
Premium listing verified: Official Sunday Riley brand content on the Amazon listing (From Sunday Riley, with merchant video); manufacturer Sunday Riley and part number 1418581 as printed in the product details.
Sunday Riley Good Genes All-In-One Lactic Acid Treatment
The icon: a purified grade lactic acid treatment that made exfoliation the headline step of the routine
Good Genes is the product the brand's reputation stands on: purified grade lactic acid with licorice and a squalane cushion, in a pump that has become the default exfoliating treatment for dull, rough looking skin. If one Sunday Riley bottle has to justify the house, it is this one.
The specification
- Size
- 1 fl oz / 30 ml
- Format
- Pump treatment serum
- Key ingredients
- Lactic Acid, Licorice Root Extract, Lemongrass, Arnica
- Use
- Morning or evening, one to two pumps on clean skin
- Brand Notes
- B Corp Certified, cruelty free, as printed in the brand story
Strengths
- Purified grade lactic acid does the resurfacing work, an alpha hydroxy acid generally chosen for a gentler feel than glycolic at comparable jobs
- Licorice root extract supports the brightening side of the brief, aimed at the appearance of dark spots and uneven tone
- Squalane with prickly pear, agave and aloe cushions the acid, which is why the formula reads as a treatment serum rather than a peel
Limitations
- No lactic acid percentage is printed, so strength has to be judged by how skin responds rather than by a number
- Nightly leave on acid is more exfoliation than some skin wants; the brand also frames it as a short contact mask for a reason
- Lemongrass oil gives the pump a botanical scent that scent avoiders will notice
What owners report
In praise
- The next morning glow is the report that built the product's fame, and it still leads owner commentary
- Makeup is described as sitting smoother after a Good Genes night
- The airless style pump is praised for clean, measured dosing
With reservations
- A tingle on the first applications, especially over freshly washed skin
- The botanical scent splits owners between fresh and medicinal
- Daily use can quietly become over exfoliation in enthusiastic routines
Suits
Dull, uneven looking skin where rough surface texture is the main complaint and a treatment step, not another moisturizer, is what the routine is missing
Skip if
Your skin reacts to leave on acids, or your routine already runs a strong exfoliant most nights; one acid step at a time is the sensible rule










