Developing custom whitening strips involves more than just designing the right formula and packaging. Quality Control (QC) is a critical step that ensures your product performs consistently, is safe for consumers, and complies with industry standards. Whether you’re manufacturing in-house or working with an OEM supplier like Onuge, maintaining high-quality standards is essential for long-term brand success.
This checklist will guide you through the QC process for whitening strips, highlighting key tests, documentation, and best practices that ensure your product meets consumer expectations while minimizing risks.
Whitening strips must meet certain criteria to guarantee their safety and effectiveness:
Performance testing (whitening effect)
Adhesion quality (how well the strip stays on teeth)
Stability testing (shelf life, effectiveness over time)
Microbial safety (prevention of bacteria or mold growth)
Packaging integrity (ensuring the product is protected from moisture and contamination)
Onuge’s GMP-compliant production system covers all these aspects to ensure your product delivers the desired results to consumers while meeting regulatory standards.
Before manufacturing begins, ensure that all raw materials used in the whitening strips are safe, compliant, and of high quality. This includes:
Peroxide concentration (for peroxide-based strips) or PAP (for non-peroxide strips)
Film materials (ensure they’re safe and biodegradable)
Flavoring agents (ensuring safety and taste consistency)
Adhesive quality (ensuring the strips stay in place during use)
Performance Tests: Verify that your whitening strips deliver the promised whitening effect within the specified time frame. This involves testing the hydrogen peroxide or PAP concentration for effectiveness.
Sensory Evaluation: Consumers should not experience irritation, sensitivity, or an unpleasant aftertaste. Conduct sensory tests to evaluate consumer feedback on comfort, taste, and residue feel.
Tip: Work with experienced suppliers like Onuge, who use third-party labs for consistent testing across batches.
The adhesion of the whitening strip to the teeth is crucial for product performance. Conduct these tests to ensure optimal adhesion:
Peel test: Strip should be easy to peel off without damaging the teeth.
Adhesion time: The strip must stay in place for a specified period (e.g., 30-60 minutes).
Comfort test: The adhesive should not cause discomfort or leave residue when removed.
Onuge’s proprietary adhesion technology is designed to ensure that the strips perform well throughout the entire whitening session, without causing discomfort.
Whitening strips should be free from bacteria, mold, or other microbial contaminants. Microbial tests should be performed regularly:
Sterility tests: Ensure that no harmful microorganisms are present in the whitening strips.
Shelf-life testing: To ensure that microbial stability is maintained during the product’s life cycle.
Packaging hygiene: Check that packaging is sealed properly and resistant to external contaminants.
A whitening strip should maintain its effectiveness and safety over time. Conduct stability testing under various temperature and humidity conditions to determine the shelf life. This testing ensures that your product:
Remains effective throughout its life span
Doesn’t degrade due to environmental factors (e.g., temperature, moisture)
Meets labeling requirements for expiry dates
Packaging is a vital part of ensuring the safety and quality of the whitening strips. It must prevent contamination, moisture damage, and external contamination.
Moisture protection: Ensure the sachets are moisture-resistant to prevent degradation of the strips.
Sealing test: Ensure the sachet is properly sealed to maintain freshness.
Print verification: Verify that labeling is clear, accurate, and compliant with regulatory standards (e.g., ingredient list, expiration date).
Onuge provides high-quality packaging materials, designed to protect your whitening strips during transit and storage, ensuring maximum product integrity.
Regulatory standards vary by market, but compliance is essential. Make sure that your whitening strips adhere to the following:
Labeling compliance (ingredient disclosure, warnings, instructions)
Market-specific regulations (FDA approval for the U.S., CE marking for Europe)
Cosmetic claims substantiation (proving that your product delivers as advertised)
Onuge works with international regulatory bodies to ensure your whitening strips meet global market requirements from day one.
As an OEM/ODM whitening strip manufacturer, Onuge provides end-to-end quality control:
ISO 22716 certification ensures good manufacturing practices (GMP) for both cosmetic products and their raw materials.
In-house R&D and testing facilities help us maintain the highest standards.
Third-party lab validation is available for additional safety and regulatory compliance.
Customizable whitening strip solutions to meet your brand’s specific needs while maintaining top-tier quality.
Onuge also provides full batch traceability to ensure that each batch of whitening strips can be tracked through every phase of production, from raw materials to final product.
Developing high-quality whitening strips involves more than just creating a good formula—it requires a rigorous quality control process to ensure performance, safety, and regulatory compliance. By following a comprehensive QC checklist and partnering with a reliable supplier like Onuge, you can ensure that your whitening strips meet the highest standards and are ready to succeed in the market.
Ready to create your own custom whitening strips?
Onuge offers a complete QC process, from sample testing to production, so you can trust that your whitening strips will meet the highest standards of quality, performance, and compliance.
