Paula's Choice C15 Super Booster for sensitive skin
Ascorbic Acid
Ferulic Acid
Vitamin E Tocopherol
Sodium Hyaluronate
BisabololAverage
- HighNormal Skin Fit
- AverageEffectiveness
- HighSafety
Works for sensitive skin; other serums fit it better.
This fit is calculated for the concerns frequently associated with sensitive skin: redness, stinging, and reactions to new products. 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 and smoothing for your normal skin due to ascorbic acid and ferulic acid, which provide antioxidant and collagen-boosting effects.
- Supportive ingredients like bisabolol and panthenol offer hydration and soothing benefits for your redness and irritation, though they are not specialized for your specific concerns.
- The formulation is safe for your sensitive skin, containing no harsh ingredients and including bisabolol for its calming properties.
How to apply
- Use your serum in the PM routine, starting 3 times a week before building up to daily use if your skin is happy.
- Apply the serum after cleansing and toning, but before putting on your moisturizer for the best results.
- Gently press 2-3 drops of the serum into your skin and wait a minute ⏱ for it to soak in.
- Since your skin is sensitive and easily irritated, apply the serum on completely dry skin to help keep it calm.
- Always do a patch test before your first use and avoid getting the serum too close to your eyes .
People Say
★4.2Overall rating based on 300+ reviewsUsers frequently report a noticeable glow and brightening of dull complexions with this booster, appreciating its gentle, non-irritating formula and lightweight texture that also smooths fine lines and improves skin texture. A significant number of users are dissatisfied with the product's rapid oxidation, leading to a short shelf life, and find the small bottle size to be expensive.
Highlights
Brightens skin Mostly Mentioned
- “visible glow”
- “skin looks radiant”
- “fades dark spots”
- “brightens dull complexion”
Lightweight texture Often Mentioned
- “absorbs instantly”
- “watery consistency”
- “not sticky”
- “layers well”
Non-irritating Often Mentioned
- “no stinging”
- “great for sensitive skin”
- “doesn't cause redness”
- “gentle formula”
Oxidizes quickly Often Mentioned
- “turned orange in weeks”
- “goes bad fast”
- “shelf life is short”
- “brown upon arrival”
Improves texture Sometimes Noted
- “smoother skin”
- “pores look smaller”
- “skin feels softer”
- “evened out tone”
Packaging issues Sometimes Noted
- “dropper leaks”
- “hard to get last drops”
- “bottle design could be better”
- “messy application”
Price Sometimes Noted
- “expensive for size”
- “pricey”
- “small bottle”
- “costly repurchase”
Unpleasant smell Sometimes Noted
- “smells like hot dog water”
- “metallic scent”
- “ferulic acid smell”
- “strong odor”
Sources: lovi.care, paulaschoice.com, amazon.com, sephora.com, myskincareregime.com, byrdie.com, and more
Questions and answers
How well does Paula's Choice C15 Super Booster work for sensitive skin?
Paula's Choice C15 Super Booster works reasonably well for sensitive skin, offering moderate brightening and smoothing along with calming ingredients like bisabolol and panthenol. However, a treatment for this skin needs to excel at soothing redness and irritation with ingredients like niacinamide and snail secretion filtrate.
Journal of Cosmetic Dermatology, 2025Journal of Cosmetic Dermatology, 2020
Which ingredients make this serum a good fit for sensitive skin?
Bisabolol and panthenol help calm redness and irritation on sensitive skin. A treatment of this type needs ingredients like niacinamide and snail secretion filtrate to be the best fit for this skin.
Journal of Cosmetic Dermatology, 2025The Journal of Dermatological Treatment, 2017
What does Vitamin C do for sensitive skin?
Vitamin C helps brighten skin, smooth out fine lines, and fade dark spots. Clinical studies show it is generally safe and well-tolerated when improving overall skin quality.
What does Ferulic Acid do for sensitive skin?
Ferulic acid helps calm sensitive skin by defending against everyday environmental damage like sun and pollution, while supporting the skin barrier to keep it strong. It is unlikely to irritate when formulated well, and products for sensitive skin benefit from soothing antioxidants and gentle barrier-repairing ingredients.
Journal of the American Academy of Dermatology, 2008Journal of Cosmetic Dermatology, 2008
Where does it go in a skincare routine for sensitive skin?
Apply this treatment in the evening as part of your routine for sensitive skin. This product works for your skin, though sensitive skin needs treatments focused primarily on calming redness and irritation with specialized soothing ingredients.
Can I use this serum with retinol, and in what order?
You can use this serum with retinol by applying them on alternating nights or using retinol at night and this serum in the morning to prevent irritation. This product is safe for sensitive skin because it contains soothing ingredients like bisabolol, though products for this skin type work best when they focus heavily on calming and barrier-repairing ingredients.
How often should I use it?
This treatment works well in the evening routine once a week to start, and people who tolerate it well and see good results may carefully use it more often. This product of this type needs extra soothing and hydrating ingredients to comfortably fit sensitive skin.
Journal of Cosmetic Dermatology, 2025Journal of Cosmetic Dermatology, 2020
Can this serum clog pores, cause breakouts or purging for sensitive skin?
This serum is unlikely to clog pores or cause breakouts for sensitive skin because it avoids heavy, pore-clogging ingredients. However, to keep sensitive skin calm and clear, a product of this type needs lightweight hydration and soothing ingredients like panthenol and bisabolol.
Journal of Cosmetic Dermatology, 2025The Journal of Dermatological Treatment, 2017
Is it fragrance-free and alcohol-free?
Yes, it has no fragrance and no drying alcohol.
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 panthenol-enriched mask significantly decreased erythema and hyperpigmentation, increased sebum and stratum corneum moisture, and reduced transepidermal water loss compared to a saline dressing in 60 subjects undergoing facial laser treatment.
Journal of Cosmetic Dermatology, 2025A new topical panthenol-containing emollient significantly improved transepidermal water loss reduction, stratum corneum hydration, and intercellular lipid lamellae length compared with control in healthy subjects without negatively impacting bacterial viability.
The Journal of Dermatological Treatment, 2017Topical dexpanthenol acts as a moisturizer, improves stratum corneum hydration, accelerates wound healing and epidermal regeneration, reduces erythema, and improves symptoms of skin irritation compared to vehicle or no pretreatment.
American Journal of Clinical Dermatology, 2002Topical 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, 2022Treatment with 14% ferulic acid and 12% l-ascorbic acid significantly reduced pigmentation and erythema while improving hydration and elasticity in 20 women with photoaged skin, with neither acid proving definitively more effective overall though ascorbic acid showed slightly greater skin lightening.
Dermatologic Therapy, 2022Combining fractional microneedle radiofrequency with a topical antioxidant serum significantly reduced wrinkle severity by 29.9% versus 18.0%, increased elasticity by 12.9% versus 2.3%, and improved aesthetic outcomes in 31 participants compared to radiofrequency and placebo.
The Journal of Dermatological Treatment, 2025Pretreatment with a topical antioxidant mixture of vitamin C, ferulic acid, and phloretin attenuated ultraviolet-induced sunburn cell formation, thymine dimer formation, matrix metalloproteinase-9 expression, p53 protein expression, and the suppression of CD1a-expressing Langerhans cells in human skin compared to vehicle control.
Journal of Cosmetic Dermatology, 2008Topical application of an antioxidant serum containing 15% ascorbic acid, 0.5% ferulic acid, and 1% tocopherol prevented particulate matter-induced degradation of extracellular matrix components, inflammation, and oxidative stress in the skin of 15 female volunteers compared to untreated controls.
Journal of Cosmetic Dermatology, 2025Dermatological products containing d-alpha tocopheryl acetate showed non-comedogenic potential with less than a 50% increase in microcomedones in 12 healthy male subjects compared to octyl palmitate.
Contemporary Clinical Trials Communications, 2021Topical application of an antioxidant mix containing 15% ascorbic acid, 0.5% ferulic acid, and 1% tocopherol prevented PM and UV-induced skin barrier perturbation, lipid peroxidation, inflammatory markers, MMP9 activation, and Type I collagen loss in 15 healthy females compared to untreated exposed skin.
Journal of Cosmetic Dermatology, 2024Topical application of 0.1% hyaluronic acid formulations of different molecular weights led to significant improvements in skin hydration and elasticity, with low-molecular-weight formulations also significantly reducing wrinkle depth in seventy-six female subjects compared to a vehicle control.
Journal of Drugs in Dermatology, 2011Topical application of hyaluronic acid in conjunction with free gingival graft significantly reduced donor site postoperative pain until day 7 compared to normal saline, with no significant differences in graft dimensions or patient satisfaction.
Clinical Oral Investigations, 2022Treatment with a hyaluronic acid-containing mouth rinse or topical gel led to significant lesion reduction, pain relief, and normalization of lesion color in adult patients with minor recurrent aphthous stomatitis, with the gel formulation showing an earlier healing onset at 3 days.
BMC Oral Health, 2019Application of an alpha-bisabolol-containing cream produced a significant skin-lightening effect in pigmented skin compared to a vehicle control in the majority of female subjects after 8 weeks.
International Journal of Cosmetic Science, 2010The combination of allantoin, bisabolol, D-panthenol and dipotassium glycyrrhizinate reduces UVB-induced PGE2, inflammatory cytokines, and mitochondrial superoxide in human epidermal keratinocytes.
International Journal of Cosmetic Science, 2024
Ingredients
Water, Ascorbic Acid, Butylene Glycol, Ethoxydiglycol, Glycerin, Ppg-26-Buteth-26, Peg-40 Hydrogenated Castor Oil, Pentylene Glycol, Tocopherol Vitamin E, Sodium Hyaluronate, Hexanoyl Dipeptide-3 Norleucine Acetate, Lecithin, Ferulic Acid, Panthenol, Bisabolol, Rice Bran Extract, Propyl Gallate, Sodium Gluconate, Sodium Hydroxide, Phenoxyethanol, Ethylhexylglycerin
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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