page often, or follow Osler Institute (hit the follow button up top) to keep updated on their latest discount codes. If you use our sites or applications on or after February 20th, 2018, you are agreeing to the new. Look for the blue "site-wide" label for site-wide Osler promo codes. Site-wide codes can be applied to any item on Osler Institute's website, and therefore are the most useful codes. Osler promo codes sometimes have exceptions on certain categories or brands. Go to m then select the items you wish to purchase and add them to your shopping cart. Look for the box labeled "Enter promo code" and paste your promo code in that box.