Using a code is very easy, click on “Show coupon code”, copy it and begin shopping on the website.
This is how to apply it:
1. Go to personalabs.com
2. Click on “Choose a test” and select what suits your search.
3. From the different subcategories select one related to your particular test clicking selecting until you find what you want.
4. On the page with the details of your test, select the required information and click on “Add to cart”.
On the new page is the details of your order, under it is a field for the code, type the code into the field and click on “Apply”.