VITAMIN C

Vitamin C skincare for brighter-looking skin, collagen support, and skin longevity. Sunday Riley Vitamin C formulas are powered by Japanese-sourced THD ascorbate, also known as tetrahexyldecyl ascorbate.

Designed for morning and evening use, this collection helps improve the look of dullness, dark spots, hyperpigmentation, uneven skin tone, fine lines, and wrinkles, while supporting collagen and the look of firmer, brighter, more resilient skin.

C.E.O. 15% Vitamin C Brightening Serum

$85.00

C.E.O. Afterglow Brightening Vitamin C Cream pack shot with 2022 POPSUGAR MUST HAVE BADGE that says "24 Hours of Hydration"

before and after pictures of face after using c.e.o afterglow - in 4 weeks, clinically proven improvement in the look of smoothness, radiance - smaller looking pores

before and after pictures of face after using c.e.o. afterglow showing improved lifting + firming - in 4 weeks, clinically proven improvement in the look of cheek lifting, firmness, and elasticity

Infographic with C.E.O. Afterglow Brightening Vitamin C Cream product showing clinically proven results. In 24 hours it provides 24 hours of continuous hydration. In 7 days significantly improves skin brightness and significantly improves skin texture.

Infographic of C.E.O. Afterglow Brightening Vitamin C Cream saying in 7 days, 94% felt that their skin: had a healthy glow, was more elastic, and was visibly. 100% felt their skin was significantly softer & smoother. 97% felt that their skin felt more moisturized

C.E.O. Afterglow jar on top of yellow goop smear

Infographic of C.E.O. Afterglow Brightening Vitamin C Cream on pink background, with orange, grapefruit slices, and aloe vera. Copy says "thd ascorbate-prevents & repairs the visible signs of premature aging" "sodium hyaluronate blend - attracts & binds water for increased skin hydration" "lutein - delivers a boost of antioxidants"

Face model applying C.E.O. Afterglow Brightening Vitamin C Cream to her face

C.E.O. Afterglow jar in front of a orange background with a slice of orange above the jar with dripping juices

A jar of 'C.E.O. Afterglow' brightening thermodynamic cream by Sunday Riley, with a white lid and a pink label.

C.E.O. Afterglow Brightening Vitamin C Gel Cream

$65.00

Sunday Riley C.E.O. Glow face oil bottle with dropper on a white background with badge that says "#1 Face Oil in the U.S.*"

Lay down of C.E.O Glow Face Oil with lay down dropper and yellow oil spill.

Lay down of C.E.O. Glow Face Oil bottle with shadow on a peach background

C.E.O. Glow Face Oil 15ml pack shot with award tag

C.E.O. Glow Face Oil in a orange gradient glass bottle with an orange slice wrapped around the silicon dropper top and orange powder in front of bottle..

C.E.O. Glow Face Oil lay down on turmeric powder

C.E.O. Glow Face Oil in a orange gradient glass bottle with silicon dropper with splashes of oil in the background.

C.E.O. Glow Vitamin C and Turmeric Face Oil

$40.00

CEO Protect and Repair Moisturizer, orange jar with white cap

Light yellow texture image of CEO moisturizer

Pastel orange background, open CEO moisturizer jar, light yellow moisturizer cream

CEO Protect and Repair moisturizer, travel friendly size

Hand model - one hand hold C.E.O. Vitamin C Cream jar and other hand reach to touch the light yellow goop

C.E.O. Vitamin C Cream 15g jars and 50g jars lay over peach background with water drops around the jars

C.E.O. Vitamin C Cream lay over citric slices on light blue background

C.E.O. Vitamin C Rich Hydration Cream

$22.00

C.E.O. Vitamin C Brighten + Tighten Body Butter by Sunday Riley in its 200 mL jar, featuring an orange and white gradient design with bold white lettering.

Key benefits of the C.E.O. Vitamin C Body Butter displayed with a model holding an open jar, emphasizing skin brightening, evening tone, and soothing after-sun properties.

C.E.O. Vitamin C Body Butter showcased on two models’ legs with a silky and velvety texture, emphasizing its quick absorption and luxurious feel.

Ways to use the C.E.O. Vitamin C Body Butter listed alongside a model applying the product on her arm, including after a shower, after sun exposure, before going out, and as an overnight body mask.

Key ingredients of the C.E.O. Vitamin C Body Butter highlighted against a bright background, including THD Ascorbate (Vitamin C), Vitamin B5, B6, B3, a triple-butter blend of shea, murumuru, and cocoa butter, oat lipids, and Vitamin E.

Before and after comparison of a model’s décolleté, showing the visible effects of C.E.O. Vitamin C Body Butter in just one hour, with smoother, brighter skin.

C.E.O. Body Butter

$52.00

Multivitamins kit pack shot with C.E.O Serum and Luna bottles

C.E.O. Serum white goop touching the dark blue oil drop on a white background

C.E.O. Serum and Luna bottles on a dark pink background with shadow

Multivitamins C.E.O. Vitamin C Serum and Luna Kit

$28.00

Wake Up With Me

$95.00

Superstars Vol.1 pack shot with Good Genes, C.E.O. Serum, A+ and Auto Correct bottles

Good Genes, C.E.O. Serum, A+ and Auto Correct goops on a white background

All four products laid out on a pink reflective ribbons: C.E.O Serum, Good Genes Lactic Acid Treatment, A+ High Dose Retinoid Serum, Auto Correct

Animation Superstars pack shot with products bottle moving around the package on a light blue background

Superstars Vol.1 Best Sellers Kit

$130.00

Power of 3 kit pack shot with Good Genes, C.E.O. Serum and A+ bottles

White Good Genes, white C.E.O. Serum and green A+ goops on a white background

Good Genes, C.E.O. Serum and A+ bottles lay over a light pink background with shadow

Good Genes, C.E.O. Serum and A+ bottles lay over a pink background circle with shadow and other small pink circles

Power of 3 kit pack shot with a holiday theme ribbon on a light pink background

Power Of 3

$275.00

Good shot- dark blue z shaped line of Luna in the upper left, white CEO Serum splotch across the bottom, and white Good Genes splotch in upper right on an all right background

Luna, C.E.O. Serum and Good Genes bottles laying over their goops on a pink background

Jewel Box

$36.00

FAQ

What does vitamin C do for your skin?
Vitamin C is one of the most important antioxidants in skincare. Daily sun exposure and pollution generate free radicals that break down collagen over time, which shows up as loss of firmness, fine lines, and uneven tone and dark spots. Vitamin C helps neutralize those free radicals, defending skin against the visible signs of this damage. It also supports skin's natural collagen and helps fade the look of dark spots and uneven tone, so over time skin looks brighter, smoother, and firmer.

What is the best form of vitamin C for skin?
The best form depends on your skin and your routine. L-ascorbic acid is the most studied and most potent, but it is unstable, oxidizes quickly, and requires a low pH that can irritate sensitive skin. THD ascorbate is the more universally tolerated choice: it is stable, gentle, works at a skin-neutral pH, and suits sensitive, dry, and resilient skin alike, which is why Sunday Riley formulates with it.

What is THD ascorbate (tetrahexyldecyl ascorbate)?
THD ascorbate is an oil-soluble derivative of vitamin C. Because it is oil-soluble, it is compatible with the skin's natural lipid barrier and absorbs smoothly, then converts to active vitamin C once in the skin. It also works at a skin-neutral pH, so unlike low-pH L-ascorbic acid serums, it supports the skin barrier rather than disrupting it. This combination is what makes THD ascorbate gentle enough for daily use, even on sensitive skin.

Is THD ascorbate better than L-ascorbic acid?
For most people and most routines, THD ascorbate is the easier form to use well. L-ascorbic acid can deliver fast results for experienced users with resilient skin, but it oxidizes quickly and can irritate. THD ascorbate is more stable, gentler, and compatible with more skin types and more products, including retinol and niacinamide, so a wider range of people can use it consistently and see results.

Where is Sunday Riley's THD ascorbate sourced?
Our THD ascorbate (tetrahexyldecyl ascorbate) is sourced from Japan, chosen for its purity and stability. We selected this form of vitamin C because it is oil-soluble, stable, and gentle on the skin barrier, and we source it to a high quality standard so every batch performs consistently.

Does vitamin C go bad?
Yes, and the form matters. L-ascorbic acid is inherently unstable. On exposure to light, air, and heat it oxidizes in stages, first to an ascorbyl radical, then to dehydroascorbic acid, which can irreversibly break down into 2,3-diketogulonic acid and, further, into reactive dicarbonyl compounds. This cascade is why an aging L-ascorbic acid serum turns yellow-brown and loses potency, and at the skin's surface this same Maillard-type chemistry is what causes temporary staining. THD ascorbate is far more stable in air and light, so it resists this degradation and holds its activity through daily use.

When should you apply vitamin C, morning or night?
Both. We recommend using vitamin C twice a day. In the morning, it works as an antioxidant, helping defend skin against free radicals from sun and pollution. At night, it supports skin's natural collagen and brightening while you sleep. Using it morning and night keeps skin protected by day and working to renew its appearance overnight.

Can you use vitamin C with niacinamide and retinol?
Yes. THD ascorbate is compatible with both niacinamide and retinol. Unlike L-ascorbic acid, it does not require a low pH, so it layers more easily and, with retinol, does not add to photosensitivity. As with any new combination, patch testing first is a good idea.

How long does it take to see results from vitamin C?
Results vary by individual and formula. Many people notice a brighter, more radiant-looking complexion within a few weeks of consistent daily use, with more even-looking tone developing over continued use.

Which Sunday Riley vitamin C product is right for me?
It depends on the texture you like and the step you want it in. C.E.O. Glow Vitamin C + Turmeric Face Oil is a lightweight oil that delivers vitamin C with a radiant finish, ideal if you like a glow and want to layer it into a serum or oil step. C.E.O. 15% Vitamin C Brightening Serum is the most concentrated dose, a fast-absorbing treatment serum for anyone who wants targeted brightening. C.E.O. Afterglow Brightening Vitamin C Gel Cream is a lightweight gel-cream moisturizer that brightens while delivering 24 hours of hydration, perfect for normal, combination, and oily skin. C.E.O. Vitamin C Rich Hydration Cream is the richest option, a nourishing moisturizer for drier skin or cooler months. For full results, pair a serum or oil with one of the creams, morning and night.