PhD's Loyalty Scheme.

It's called the PhD Members Club and it gives you a whole host of useful stuff like member-only special offers and exclusive on-going discounts.

You'll start to receive all the benefits of the PhD Members Club and enter the BRONZE tier simply by creating an account on PhD.com and you will automatically receive an additional 5% discount on all orders.

As your annual spend increases you will be rewarded with a greater discount as per the tiers below.