Lactic Acid Exfoliating Treatment · updated 2026-06-15

The best Sunday Riley Good Genes Lactic Acid Treatment dupes

We compiled and scored the affordable, currently-available dupes for Sunday Riley Good Genes Lactic Acid Treatment — ranked by how close they really are, with live prices and direct links.

See the ranked list → How we score

Ranked by consensus

Every Sunday Riley Good Genes Lactic Acid Treatment dupe, scored & ranked

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#1 75/100 The Ordinary Lactic Acid 10% + HA

Dupe of Sunday Riley Good Genes Lactic Acid Treatment

The Ordinary — Lactic Acid 10% + HA

● Good enough

A leave-on lactic acid serum at roughly a tenth of the price with a clear 10% concentration plus hyaluronic acid for hydration, though it's a more bare-bones formula without Good Genes' supporting botanicals and has a thinner, slightly tacky texture.

“Best budget lactic-acid match”

Known dupe widely cited as a Sunday Riley Good Genes Lactic Acid Treatment dupe

$9.20

Check price at Amazon → Save $7689% less than the Sunday Riley Good Genes Lactic Acid Treatment Amazon price · checked 2026-07-30 23:00:01 UTC

#2 70/100 The Inkey List Lactic Acid Serum (10%)

Dupe of Sunday Riley Good Genes Lactic Acid Treatment

The Inkey List — Lactic Acid Serum (10%)

● Good enough

Another straightforward 10% lactic acid treatment positioned for gentle smoothing and hydration at a low price, but it's a single-active serum rather than the more layered Good Genes formulation.

“Cheap, beginner-friendly AHA”

Known dupe widely cited as a Sunday Riley Good Genes Lactic Acid Treatment dupe

$9.20

Check price at Amazon → Save $7689% less than the Sunday Riley Good Genes Lactic Acid Treatment Amazon price · checked 2026-07-30 23:00:01 UTC

#3 68/100 Naturium Lactic Acid Lotion 10%

Dupe of Sunday Riley Good Genes Lactic Acid Treatment

Naturium — Lactic Acid Lotion 10%

● Worth a look

Pairs 10% lactic acid with skin-conditioning ingredients in a creamier lotion base, sharing the lactic-acid positioning while offering a richer texture than Good Genes' fluid serum.

“Lotion-textured lactic option”

Known dupe widely cited as a Sunday Riley Good Genes Lactic Acid Treatment dupe

$17.99

Check price at Amazon → Save $6779% less than the Sunday Riley Good Genes Lactic Acid Treatment Amazon price · checked 2026-07-30 23:00:01 UTC

#4 58/100 Paula's Choice Skin Perfecting 8% AHA Lotion

Dupe of Sunday Riley Good Genes Lactic Acid Treatment

Paula's Choice — Skin Perfecting 8% AHA Lotion

● Worth a look

A well-regarded glycolic-based (not lactic) AHA lotion that shares the leave-on exfoliating-treatment category but uses a different acid and texture, so the exfoliation profile differs.

“Different AHA, proven exfoliant”

Known dupe widely cited as a Sunday Riley Good Genes Lactic Acid Treatment dupe

$37.00

Check price at Amazon → Save $4856% less than the Sunday Riley Good Genes Lactic Acid Treatment Amazon price · checked 2026-07-30 23:00:01 UTC

We have not personally tested these — every score blends independent community and reviewer sources, weighted by independence, with no paid placement. Read the full methodology →

No paid placements — just the trade-offs

Why these rank the way they do

Good Genes is an $85 leave-on lactic acid treatment, so the alternatives here are judged on whether they match that lactic-acid active and its smoothing positioning while costing a fraction of the price.

The Ordinary Lactic Acid 10% + HA

It's the closest active match — a leave-on lactic acid serum with a clearly stated 10% concentration plus hyaluronic acid for hydration, at roughly a tenth of the original's price. It scores highest but stops short of a perfect match because the formula is more bare-bones than Good Genes' supporting botanicals and has a thinner, slightly tacky feel.

The Inkey List Lactic Acid Serum (10%)

Another straightforward 10% lactic acid treatment at a low price, well suited to gentler smoothing, but it's a single-active serum rather than the more layered Good Genes formulation, which keeps it just behind The Ordinary.

Naturium Lactic Acid Lotion 10%

Shares the 10% lactic-acid positioning but in a richer, creamier lotion base with added skin-conditioning ingredients — a good sleeper pick if you prefer more cushion than Good Genes' fluid serum, though that texture shift is why it sits slightly lower.

Paula's Choice Skin Perfecting 8% AHA Lotion

A well-regarded leave-on AHA exfoliant, but it's glycolic-based rather than lactic and comes in a lotion texture, so the acid and exfoliation profile diverge most from the original here — hence the lowest score despite its strong reputation.

Bottom line: The Ordinary is the best budget lactic-acid match if you want Good Genes' core active cheaply; reach for Naturium if you want a richer lotion texture, or Paula's Choice only if you're open to glycolic instead of lactic.

About Sunday Riley Good Genes Lactic Acid Treatment & its dupes

Sunday Riley Good Genes is a leave-on liquid exfoliating treatment built around purified lactic acid (an AHA), paired with supporting ingredients like licorice and lemongrass for a brightening, smoothing positioning. It's marketed to visibly soften the look of fine lines, even tone and add radiance, and is typically used a few times a week at night. The dupes below are framed by their lactic-acid / AHA-exfoliant positioning and price, not by guaranteed results — concentrations, pH, supporting actives and overall formulation differ between brands, so outcomes and skin tolerance can vary. This is informational only and not skincare or medical advice.

How to choose a Sunday Riley Good Genes Lactic Acid Treatment dupe

Start by matching the active you care about: Good Genes leads with lactic acid, so look for products that center lactic acid (or a gentle AHA blend) rather than stronger glycolic or BHA formulas if you want a similar exfoliation profile. Consider concentration and pH — lower percentages are gentler for beginners or sensitive skin, while higher percentages exfoliate more assertively but raise irritation risk. Texture matters too: some alternatives are watery toners, others are lotions or serums, which affects layering. Patch test any acid, introduce it slowly (1–2 nights a week), avoid stacking multiple exfoliants, and pair daytime use with sunscreen since AHAs can increase sun sensitivity. Because formulations vary, treat "similarity" as ingredient/positioning overlap, not a promise of matching performance.

Sunday Riley Good Genes Lactic Acid Treatment dupe FAQ

Will a cheaper lactic acid product give me identical results to Good Genes?

Not necessarily — even when two products share lactic acid, the concentration, pH, supporting ingredients and overall formulation differ, so texture, gentleness and visible outcomes can vary from person to person. Treat these as lower-cost alternatives with overlapping positioning, not guaranteed equivalents.

How is lactic acid different from glycolic acid in these dupes?

Both are AHAs, but lactic acid has a larger molecule and is often described as gentler and more hydrating, while glycolic penetrates more readily and can feel stronger. Some alternatives use glycolic or a blend, which changes the experience versus Good Genes' lactic-acid focus.

How often should an exfoliating acid like this be used?

Many people start with 1–2 nights a week and adjust based on tolerance, but you should follow each product's own directions. Over-exfoliating can compromise the skin barrier, so going slow and not combining multiple acids at once is a common informational guideline.

Do I need sunscreen if I use an AHA treatment?

Daily sunscreen is widely recommended with any AHA because exfoliating acids can increase sensitivity to the sun. This applies to Good Genes and all of the alternatives listed.