Commonly Asked Questions

Simply add any 5 products to your cart, and the 2 lowest-priced items will automatically become free. There’s no discount code needed.

You can mix and match across our entire range using the easy-to-use Deal Builder above, or choose 5 of the same product.

No code is needed. The discount applies automatically as soon as you add 5 items to your cart, and you’ll see a “Buy 3 Get 2 Free” label under your free items before checkout.

Yes, of course. Just add 5 of the same product using the quantity selector, and 2 of them will automatically be free. It’s a great way to stock up on your favourites.

For a complete smile routine, we recommend:

  • Teeth Whitening Powder: our best-seller lifts coffee, tea and wine stains while rebuilding enamel and protecting gums.
  • Teeth Whitening Strips: lift deep yellowing over a 14-day course, peroxide-free and sensitivity-free.
  • Hyaluronic Gum Serum: hydrates dry gums overnight for healthier-looking, more comfortable gums.
  • Enamel Care Serum: strengthens enamel and helps stop sensitivity at its source.
  • Fresh Mint Toothpaste: protects enamel, freshens breath and makes brushing a treat.

Together, they whiten, strengthen and care for your whole smile. With Buy 3 Get 2 Free, it’s the perfect time to try the full routine.

Yes. If you’d prefer a smaller bundle, our Buy 2 Get 1 Free offer gives you 1 product free when you add any 3 items to your cart. Shop Buy 2 Get 1 Free

Yes, of course. Gift cards work just like cash, so you can use them on any Buy 3 Get 2 Free order. Simply enter your code in the “Discount code or gift card” box at checkout.

Yes. Orders over $70 get Free Next-Day Delivery, and orders over $50 get Free 2-Day Delivery, applied automatically at checkout. Most Buy 3 Get 2 Free bundles qualify for next-day.

As soon as your order leaves your local fulfilment centre, we’ll send you a dispatch confirmation email with your tracking link, so you can follow its journey at every step.

Who We Are & What We Do

MySweetSmile is trusted by over 2 million customers across the UK, US and EU, and rated Excellent on Trustpilot, 4.5 out of 5 from more than 8,500 reviews. No other teeth whitening brand in the world has more reviews at a higher rating.

Our Teeth Whitening Powder is dentist-approved, carries the Dermatest® 5-Star Seal of Approval, and is the only product ever to win The Independent's IndyBest "Best Teeth Whitening Product" two years running.

Our award-winning range covers whitening and gum care. The Teeth Whitening Powder and Strips lift years of staining and yellowing, and the new Hyaluronic Gum Serum rehydrates and soothes dry, sore gums with nightly use.

IndyBest Award-Winners 2x In A Row

Twice voted Best Teeth Whitening Product by The Independent's IndyBest, in 2023 and 2024. No other whitening product has won it twice.

8,500+ "Excellent" Trustpilot Reviews

Join over 2 million customers who trust MySweetSmile for a brighter, more confident smile. Rated "Excellent" on Trustpilot, 4.5 out of 5 from more than 8,500 reviews.

Clinically Proven & Dentist Approved

Backed by a clinical study, dentist-approved and awarded the Dermatest® 5-Star Seal of Approval, MySweetSmile delivers safe, effective results you can rely on.

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