Colgate PreviDent Dental Rinse — 0.2% Sodium Fluoride Prescription Mouthrinse

Colgate PreviDent Dental Rinse is a prescription 0.2% sodium fluoride mouthrinse that delivers high-strength fluoride to strengthen enamel and protect against cavities. It is the rinse companion to prescription-strength fluoride toothpastes, adding an extra weekly layer of decay protection for people at elevated cavity risk.

The 0.2% neutral sodium fluoride concentration is roughly four times the fluoride of a standard over-the-counter rinse, which is why it requires a prescription. It coats the teeth — including areas a brush can miss, like between teeth and along the gumline — to remineralize enamel and resist the acids that cause decay.

How to use

Rinse with 10 mL (two teaspoons) once a week, preferably at bedtime after thoroughly brushing your teeth. Swish vigorously around and between the teeth for one minute, then spit — do not swallow. Avoid eating, drinking, or rinsing for 30 minutes afterward so the fluoride stays on the teeth. Follow your dentist’s specific instructions.

Who it's for

Adults at higher risk of cavities who want an easy, brush-free way to add prescription-strength fluoride to their routine — including those with frequent decay, exposed root surfaces, orthodontic appliances, or reduced saliva. Your dentist will confirm it's right for you through a brief telehealth review.

Related reading from Soothing Dental: non-invasive cavity prevention.

Frequently Asked Questions

How is this different from ACT or other over-the-counter fluoride rinses?

Over-the-counter fluoride rinses are about 0.05% sodium fluoride for daily use. PreviDent Dental Rinse is 0.2% — roughly four times stronger — and is used just once a week, which is why it requires a prescription. It’s intended for people who need more decay protection than a standard daily rinse provides.

How often do I use it — daily or weekly?

Once a week. The 0.2% concentration is designed for weekly use, preferably at bedtime after brushing. Studies show about a 55% reduction in cavities with regular weekly use. Always follow your dentist’s directions.

Can I use it with my prescription fluoride toothpaste?

Yes. Many high-cavity-risk patients brush daily with a 5000 ppm fluoride toothpaste and add this rinse once a week for layered protection. Your dentist can confirm the right routine for you.

Is it alcohol-free?

PreviDent Dental Rinse is available in an alcohol-free formulation, which is gentler on the soft tissues and a good choice for people with dry mouth or sensitivity. Check the product label for the version you receive.

Do I need a prescription?

Yes — 0.2% sodium fluoride rinse is a prescription product. Soothing Dental’s team reviews your eligibility through a brief telehealth screen, and a complimentary Rx review is included with your order.