Sunday Riley C.E.O. 15% Vitamin C Brightening Serum for mature skin
Tetrahexyldecyl Ascorbate Ascorbic Acid
Squalane
Phytosterols
Glycolic Acid
Saccharide IsomerateHigh
- HighNormal Skin Fit
- AverageEffectiveness
- HighSafety
A great choice for mature skin; a few serums fit it even better.
This fit is calculated for the concerns frequently associated with mature skin: fine lines, wrinkles, and loss of firmness. For scores and recommendations based on your full skin profile, including your 12D face scan results and any goals or preferences you have, please use the Lovi app.
Page built Nov 8, 2026How the Fit score works
Lovi Assistant explains
- Offers moderate brightening for your normal skin due to tetrahexyldecyl ascorbate and glycolic acid, which provide mild exfoliation and antioxidant support. Tocopherol further aids in barrier repair, complementing your skin's natural resilience.
- While beneficial for general hydration and brightening, the formula's current concentrations are not specifically targeted to address your wrinkles and fine lines.
- The product is safe for your normal skin, with no identified risks of irritation from harsh or prohibited ingredients.
How to apply
- Use this serum in your PM routine. Start by applying it 3 times a week, and work up to daily use if your skin likes it.
- Apply this serum after your toner and before your moisturizer.
- Gently press 2-3 drops of the serum into your skin and let it absorb for a minute.
- You can apply the serum on dry skin for the best results against fine lines.
- Always do a patch test before your first use and avoid the sensitive eye area.
People Say
★4.6Overall rating based on 4.5k+ reviewsBased on a very large amount of data, users with dull, dry, and sensitive skin frequently praise this serum for its rich, creamy texture that hydrates while delivering a visible "lit-from-within" glow. Many report significant fading of acne scars and hyperpigmentation without the irritation common to other Vitamin C products, though a minority of users found the high price point unjustifiable for the results achieved.
Highlights
Brightens and evens tone Mostly Mentioned
- “leaves complexion glowing”
- “faded my acne scars”
- “skin looks noticeably brighter”
- “got rid of dullness”
Hydrating creamy texture Mostly Mentioned
- “sinks in immediately”
- “non-greasy but moisturizing”
- “feels like a lotion”
- “plumps my skin”
High price point Mostly Mentioned
- “way too expensive”
- “hard to justify the price”
- “luxury splurge only”
- “wallet hurts buying this”
Gentle on sensitive skin Often Mentioned
- “zero irritation”
- “gentle enough for daily use”
- “no tingling sensation”
Pleasant citrus scent Often Mentioned
- “smells like fresh oranges”
- “delicious citrus scent”
- “smells spa-like”
- “uplifting fragrance”
Packaging issues Sometimes Noted
- “pump stopped working”
- “can't get the last bit out”
- “bottle design is wasteful”
- “have to unscrew to use”
Caused breakouts Rarely Noted
- “gave me tiny white bumps”
- “caused cystic acne”
- “clogged my pores”
- “broke me out immediately”
Lack of results Rarely Noted
- “didn't see a difference”
- “dark spots didn't fade”
- “glorified moisturizer”
- “expected more for the money”
Sources: lovi.care, dermstore.com, spacenk.com, sephora.com, ulta.com, cultbeauty.co.uk, and more
Questions and answers
What makes Sunday Riley C.E.O. 15% Vitamin C Brightening Serum a great fit for mature skin?
Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is a great fit for mature skin because it offers moderate brightening through tetrahexyldecyl ascorbate and glycolic acid, which provide mild exfoliation and antioxidant support. Tocopherol further aids in barrier repair, helping to keep your skin smooth and resilient with a very safe profile.
Which ingredients make this serum a good fit for mature skin?
This serum is a good fit for mature skin due to tetrahexyldecyl ascorbate and glycolic acid, which provide mild exfoliation and antioxidant support. Additionally, tocopherol helps with barrier repair to complement your skin's natural resilience.
What does Tetrahexyldecyl Ascorbate do for mature skin?
Tetrahexyldecyl Ascorbate helps mature skin by boosting collagen production and providing strong antioxidant protection against daily damage. When paired with the right stabilizing ingredients, it is unlikely to irritate while improving firmness and overall skin health.
What does Squalane do for mature skin?
Squalane helps keep mature skin feeling soft and smooth by boosting moisture and protecting the skin barrier. It also provides antioxidant support that helps improve the look of fine lines and wrinkles over time.
Journal of Nanobiotechnology, 2025Journal of Nanoscience and Nanotechnology, 2010
Where does this serum go in a skincare routine for mature skin?
This serum goes in the evening routine after cleansing and before moisturizing, following Lovi routines that place treatments in the evening for simplicity and extra safety around sun exposure. You can use it once a week at first and carefully increase frequency if your skin handles it well.
Can I use this serum with retinol, and in what order?
You can use this serum with retinol by applying the serum in your morning routine and retinol at night, or by using them on alternating nights to keep your skin calm. Using vitamin C and retinol together may cause mild dryness or irritation, so starting slowly helps your skin adjust safely.
How often should I use this serum?
Use this serum in your evening routine once a week to start, and if your skin tolerates it well and shows good results, you can carefully use it more often. Antioxidants and gentle acids like these are generally well tolerated and help improve dullness and uneven tone over time.
Can this serum clog pores, cause breakouts or purging for mature skin?
This serum is unlikely to cause breakouts or clog pores for mature skin because it has a safe formula with a low risk of irritation. Reviewers rarely report breakouts from using it.
Is this serum fragrance-free and alcohol-free?
It has no drying alcohol and contains fragrance (limonene and linalool).
What the research says
A topical serum containing vitamin C, vitamin E, and raspberry leaf cell culture extract improved skin color, elasticity, radiance, smoothness, scaliness, and wrinkles compared to the untreated contralateral side in fifty female volunteers.
Journal of Cosmetic Dermatology, 2020A 3-in-1 anti-aging topical night serum-in-oil applied once daily decreased wrinkles by 11%, increased skin firmness by 8%, reduced redness by 70%, and improved overall skin quality and complexion in 103 female subjects over 28 to 84 days compared to baseline.
Journal of Cosmetic Dermatology, 2019Topical application of 5% vitamin C cream significantly improved global clinical scores, increased skin microrelief density, and induced elastic tissue repair in photoaged skin compared to excipient control in healthy female volunteers.
Experimental Dermatology, 2003Ascorbic acid 2-glucoside gel significantly reduced gingival melanin pigmentation after 4 weeks compared to placebo in 73 subjects with symmetric pigmentation.
Journal of Periodontology, 2009Topical application of VC-IP cream twice daily for 8 weeks reduces periorbital wrinkles in female subjects compared to a placebo cream.
Journal of Cosmetic Dermatology, 2022Squalane at 0.005-0.015% counteracts UVA-induced oxidative stress, inflammation, and collagen metabolism inhibition while stimulating fibroblast migration in human dermal fibroblasts.
Molecules, 2025Plant-derived squalane protected human dermal fibroblasts against UVA-induced damage by counteracting ROS formation, suppressing apoptosis-related proteins p53, caspase-3, caspase-9, and PARP, and restoring the pro-survival p-Akt/mTOR pathway.
Antioxidants, 2025Topical application of soybean phytosterols improves skin barrier recovery compared to a vehicle control in human volunteers with tape-stripped skin.
Journal of Cosmetic Science, 2008Topical application of a formulation containing niacinamide and soy phytosterols recovered about 95% of skin barrier integrity eight days after tape stripping in vivo.
Current Drug Delivery, 2016Topical application of phytosterols and ceramides on healthy skin blocked the UV-induced down-regulation of COL1A1 and COL1A2 expression, while all four tested preparations inhibited the UV-induced up-regulation of MMP-1.
Der Hautarzt; Zeitschrift Fur Dermatologie, Venerologie, und Verwandte Gebiete, 2008Repeated short-contact 70% glycolic acid peels provided superior results in atrophic acne scars compared to daily low-strength glycolic acid cream or placebo in 58 women over 24 weeks.
International Journal of Dermatology, 2000Serial glycolic acid peels combined with a modified Kligman formula significantly reduced facial PIH severity in Indian patients compared to the modified Kligman formula alone.
Dermatologic Surgery, 2017A combination cream of stimu-tex AS and saccharide isomerate reduced erythema, increased skin capacitance, and reduced transepidermal water loss compared to placebo in 20 subjects after fractional CO2 laser procedure without causing serious adverse events.
Lasers in Medical Science, 2025A novel moisturizer containing saccharide isomerate accelerates skin barrier recovery, improves hydration, reduces erythema, and alleviates discomfort compared to a control moisturizer following intense pulsed light treatment in subjects with skin aging.
The Journal of Dermatological Treatment, 2025Formulations containing saccharide isomerate significantly improved transepidermal water loss, sebum secretion, and scalp flaking compared to a placebo formulation in an adult Chinese population affected by dandruff scalp.
Journal of Cosmetic Dermatology, 2023
Ingredients
Water, Tetrahexyldecyl Ascorbate, Squalane, Peg-8 Beeswax, Hydrogenated Polydecene, Polyglyceryl-6 Distearate, Ppg-12 Smdi Copolymer, Phenoxyethanol, Acetamidoethoxyethanol, Jojoba Esters, Sodium Acrylate Sodium Acryloyldimethyl Taurate Copolymer, Glycine Soja Sterols, Tocopherol, Glycolic Acid, Caprylyl Glycol, Sodium Phytate, Citrus Aurantium Dulcis Oil, Chlorphenesin, Alba Cera, Glycerin, Isosqualane, C30 Hydrocarbons, Saccharide Isomerate, Limonene, Linalool
Behind this fit score
Lovi calculates every fit score from the full ingredient list with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.
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Co-founder, Medical Director
Cosmetic chemist, cosmetologist, aesthetic products developer
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Co-founder, CEO and CTO
PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex
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Dr. Sofía Perea Pérez, MD, MSc
Medical Board
Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine
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Medical Board
Specialist dermatologist, MBBS, MD, IFAAD
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Medical Board
Cosmetic chemist, SCS, IFSCC member
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Medical Board, Medical Advisor
Dermatology MD
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Elina Nazarenko, MD
Medical Board
Dermatology and diagnostic consultant
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Victoria Derkova, MS
Medical Board
Cosmetic chemist, cosmetic development technologist
How does it fit your skin?
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