Replace Your Toothbrush Every 3 Months

The Problem

Your toothbrush looks like it survived a war. Bristles are splayed in every direction.

The Hack

Replace your toothbrush or brush head every 3 months. Also replace immediately after illness. Set a phone reminder.

Why It Works

After 3 months of use, toothbrush bristles lose stiffness and fray, reducing their ability to remove plaque by up to 30%. They also harbor increasing amounts of bacteria even with rinsing.

Pro Tips

• Set a quarterly reminder: Jan/Apr/Jul/Oct
• Buy a 4-pack and swap each quarter
• After being sick, replace immediately
• Electric brush heads last the same 3 months