Can I clean Invisalign with baking soda?

You can use baking-soda–based cleaning methods for clear aligners in the sense that sodium bicarbonate (baking soda) is an ingredient in Invisalign’s Cleaning Crystals and baking-soda soaks/pastes are commonly used for cleaning removable trays, but Align Technology’s published materials specifically promote their branded Cleaning Crystals (dilute, soak, then rinse) rather than a homemade baking-soda paste or soak. [1, 2]

Quick takeaways

• Invisalign Cleaning Crystals list sodium bicarbonate (baking soda) among ingredients and are intended to be diluted in water for soaking.
• Clinics and reviews report baking-soda soaks/pastes are commonly used for cleaning aligners/retainers, but study protocols vary.
• Align’s documents emphasize using the branded cleaning crystals and do not state a general company endorsement of homemade baking-soda pastes/soaks for active Invisalign aligners. [2, 3]

What the manufacturer says

Align Technology’s product pages and FAQ describe and recommend the Invisalign Cleaning Crystals/Cleaning System: mix the crystals with water, soak the aligners or retainers, then rinse (and follow any brushing/rinsing instructions supplied). The ingredient listing for those branded crystals includes sodium bicarbonate (baking soda) or related sodium carbonate compounds. [1, 2]

The retrieved Align documentation emphasizes use of the branded cleaning crystals and does not present a broad company statement explicitly instructing patients to make homemade baking-soda pastes or soaks for active Invisalign aligners. [1]

Evidence and clinical guidance about baking soda

Independent studies and a systematic review of aligner-cleaning methods list baking-soda–containing products and baking-soda soaks among commonly studied cleaning options; clinical studies evaluate specific, standardized protocols (soak times, concentrations, and whether brushing or ultrasonic cleaning is added) rather than improvised home pastes. [3, 4]

Professional patient-facing guidance (for example AAO materials aimed at removable retainers) includes baking-soda paste or soak as an acceptable stronger/deep-clean method for retainers, though that guidance is framed for retainers (post-treatment) and not explicitly for active Invisalign aligners in the manufacturer’s documentation. [5]

Practical takeaway and safe approach

If you prefer a baking-soda approach, a practical and evidence-aligned option is to use a commercially supplied cleaner whose ingredients include sodium bicarbonate (for example the Invisalign Cleaning Crystals) and follow the product’s dilution and soak instructions rather than improvising an untested paste or soak. Independent sources do describe baking-soda soaks and pastes as cleaning options, but study results vary by method and exposure, and Align’s materials point patients to their branded cleaner. [1, 3]

How Smilo can help with aligner cleaning routines

Use Smilo to log and track your cleaning sessions: the app can record when you do a regular clean or a deeper soak, and you can set configurable reminders for scheduled regular- and deep-clean events so you don’t forget to follow whatever cleaning method (branded cleaner or clinic-recommended baking-soda routine) you choose.