🏆 Best deal right now
EIGHTH DAY doesn't discount individual products. The savings sit entirely in the multi-product collections, where buying the set costs less than the pieces, and the mini collection is the deepest cut on the site at 33%.
Shop the Collection →EIGHTH DAY is a clinical skincare line priced accordingly, with single treatments running into the hundreds. Nothing in the individual product range is marked down, and there's no sitewide sale, but working promo codes turn out to be plentiful.
What does exist is a set of ten pre-built collections and duos priced below the sum of their parts. We checked every one against its own original price: they run from 12% to 33% off, and that's the whole discount structure. The only other saving is 15% off a first order for joining the mailing list.
Active EIGHTH DAY deals
EIGHTH DAY advertises this one openly. The codes below do the same job or better, and nine of the ten we tested worked. Everything else requires buying a collection.
Every EIGHTH DAY set currently discounted
The largest set EIGHTH DAY sells and the biggest dollar saving on the site, $1,135 down to $995. A 12% cut on a $1,000 ritual is small in percentage terms and large in absolute ones.
$460 down to $350, and the second-deepest percentage on the site. A full-size routine rather than a sampler.
$850 to $750 on the lift and tighten set.
Two full-size treatments, one for morning and one for night, $740 down to $640.
The targeted fine lines routine at $490 from $560.
$320 down to $280, and one of two duos the page hadn't been listing.
The cheapest way to try the line at $265 from $290. The shallowest cut on the site at 9%, but also the lowest entry price.
The deepest percentage EIGHTH DAY offers at 33%, $180 down to $120, and the cheapest item in the range. The right place to start if you haven't used the line before.
The Signature Treatment for Fine Lines and Wrinkles: was $560, now $490, a saving of $70.
How to get the best price at EIGHTH DAY
1
Join the mailing list first
15% off a first order is the discount EIGHTH DAY advertises, but several codes below match it without the signup. Use it on the thing you actually want, not on a set.
2
Compare the set against the singles
Every collection is cheaper than its parts, but only by 12% to 33%. Work out whether you'd use all of it before treating that as a saving.
3
Start with the mini collection
At $120 from $180 it's the deepest discount and the cheapest way to find out whether the line suits you.
4
Use a code instead of waiting for a sale
There's no sitewide sale and no outlet. The collections are the permanent discount mechanism, and the codes below sit on top of them.
💡 Two of the ten reduced items are the same Day To Night Duo listed under different handles at the same price. Ten reduced listings is closer to nine distinct products.
About EIGHTH DAY
EIGHTH DAY is a clinical skincare brand founded by a Beverly Hills dermatologist, built around a proprietary regenerative complex and sold as targeted treatments rather than a broad range.
Prices run from $120 for the mini collection to $850 for the full signature set, which puts it firmly in the professional tier and explains why the discounting is structural rather than seasonal.
EIGHTH DAY promo code FAQ
Does EIGHTH DAY have a promo code?›
Yes, and more than the brand lets on. We cart-tested ten codes today and nine worked: DECODE, REALRESULTS15, WELCOME15, TIMELESS and NAMVO each took 15% off, and REGENERATE, CLEANSCIENCE and REALRESULTS10 took 10%. The collection pricing is separate.
Why aren't individual products discounted?›
EIGHTH DAY holds price on singles. The savings are structural: pre-built collections and duos are priced below the sum of their parts, from 12% to 33% off.
What's the biggest EIGHTH DAY discount?›
33% off The Regenerative Mini Collection, $180 down to $120. It's also the cheapest product on the site.
Does EIGHTH DAY have a sale or outlet section?›
There's a final-sale collection, but the active discounts all sit in routines and sets. There's no seasonal sitewide sale.
Is the mini collection worth it over a full-size product?›
As a way in, yes. It's a third off and it's the only sub-$150 entry point in a line where a single treatment can cost $560.
The Bottom Line
EIGHTH DAY looks like a hold-price brand until you test the codes. The collections genuinely cost less than their contents, worth between 12% and 33%, and the mini collection at $120 from $180 is the best of those. But nine separate codes also worked in our cart, at 15% and 10%.
Take the 15% first-order discount on whatever single product you actually want, and treat the sets as a saving only if you'd have bought every piece anyway.
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