How Often Should I Soak Invisalign Trays?
Oral Health Blog

How Often Should I Soak Invisalign Trays?

You should soak your Invisalign trays at least once a day to keep them clean and free of bacteria. Use a purple persulfate-free retainer cleaner for soaking, as it effectively cleans without harsh chemicals, ensuring your trays remain hygienic and clear.

Why Soak Your Invisalign Trays?

Prevent Bacteria Buildup

Invisalign trays are in constant contact with your teeth and gums, creating an environment where bacteria can easily thrive. Regular soaking helps to eliminate bacteria, reducing the risk of infections and bad breath.

Remove Plaque and Stains

Over time, plaque and stains can build up on your Invisalign trays. Soaking them helps to break down these deposits, keeping your trays clear and your smile bright.

Ensure Effective Treatment

Clean trays fit better and work more effectively. Proper maintenance, including regular soaking, ensures that your trays function as intended, aligning your teeth efficiently.

How Often Should You Soak Your Invisalign Trays?

Daily Soaking Routine

For optimal hygiene, it is recommended to soak your Invisalign trays at least once a day. This daily routine helps to maintain cleanliness and prevent any buildup of bacteria and plaque.

Weekly Deep Cleaning

In addition to daily soaking, performing a deeper clean once a week can provide extra assurance that your trays are thoroughly sanitized and free from any stubborn buildup.

Best Practices for Soaking Invisalign Trays

Use Persulfate-Free Purple Cleaning Tablets

Using the appropriate cleaning solution is vital for maintaining the integrity of your Invisalign trays. Persulfate-free purple cleaning tablets are an excellent choice as they are gentle on your trays while effectively removing plaque and bacteria.

How to Soak Your Invisalign Trays with Persulfate-Free Purple Tablets

  1. Rinse First: Before soaking, rinse your trays under lukewarm water to remove any loose debris.
  2. Prepare the Solution: Follow the instructions on your persulfate-free purple cleaning tablets to prepare the solution. Typically, dissolve one tablet in a container of lukewarm water.
  3. Soak the Trays: Place your trays in the solution and let them soak for the recommended amount of time, usually about 15-20 minutes.
  4. Rinse Again: Rinse the trays thoroughly under lukewarm water to remove any residual cleaning solution.
  5. Dry Before Use: Allow your trays to air dry completely before reinserting them or storing them in their case.

Additional Tips for Tray Maintenance

Avoid Harsh Chemicals

Never use harsh chemicals or abrasive materials to clean your trays. These can damage the plastic and reduce the effectiveness of your aligners. Stick to recommended cleaning solutions like persulfate-free purple tablets.

Clean Your Case

Your Invisalign case can also harbor bacteria if not cleaned regularly. Use a mild soap and water to clean your case, and ensure it is completely dry before storing your trays.

Maintain Oral Hygiene

Brushing and flossing your teeth before reinserting your trays prevents transferring food particles and bacteria into the trays, keeping both your teeth and aligners clean.

Use Lukewarm Water

Always use lukewarm water for rinsing and soaking your trays. Hot water can warp the plastic, and cold water might not effectively clean them.

Common Mistakes to Avoid

Using Toothpaste

Toothpaste can be too abrasive for Invisalign trays, causing tiny scratches that can harbor bacteria and make the trays less clear. Avoid using toothpaste to clean your trays.

Skipping Rinsing

Failing to rinse your trays after meals can lead to food particles getting trapped, promoting bacteria growth and bad breath. Always rinse your trays before reinserting them.

Prolonged Soaking

Do not soak your trays for longer than recommended. Prolonged exposure to cleaning solutions can damage the plastic.


Properly soaking your Invisalign trays is essential for maintaining their effectiveness and ensuring your oral hygiene. A daily soaking routine using persulfate-free purple cleaning tablets, supplemented by a weekly deep clean, will keep your trays free from bacteria, plaque, and stains. Always use the recommended cleaning solutions and follow best practices to ensure your trays remain in top condition. By taking these steps, you can ensure that your Invisalign treatment progresses smoothly, leading to a perfect, healthy smile.

Are you currently using or thinking about using retainer cleaning tablets? It's important to be aware that certain cleaner brands have the potential to cause toxic reactions.

It's crucial to be aware of harmful ingredients hiding in common cleaner brands. One such persulfate, which can pose SERIOUS health risks and is found in almost all leading retainer cleaners brands. Moreover, persulfate's health risks potentially impact respiratory health and skin sensitivities in your family, especially in teens and sensitive individuals. Learn more about the risk of persulfate HERE. 



The content in this article is for informational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider before making any changes to your health regimen. The author and publisher do not take responsibility for any consequences resulting from the information provided in this article.