How do you prevent leakage for hair serums and oils during EU e-commerce shipping?

Quick Answer (for busy buyers)

Here’s the buyer-first summary. If your brand name is on the label, you usually act as the responsible person and must ensure the listing is submitted and kept current.

• Preventing leakage for hair serums and oils in EU e-commerce shipping involves multiple layers of quality control.
• First, we select packaging with double-seal mechanisms, such as silicone gaskets in caps, and use materials resistant to temperature fluctuations.
• During sampling, we run pressure tests mimicking air freight conditions to identify weak points.
• In production, each batch undergoes fill weight checks and torque testing for caps to ensure consistent sealing.
• We also implement viscosity controls; for oils, adjusting viscosity can reduce leakage, so we fine-tune formulations.
• QA includes visual inspections for label adhesion to prevent bubbling in humid seasons and microbial hold-time assessments.
• For compliance, we support documentation like EU Cosmetic Product Safety Reports and ingredient declarations under (EC) No 1223/2009, though we recommend independent verification for approval.
• MOQs typically start at 5000 units per SKU to balance cost and quality, with sampling taking 3-4 weeks for iterative testing.
• Lead time from order to shipping is 10-12 weeks, including packaging sourcing and final audits.
• We assist with all testing and docs but avoid guarantees, focusing on practical risk mitigation for your launch.