A little clarity goes a long way.

Your questions, answered.

Find your formula, get to know your routine, or get help with an order.

Choosing your products

Which toothpaste should I choose?
  • Happy Mint: 5% nano-hydroxyapatite for enamel care, with enzymes to help lift surface stains. Fluoride-free.
  • Charcoal Icy Mint: nano-hydroxyapatite, activated charcoal and baking soda for everyday polishing. Fluoride-free.
  • Wintergreen Peppermint: fluoride for cavity protection and potassium nitrate for sensitivity relief.
  • Cooling Spearmint: fluoride cavity protection with a fresh spearmint flavor.
What is Gum Shield Mouthwash?

An alcohol-free mouthwash with CPC, an ingredient that helps control plaque that leads to gingivitis and bleeding gums. Gum Shield has a mild Shield Mint flavor and comes in a 20 fl oz bottle.

Explore Gum Shield

What makes Triple Floss Picks different?

Three wax-coated strands form a net-like design to help catch and lift trapped food. Strong Mint flavor, a textured grip and a built-in toothpick. No cutting or wrapping needed.

The separately sold pack contains 300 picks. The Complete Oral Care System includes 75 picks.

Meet Triple Floss Picks

Which toothbrush is right for me?

Stadium has three tiers of soft bristles and a soft-touch gel handle. Our Triple Head Toothbrush has bristles arranged to contact three sides of the teeth. The kids version has a smaller head.

Choose a comfortable fit. Your dental professional can help if you have specific brushing needs.

Can children use TWICE products?

Our Kids Triple Head Toothbrush is sized for smaller mouths. Toothpaste and mouthwash age directions vary by formula, so check the package and supervise brushing. Fluoride-free does not automatically mean suitable for every age.

Your child’s dentist can help you choose the right toothpaste and amount.

Where can I buy TWICE?

Shop the full online collection here at smiletwice.com. You can also find TWICE at Walmart and on Amazon; products and availability vary.

Shop TWICE

Your daily routine

What order do you recommend?

Rinse first. Floss second. Brush third. That’s TWICE’s preferred routine. Use each product as directed on its package and follow any personalized instructions from your dental professional.

What comes in the Complete Oral Care System?
  • Happy Mint and Charcoal Icy Mint toothpastes, 3.4 oz each
  • Gum Shield Mouthwash, 20 fl oz
  • 75 Triple Floss Picks
  • 2 Stadium Toothbrushes

Everything for your rinse, floss and brush routine, together in one box.

Explore the complete routine

Why are there two toothpastes in the system?

Happy Mint pairs 5% nano-hydroxyapatite with enzymes. Charcoal Icy Mint combines nano-hydroxyapatite, activated charcoal, baking soda and vitamins A, C and E.

Julian’s personal pairing is Happy Mint in the morning and Charcoal Icy Mint at night. Either can be your morning or evening toothpaste.

How often should I brush and floss?

Brush twice a day for two minutes and clean between your teeth at least once a day. Be gentle with both brushing and flossing. Consistency matters more than force.

When should I replace my toothbrush?

About every three months, or sooner if the bristles become worn or frayed. Rinse your brush after use and let it air-dry upright.

How big is a tube, and how long does it last?

Each current TWICE toothpaste tube contains 3.4 oz. How long it lasts depends on how much you use and whether you share it, so choose your pack or subscription interval around your own routine.

Ingredients and care

What is nano-hydroxyapatite?

Hydroxyapatite is a calcium phosphate mineral found in tooth enamel. “Nano” describes its small particle size. You’ll find it in Happy Mint and Charcoal Icy Mint; Happy Mint contains 5%.

Compare the formulas and their ingredients on each product page.

How are whitening toothpaste and strips different?

Whitening toothpaste helps remove surface stains during brushing. Happy Mint uses enzymes in a peroxide-free formula. Our Whitening Strips are a separate hydrogen peroxide treatment with their own application time and directions.

See Whitening Strips and directions

What should I choose for sensitive teeth?

Wintergreen Peppermint contains potassium nitrate for sensitivity relief, alongside fluoride for cavity protection. Follow the package directions.

Whitening treatments can cause sensitivity. If you have ongoing pain or sensitivity, check with your dentist before whitening.

What if I have an ingredient allergy?

Check the full ingredient list on the product page and your package before use. Formulas differ, and a “vegan” or “fluoride-free” label does not tell you whether a product is suitable for your allergy.

If you are unsure about an ingredient, ask a qualified healthcare professional before trying the product.

Are your toothpastes vegan?

Happy Mint, Charcoal Icy Mint and Wintergreen Peppermint are described as vegan in their current product information. Check the specific product page when choosing, since ingredients vary across the collection.

Where can I see the full ingredients?

Open the Ingredients section on the toothpaste, mouthwash or whitening product page, and check your package before use. Compare the specific formula you’re buying, especially if you avoid an ingredient.

Compare toothpastes

Orders and delivery

How does shipping work?

Shipping is calculated at checkout. Retail orders over $50 qualify for free shipping within the continental United States. Dental professional orders are excluded. We currently cannot fulfill international orders.

See shipping details

What is your return policy?

Our refund policy explains which orders qualify and how to request help. Have your order number ready when contacting us.

Read the refund policy

Can I change an order or get help with it?

Contact our team as soon as possible with your order number and what you need. Whether an order can be changed depends on its fulfillment status.

Get order help

Can I subscribe to TWICE?

Subscribe to eligible products and save 15% on every delivery. Choose an available delivery interval on the product page. Prefer to buy once? Select the one-time purchase option.