Send your referral link to friends and family. When they check out using your link, they will receive a discount code for £10 off their first purchase purchase over £54. Once they have checked out, you will receive a £10 discount in your account.
To find your link, sign in to your account and head to the rewards tab. You will find a summary of all your points and a link to refer friends and family to start their HiSmile journey.