If you're checking out for the first time, a valid promo code can be entered on the second and last page of the checkout process before you complete your order.
Note: Only one coupon code can be used per order. You will not be able to enter a coupon code if your order is already discounted.
If you are currently subscribed, a valid promo code can be entered on your profile! Log in at Gainful.com and visit the "Subscription" tab. Under the order summary for your next order, there will be a place to input your promo code.
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