SUNDAY RILEY C.E.O. 15% Vitamin C Brightening Serum Lunar New Year Limited Edition

SUNDAY RILEY C.E.O. 15% Vitamin C Brightening Serum Lunar New Year Limited Edition

Efficacy100/100IrritancyHigh

Works for

Evens skin tone
Tetrahexyldecyl ascorbate, Glycolic acid
Works well
What the product description says
“THD Ascorbate is an extremely stable, oil soluble form of Vitamin C. It helps fight the signs of aging including dullness, visible loss of firmness and the appearance of dark spots, lines and wrinkles and surface redness”
Source: Ulta

This product can help reduce hypepigmentation and even out the skin tone because it contains the following effective ingredients: glycolic acid, tetrahexyldecyl ascorbate

Keep in mind that you would need to apply any topical skincare targetted at hypigmentation consistently for a couple of months to get a result. No topical skincare product can help get rid of hyperpigmentation (including post-acne marks and age spots) instantly.

Tetrahexyldecyl ascorbateKey activeEffect: HighBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~7.8–9.6%
Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~0.45–0.65%
Anti-aging
Tetrahexyldecyl ascorbate, Glycolic acid + 1 more
Works well
What the product description says
“THD Ascorbate is an extremely stable, oil soluble form of Vitamin C. It helps fight the signs of aging including dullness, visible loss of firmness and the appearance of dark spots, lines and wrinkles and surface redness”
Source: Ulta

This product can help reduce and prevent fine lines and wrinkles, improve skin elasticity and firmness because it contains glycolic acid, tetrahexyldecyl ascorbate.

Keep in mind that it typically takes at least 6 weeks to notice any results because the changes that are needed to improve fine lines and elasticity happen in the deeper layers of the skin. No topical anti-aging product can “erase” wrinkles or fully reverse signs of aging.

Tetrahexyldecyl ascorbateKey activeEffect: HighBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~7.8–9.6%
Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~0.45–0.65%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.7–1.05%
Exfoliation
Side benefit · Glycolic acid
Works well

This product can help exfoliate the skin. In other words, it helps break down the bonds between dead cells on the surface of the skin and speed up the skin turnover. Skin often appears softer and brighter after exfoliation, but overdoing it can result in disrupted skin barrier. The following ingredient is doing the exfoliating job in this product: glycolic acid.

Glycolic acidKey activeEffect: HighAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid~0.45–0.65%
Anti-oxidation
Side benefit · Tetrahexyldecyl ascorbate, Tocopherol
Works well

This product contains antioxidants (tetrahexyldecyl ascorbate) that can help neutralize free radicals in skin. By doing so, they can lessen the damage the skin gets from the UV light (sun).

Tetrahexyldecyl ascorbateKey activeEffect: HighBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.~7.8–9.6%
TocopherolUnder-dosedPure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.7–1.05%
Moisturizing
Side benefit · Squalane, Glycine soja sterols + 8 more
Works

This product can help improve hydration of the skin with the two types of ingredients.

The first type is called “humectants”:
these ingredients help attract water. When humectants are on the surface of the skin, they “pull in” the moisture from the outside environment, or from within deeper layers of the skin. The following ingredients in this product do the job: glycerin, saccharide isomerate.

This product also contains ingredients called “occlusives”. They help reduce the speed with which our skin loses moisture to the outside environment. These ingredients also help soften the upper layer of the skin, so it feels less tight and nicer to the touch. The following ingredients in this product do the job: squalane, glycine soja sterols.

SqualaneKey active· Emollient, OcclusiveEffect: HighAn oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.~4.3–5.2%
Glycine soja sterolsKey active· EmollientEffect: HighAn emollient that helps soften the skin~1.3–1.6%
Jojoba estersKey active· EmollientEffect: HighAn emollient made of jojoba oil. Helps soften the skin and support its barrier function~0.55–0.85%
Cetyl alcoholKey active· EmollientEffect: MediumA non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together~0.4–0.6%
GlycerinKey active· HumectantEffect: HighOne of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant~0.2–0.4%
Saccharide isomerateKey active· HumectantEffect: HighHelps attract water to the upper layer of the skin~0.1–0.2%
Polyglyceryl-6 distearateEffect: LowHelps oil and water mix together while softening the upper layer of the skin~3.1–3.8%
Peg-8 beeswaxEffect: LowHelps water and oil mix together while softening the upper layer of the skin. Can be an allergen (beeswax)~2.5–3.1%
Caprylyl glycol· Humectant, EmollientEffect: LowHelps preserve products and creates a nice product texture~0.4–0.6%
TocopherolEffect: Low, below effective dosePure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself~0.7–1.05%

Can it cause trouble?

Irritancy
4 strong irritants: Limonene, Citrus aurantium dulcis peel oil + 2 more — patch-test recommended
High risk
We flagged 14 ingredients with irritancy potential. Severity depends on your sensitivity threshold; the table lists the worst offenders first.
IngredientFunctionIrritationEst. amount
LimoneneA common frangrance that can easily irritate skin, especially if exposed to air, light or heatHigh~1.9–2.4%est.
Citrus aurantium dulcis peel oilAn essentil oil from orange peel. Potential allergen and can be irritatingHigh~1.9–2.3%est.
Citrus tangerina peel oilEssential oil that can be irritating. Can lead to photosensitivityHigh~1.6–1.9%est.
Glycolic acidAn alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acidHigh~0.45–0.65%est.
LinaloolA fragrance. Can be irritatingHigh~0.05–0.1%est.
Tetrahexyldecyl ascorbateBeing a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.Medium~7.8–9.6%est.
Polyglyceryl-6 distearateHelps oil and water mix together while softening the upper layer of the skinMedium~3.1–3.8%est.
Peg-8 beeswaxHelps water and oil mix together while softening the upper layer of the skin. Can be an allergen (beeswax)Medium~2.5–3.1%est.
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymerA gelling agent that thickens the product consistency and leaves the skin with a velvety finishMedium~0.55–0.85%est.
Jojoba estersAn emollient made of jojoba oil. Helps soften the skin and support its barrier functionMedium~0.55–0.85%est.
Caprylyl glycolHelps preserve products and creates a nice product textureMedium~0.4–0.6%est.
Polyglyceryl-3 beeswaxHelps water and oil mix together. Could be an allergen (beeswax)Medium~0.3–0.55%est.
ChlorphenesinA preservativeMedium~0.16–0.32%est.
Polysorbate 60Helps oil and water mix togetherMedium~0.15–0.3%est.
Comedogenic
Clean of flagged comedogenic ingredients
None flagged

User reviews

Would you recommend?
No community reviews yet.

Be the first — your take helps the next person decide.

Ingredients

Filter by role to see what each ingredient is doing.

Water~45–55%
Formula
Irritation risk
Low

Plain old water

More about Water
Tetrahexyldecyl ascorbate~7.8–9.6%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Evens skin toneAnti-agingAnti-oxidation

Being a lipid soluble form of vitamin C, it is more stable than ascorbic acid, but still degrades quickly and needs to be stabilized in a formulation with another ingredient. It is claimed to penetrate skin better than pure vitamin C and have the the similar benefits, but solid studies of its effectiveness are lacking. Is likely to require a higher concentration in a product than pure vitamin C to be effective. It might be able to help reduce pore clogging.

More about Tetrahexyldecyl ascorbate
Squalane~4.3–5.2%
Key active
Irritation risk
Low
Works for
Moisturizing

An oil naturally present in skin. Works as an emollient to soften the skin and form a protective layer on its surface without a greasy feeling.

More about Squalane
Polyglyceryl-6 distearate~3.1–3.8%
Irritant · medium
Irritation risk
Medium
Works for
CleansingMoisturizing

Helps oil and water mix together while softening the upper layer of the skin

More about Polyglyceryl-6 distearate
Peg-8 beeswax~2.5–3.1%
Irritant · medium
Irritation risk
Medium
Works for
CleansingMoisturizing

Helps water and oil mix together while softening the upper layer of the skin. Can be an allergen (beeswax)

More about Peg-8 beeswax
Limonene~1.9–2.4%
Irritant · high
Irritation risk
High

A common frangrance that can easily irritate skin, especially if exposed to air, light or heat

More about Limonene
Citrus aurantium dulcis peel oil~1.9–2.3%
Irritant · high
Irritation risk
High

An essentil oil from orange peel. Potential allergen and can be irritating

More about Citrus aurantium dulcis peel oil
Citrus tangerina peel oil~1.6–1.9%
Irritant · high
Irritation risk
High

Essential oil that can be irritating. Can lead to photosensitivity

More about Citrus tangerina peel oil
Glycine soja sterols~1.3–1.6%
Key active
Irritation risk
Low
Works for
Moisturizing

An emollient that helps soften the skin

More about Glycine soja sterols
Ppg-12/smdi copolymer~1.2–1.5%
Formula
Irritation risk
Low

Used to create a nice product finish

More about Ppg-12/smdi copolymer
Sodium phytate~0.8–1.2%
Formula
Irritation risk
Low

Used to stabilize product formulations

More about Sodium phytate
Tocopherol~0.7–1.05%
Under-dosed
Irritation risk
Low
Works for
Anti-oxidationAnti-agingAnti-inflammatoryMoisturizing

Pure form of vitamin E. Can help moisturise and protect the skin from free radicals. Often used to help stabilise other ingredients or the formula itself

More about Tocopherol
Phenoxyethanol~0.65–0.95%
Formula
Irritation risk
Low

A preservative. It helps prevent bacterial growth in cosmetic products

More about Phenoxyethanol
Acetamidoethoxyethanol~0.6–0.9%
Formula
Irritation risk
Low
Works for
Moisturizing

A new synthetic humectant that, according to the first tests, works better than glycerin in attracting moisture to the skin surface. It might be able to keep attracting water to the upper layer of the skin for longer compared with glycerin. Its texture is also nicer. Because of this, products with it are likely to be less sticky and more pleasant on application. It is unlikely to cause irritation and products with it work for sensitive skin. For best hydration results, it should be used at about 5-10% in a formulation. This ingredient is developed by a supplier Nouryon and is sold to skincare brands under the name Elfamoist AC.

More about Acetamidoethoxyethanol
Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer~0.55–0.85%
Irritant · medium
Irritation risk
Medium

A gelling agent that thickens the product consistency and leaves the skin with a velvety finish

More about Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer
Sodium acrylate/sodium acryloyldimethyl taurate copolymer~0.55–0.8%
Formula
Irritation risk
Low

Used to create a thicker product consistency

More about Sodium acrylate/sodium acryloyldimethyl taurate copolymer
Jojoba esters~0.55–0.85%
Key activeIrritant · medium
Irritation risk
Medium
Works for
Moisturizing

An emollient made of jojoba oil. Helps soften the skin and support its barrier function

More about Jojoba esters
Glycolic acid~0.45–0.65%
Key activeIrritant · high
Irritation risk
High
Works for
Anti-agingExfoliationEvens skin toneAnti-blemish

An alpha-hydroxy acid (AHA) that helps to remove the dead skin cells on the surface of the skin reveling a more even, smoother complexation. It is also able to stimulate collagen production with long-term use. Could help to reduce pore congestion. It can be irritating to the skin. Apply sunscreen daily if using products with glycolic acid

More about Glycolic acid
Caprylyl glycol~0.4–0.6%
Irritant · medium
Irritation risk
Medium
Works for
Moisturizing

Helps preserve products and creates a nice product texture

More about Caprylyl glycol
Cetyl alcohol~0.4–0.6%
Key active
Irritation risk
Low
Works for
CleansingMoisturizing

A non-drying alcohol that works to soften the skin and stabilize product formulations helping oil and water mix together

More about Cetyl alcohol
Polyglyceryl-3 beeswax~0.3–0.55%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps water and oil mix together. Could be an allergen (beeswax)

More about Polyglyceryl-3 beeswax
Chlorphenesin~0.16–0.32%
Irritant · medium
Irritation risk
Medium

A preservative

More about Chlorphenesin
Glycerin~0.2–0.4%
Key active
Irritation risk
Low
Works for
Moisturizing

One of the best moisturizing ingredients. Naturally present in skin. It attracts water to the upper layer of the skin working as a humectant

More about Glycerin
Polysorbate 60~0.15–0.3%
Irritant · medium
Irritation risk
Medium
Works for
Cleansing

Helps oil and water mix together

More about Polysorbate 60
Sorbitan isostearate~0.15–0.25%
Formula
Irritation risk
Low
Works for
Cleansing

Helps oil and water mix together

More about Sorbitan isostearate
Saccharide isomerate~0.1–0.2%
Key active
Irritation risk
Low
Works for
Moisturizing

Helps attract water to the upper layer of the skin

More about Saccharide isomerate
Linalool~0.05–0.1%
Irritant · high
Irritation risk
High

A fragrance. Can be irritating

More about Linalool
Ingredient list view

Water, Tetrahexyldecyl ascorbate, Squalane, Polyglyceryl-6 distearate, Peg-8 beeswax, Limonene, Citrus aurantium dulcis peel oil, Citrus tangerina peel oil, Glycine soja sterols, Ppg-12/smdi copolymer, Sodium phytate, Tocopherol, Phenoxyethanol, Acetamidoethoxyethanol, Hydroxyethyl acrylate/sodium acryloyldimethyl taurate copolymer, Sodium acrylate/sodium acryloyldimethyl taurate copolymer, Jojoba esters, Glycolic acid, Caprylyl glycol, Cetyl alcohol, Polyglyceryl-3 beeswax, Chlorphenesin, Glycerin, Polysorbate 60, Sorbitan isostearate, Saccharide isomerate, Linalool

Compare prices

Retailers ranked by price — lowest first.

No pricing data available yet for this product.

Worth comparing, line by line.

Match % combines shared ingredients, the first five ingredients, shared actives and hero ingredients, irritancy (lower counts in the alternative's favour), texture and body area. Only products in the same routine step are compared.

Side-by-side comparison of this product against its closest alternatives
SUNDAY RILEYC.E.O. 15% Vitamin C Brightening Serum Lunar New Year Limited EditionYOUR PRODUCTImage skincareIMAGE MD restoring youth repair serumDermExcelCollagen Serumsjalsjäl Bio-Regeneratif Serum Active Energy Lift
Match—56%54%50%
Price—$112.00$76.70—
Shared key ingredients—5 of 91 of 94 of 9
Key difference—Acetyl Hexapeptide-8Hydroxypinacolone RetinoateAcetyl Tetrapeptide-5
Irritancy High High Medium Medium
Drying alcohol—— Contains drying alcohol —
View product Shop Shop Shop

More alternatives: Peter Thomas Roth Potent-C Vitamin C Power SerumGlytone Age-Defying C+ Advanced Antioxidant Serum

Cheaper alternatives? Browse formulas in the same category.
We compare ingredient profiles across our catalog — pick the closest match for your budget.
Open dupe finder
SUNDAY RILEY C.E.O. 15% Vitamin C Brightening Serum Lunar New Year Limited Edition
SUNDAY RILEYC.E.O. 15% Vitamin C Brightening Serum Lunar New Year Limited Edition

Affiliate links · As an Amazon Associate, WIMJ earns from qualifying purchases.

As an Amazon Associate, WIMJ earns from qualifying purchases.