How do you validate preservative performance for eye care (micro risk control)?

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.

• For eye-area formulas, we start with a micro-risk assessment (water content, pH, packaging exposure) and build a preservative system accordingly, then screen it in our in-house microbiology capability (including a dedicated microbial challenge room and our patented cosmetic biochemistry incubator).
• We do preservative efficacy (challenge) testing and microbiological limit testing, and we can also coordinate third-party testing and tracking of reports via our long-term testing collaboration with the Guangzhou cosmetics inspection lab.
• On the documentation side, we can provide manufacturing quality-system support (ISO 9001:2015), and can support environmental/ethical positioning with REACH compliance and no-animal-testing alignment where applicable.
• We also support barcode/label info, and can help arrange clinical testing support to substantiate safety/effectiveness claims (without implying regulatory approval).
• Timelines: overall brand one-stop delivery is typically 45-60 days; bulk production is usually 10-20 working days once the formula and sample are confirmed.
• Packaging sourcing often takes 10-30 working days (e.g., glass bottle ~15 days, acrylic bottle ~30 days, tube ~15 days).
• MOQ is confirmed case-by-case after formula and packaging are locked to control risk and cost.