Good Genes All-In-One Lactic Acid Treatment
Reviewed by SerumTruth Editorial · Price and formula checked July 2026
The brand signature acid, a smooth lactic acid treatment aimed at the look of a brighter, smoother surface with less sting than glycolic. The undisclosed level and prestige price are the trade, and the dose reads gentle rather than strong. Pleasant to use daily, and it layers like a serum despite the treatment name.
- No active concentrations are disclosed
- Evidence21 / 30
Strength of the research behind the key actives
- Lactic Acid: moderate evidence
The average of the key actives’ evidence grades.
- Potency21 / 25
Dosed at studied levels, not fairy-dusted
- Lactic Acid: dosed at a studied level
How strongly the actives are dosed, led by the strongest, not how many there are.
- Delivery & stability16 / 20
Delivery tech + packaging that protects fragile actives
- Delivery: standard
- Packaging: airless, opaque
- No fragile actives here, so packaging barely moves the score.
Delivery tech plus packaging, and packaging only counts when actives are fragile.
- Formulation1 / 10
Disclosure, active breadth, and ingredient generation
- 0 of 1 actives disclose a concentration
- 1 key active (breadth credit caps at 3)
- No current-generation or synergy bonus
Disclosure, active breadth, and current-generation or synergistic actives.
- Value11 / 15
What a month of use costs vs. the category
- About $26 per month to use
- $85 for 30 ml, used about once a day (about 0.3 ml each time), so a bottle lasts about 3.3 months
- Frequency is set by Lactic Acid, which is used no more than 7x a week, so a bottle stretches further
What a month of use costs: full marks at $6 a month or less, the floor at $60 a month or more.
Tap any row to see how its score was built.
Ranks #21 of 26 exfoliating acids serums we have scored.
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What’s inside
| Active | Disclosed | Dose |
|---|---|---|
| Lactic Acid | n/a | Studied |
A lactic acid treatment built on food-grade lactic acid with licorice root and stearyl glycyrrhetinate for the appearance of a more even tone, in an opaque white pump bottle. The percentage is not disclosed, and independent ingredient readers place it around the lower end of the leave-on AHA range, so it reads as a gentler daily acid rather than a peel. Lactic acid is stable, so the opaque pump is about dosing more than protection.
How it’s delivered
Air- and light-sensitive actives (vitamin C, copper peptides) lose potency fast in the wrong packaging, so delivery and the bottle are scored, not just what’s on the label.
The actives, explained
What the research says
A 15% lactic acid and ceramide lotion was linked to smoother, less flaky looking, better moisturized skin after 14 days of use.
A 14-day Controlled Study Assessing Qualitative Improvement with 15% Lactic Acid and Ceramides in Skin Moisturization and Desquamation. Journal of Clinical and Aesthetic Dermatology, 2020. PubMed ↗
A study of the active, not this exact product. What matters for the score is whether this serum uses it at a comparable dose.
Higher-scoring alternatives
Same category, better SerumProof score. Worth a look before you buy.
Revision history
- July 11, 2026Price and formula rechecked
- July 10, 2026Review published
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Cosmetic information for general education, not medical advice. The SerumProof score reflects our reading of publicly available research and formulation disclosures. See how scoring works.