Sunday Riley Good Genes vs C.E.O. Serum
Should I choose Sunday Riley Good Genes or C.E.O. 15% Vitamin C Brightening Serum?
Short answer
Choose Good Genes All-In-One Lactic Acid Treatment if your skin looks dull or feels rough and you want a leave-on lactic acid exfoliant with licorice root. Choose C.E.O. 15% Vitamin C Brightening Serum if dark spots and uneven tone are the main concern and you want a vitamin C serum you can use morning or night. Both list scented botanicals, so neither suits fragrance avoidance.
What this means for you
Start with what you notice
Both promise a brighter look, but by different routes. Rough, dull texture points to an exfoliant; spots and uneven tone point to vitamin C.
The ingredient names, translated
Lactic acid is an AHA: it loosens the dull outer layer of dead skin so skin feels smoother. Vitamin C is an antioxidant used for the look of dark spots and dullness. C.E.O. uses tetrahexyldecyl ascorbate, an oil-soluble vitamin C form, at a stated 15%, and also lists a little glycolic acid.
How to decide
- Dull or rough texture? Good Genes All-In-One Lactic Acid Treatment.
- Dark spots or uneven tone? C.E.O. 15% Vitamin C Brightening Serum.
- Using both? Don't start them in the same week, and use sunscreen daily.
What to expect
An AHA can make skin look smoother within days, but overuse causes redness and peeling. Vitamin C works slowly over weeks. AHAs increase sun sensitivity. We haven't tested either product.
General guidance, not a test of these products: FDA: alpha hydroxy acids in cosmetics (sun sensitivity); Topical vitamin C: benefits and formulation limits. Each product's label source is linked on its product page.
| Product | Size | Key ingredients | Skin type (brand) | Fragrance | Worth knowing | Source |
|---|---|---|---|---|---|---|
| 30 ml | Lactic Acid | Brand doesn't say | Marketed fragrance free; scent ingredients flagged | Cymbopogon Schoenanthus (Lemongrass) Oil, Citral, Geraniol, Limonene | Brand's page Checked | |
| 30 ml | Vitamin C (THD Ascorbate) 15% | Brand doesn't say | Scent ingredients flagged | Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Tangerina (Tangerine) Peel Oil, Linalool, Limonene | Brand's page Checked |
Exfoliant vs vitamin C
Sunday Riley Good Genes All-In-One Lactic Acid Treatment is a 30 mL leave-on treatment. Its list leads with water and prickly pear, lady’s slipper, agave, arnica and aloe extracts, then squalane and lactic acid. Licorice root extract and lemongrass oil appear further down.
Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is a 30 mL serum with 15% tetrahexyldecyl ascorbate, an oil-soluble form of vitamin C. It also lists squalane, soybean sterols, tocopherol and glycolic acid. Sunday Riley says to use two pumps morning and/or night.
Skin Realist check: “glow” is doing a lot of work in skincare marketing. Decide whether you’re fixing texture or spots, then buy one bottle, not two.
Label differences worth knowing
Both labels list scented citrus or lemongrass oils and fragrance allergens. Sunday Riley reports a 30-person survey for Good Genes; C.E.O.’s claims aren’t tied to a study on the page. See our vitamin C serum guide and dark spot corrector guide.
Manufacturer sources
- Sunday Riley Good Genes All-In-One Lactic Acid Treatment
- Sunday Riley C.E.O. 15% Vitamin C Brightening Serum
Sources and label-check dates are recorded on the product pages.
Which is best for you?
Sunday Riley Good Genes All-In-One Lactic Acid Treatment
Best if your skin looks dull or feels rough and you want a leave-on AHA.
Also consider it when
- You want licorice root alongside the exfoliant
Worth knowing
- Scent ingredients on the label: Cymbopogon Schoenanthus (Lemongrass) Oil, Citral, Geraniol and 1 more
Sunday Riley C.E.O. 15% Vitamin C Brightening Serum
Best if dark spots or uneven tone are your main concern.
Also consider it when
- You want a stated 15% oil-soluble vitamin C
Worth knowing
- Scent ingredients on the label: Citrus Aurantium Dulcis (Orange) Peel Oil, Citrus Tangerina (Tangerine) Peel Oil, Linalool and 1 more
Common questions
Do they contain essential oils?
Good Genes lists lemongrass oil with limonene, citral and geraniol. C.E.O. lists orange and tangerine peel oils with linalool and limonene.
Does C.E.O. contain an acid too?
Yes. Its ingredient list includes glycolic acid, an AHA, though vitamin C is the featured ingredient.
Can I use them on the same day?
Some people use C.E.O. in the morning and Good Genes at night. Both list an AHA, so cut back if your skin gets red or tight.