standard: All peptide products shipped with ice bags & thermal insulation foam box to avoid powder degradation during transit 3. Optional Shipping Channels ◦ DHL Express: 5–7 working days, door-to-door delivery, trackable online, suitable for small samples below 1kg ◦ FedEx / UPS International: 6–9 working days, stable logistics for North America, Europe ◦ Air Freight Bulk Order: 10–15 working days, cost-effective for mass orders over 5kg ◦ Sea Freight: 30–40 days, for large wholesale bulk cargo 4. Customs Support: We provide full export documents (commercial invoice, packing list, MSDS, chemical identification certification) to help clients clear customs smoothly. 5. Shipping Note: Peptides are sensitive to high temperature; we strictly use cold chain packaging all year round. Remote areas may extend delivery time by 2–3 days.

FAQ
Q1. How do you ensure product quality?
1. We have a strict quality management system in place. All batches must pass tests and meet our standards before being released into the warehouse.2. We will recheck and confirm product quality before delivery.3. We can send samples to a third-party testing agency to obtain a testing report if necessary.

Q2. Do you offer samples?
We can provide samples for most of our products free of charge. Please cover the cost of express shipping.

Q3. What is your lead time for a new order?
For most products in stock, the delivery time is 3-5 business days after payment receipt. For customized products, please discuss further. Q4: Are you manufacturer or trading company?
We are manufacturer, peptides are our main product.

04.What is our MOQ?
A:One box,ten vials per box.

05.Have your Product Quality been Approved by Third Party Lab?
A: Yes, we can provide COA and lab test report. So you will be assured with Good Quality if you choose us.

06.Is OEM logo and packaging available ?
A:Yes,we can customize your logo colors on products and make personalized packaging.

07.What is our shipping methods?
A:According to your countries, different countries, different shipping methods for safe and fast delivery.Almost can be DDP.

Product Details