Eighth Day is running a 15% off code on its nourishing Ultra-rich Intensive Mini, which is a straightforward choice for anyone buying that product. More broadly, Eighth Day has a 15% off code that applies to most of your order, though you'll want to compare it against the sales running on specific product ranges to find your best saving.
Buying the Ultra-rich Intensive Mini: Use the featured 15% off code at the top of this page. It's tailored to this product and cannot be combined with other offers.
First order with Eighth Day: You have two options. The first is a 10% off code for first time customers, valid through the end of 2026. The second is a 15% off sale on selected products for first orders. Compare both: on a $100 basket of eligible items, the 15% sale saves you $15 against the code's $10 saving, so check which products qualify under the sale before you buy. If your chosen items are not on sale, use the 10% off code instead.
General shopping: The 15% off code applies to most products and works across your whole order. At the same time, Eighth Day is running sales on selected ranges: up to 33% off selected products across the site, up to 25% off routines and sets, and 10% off the Reparative Moisturizer Deluxe Set specifically. On a $100 order of items that qualify for the 33% sale (at the maximum discount), that sale would save you $33 compared to the code's $15 saving. However, "up to 33%" applies at different rates to different products, so your actual saving will depend on what you buy. Check the sale prices on your items: if the sale gives you more than 15% off, take it; otherwise, use the 15% off code.
Buying routines or sets: The up to 25% off routines and sets sale may save you more than the 15% off code, depending on the discount applied to your chosen set. Compare the sale price with 15% off the full price, and use whichever is lower.
Subscription orders: Eighth Day offers 15% off subscription orders when you sign up. This matches the general 15% off code, so choose whichever is simpler for your situation.
Every order: Eighth Day also includes a free sample with every purchase, giving you a chance to try something new at no extra cost.
In the 12 months to October 2026, Eighth Day has offered only one percentage code, the 15% off running now, while its best sale reached up to 35% off in February 2026. Our team tested one code at checkout in that time and confirmed it worked as described.
To decide between the code and any active sale: work out what 15% off your intended spend would cost, then compare it to the sale price of the same items. Take whichever gives you the lower total. The code cannot be combined with sales, so you must choose one or the other for each purchase.