The 20% off coupon code at the top of this page is the lead offer from burst, and it takes 20% off any purchase when you add the code at checkout. Use that code if you want a simple percentage reduction on a mixed cart or non sale items; it suits you when you plan to buy standard priced oral care products and accessories.
Small orders under $50. If your cart totals $30, the 20% off promo takes $6 off, leaving you with $24. For a $30 cart the 10% coupon saves $3, so the 20% coupon is better for small buys. Note that the free shipping thresholds start at $50, so you will pay shipping unless you reach one of the free shipping levels.
Orders that meet free shipping. If your cart is $55 before discounts, applying the 20% promo reduces the total to $44, and you would lose the $50 free shipping threshold because the shipping rule does not state whether the threshold is measured before or after discounts. If you want to be sure of free shipping, keep your pre discount subtotal at $50 or $75. The site also shows free shipping for orders over $50 and for orders $75 and up; pick the order value that keeps your pre discount subtotal at or above those thresholds.
Big carts or single expensive items. On a $200 order, the 20% promo takes $40 off, leaving $160. If every item in your cart is a sale product marked down by 40%, that sale price would leave you with $120, saving $80 compared with the original price. If most of what you buy is full price, the 20% promo stays the better public code; if most of it is on sale at 40% off, the sale will save more.
Bundles, subscription and specific deals. Bundles can be up to 30% off; if you are buying a qualifying bundle, compare 30% off the bundle price with the 20% promo on full price. Subscriptions show $20 off for subscribers; if your first order is a subscription and the $20 off exceeds what 20% would give on that purchase, choose the subscription deal. Several deal items are fixed price (for example, floss for $5.99 and the Big Floss Dispenser for $59.99). For those single item deals the marked price is often cheaper than using a percentage code on a full price item.
Our records show the biggest percentage code we listed in the 12 months to October 2026 was 20% off, and we recorded 2 percentage codes in that window. The biggest sale in the same period was up to 40% off. Our team ran 2 checkout tests across 2 offers in the 12 months to October 2026 and kept screenshots as proof.
When deciding, run the math for your exact cart: compare the 20% coupon at the top of this page with the 10% coupon and any sale or bundle price that applies to the exact items you have selected. Take whichever leaves the lower total. Note some sale items state they are not valid with any other offers, so if a sale line says it cannot be combined, do not try to stack the promo code with that sale.