Sunday Riley

Good Genes Lactic Acid Treatment dupes

Good Genes Lactic Acid Treatment costs about $85 for 30 ml ($83.79 / fl oz). The closest match below is The Ordinary Lactic Acid 10% + HA at $9, about 89% less per ounce. Each pair is compared on format, finish and key ingredients, including what the dupe doesn't do.

Lactic acid serum that smooths texture and brightens overnight. Can be used as a 3-minute mask on sensitive skin.

Original: $85
Cheapest dupe: $9
You save: 89%

Prices checked 23 September 2026; Amazon's price today may differ.

Buy the $9 dupe See the original

The dupe, side by side

The original

Sunday Riley

Good Genes Lactic Acid Treatment

$85

$83.79 / fl oz

-89%per oz

Cost per fl oz

Sunday Riley$83.79 / fl oz

The Ordinary$8.87 / fl oz

$76 less at checkout than the original.

Size: Original · Sunday Riley30 ml; Dupe · The Ordinary30 ml
Key ingredients: Original · Sunday RileyLactic acid, Licorice, Lemongrass; Dupe · The Ordinary10% lactic acid, Hyaluronic acid, Tasmanian pepperberry

What matches

Same main active (lactic acid) at a disclosed 10%.

What the dupe does worse

It has a thinner texture and no fragrance. It's also offered at 5% if your skin is new to acids.

About the original Buy the dupe

Questions

What is the best dupe for Sunday Riley Good Genes Lactic Acid Treatment?

The Ordinary Lactic Acid 10% + HA at about $9. Same main active (lactic acid) at a disclosed 10%. It has a thinner texture and no fragrance. It's also offered at 5% if your skin is new to acids.

How much do you save?

Good Genes Lactic Acid Treatment costs about $85 for 30 ml, or $83.79 / fl oz. The Ordinary Lactic Acid 10% + HA works out at $8.87 / fl oz, roughly 89% less.

Is a dupe the same as the original?

No. A dupe matches the format, finish or key ingredients closely enough that most people won't see a difference in wear. Packaging, scent, shade range and longevity usually differ, and each comparison on this page says how.

The Ordinary · 89% less

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