20% Vitamin C Hyaluronic Acid Serum + CE Ferulic 1oz
Tracked ingredients
Key actives from our research database. Click any to read the full evidence dossier.
Evidence behind the ingredients
Real citations from our research database — one per tracked active in this product. Click any ingredient name to read its full evidence dossier.
Brightens dull skin and helps fade dark spots. Also defends against everyday UV and pollution damage when worn under sunscreen.
Pullar JM et al., The roles of vitamin C in skin health, Nutrients 2017;9(8):866 — concluded topical efficacy "poorly understood"; supports dietary vitamin C
Lee JH et al., Effects of VitabridC12 on Skin Inflammation, Annals of Dermatology 2017
MFDS Approved Functional Cosmetic Active — Ascorbic Acid and derivatives (whitening). Korean Ministry of Food and Drug Safety, Cosmetic Functional Active Ingredient List — L-ascorbic acid and stabilized derivatives (Magnesium Ascorbyl Phosphate, Ethyl Ascorbic Acid, Sodium Ascorbyl Phosphate) are approved whitening actives in the Korean Functional Cosmetics Codex; authorized concentrations documented in Jeon JS et al., International Journal of Cosmetic Science 2016;38(3):286-93 (PMID:26564311)
Boosts the effectiveness of vitamin C and vitamin E when layered together. The reason a good morning antioxidant serum stays potent through the day.
Kim JH et al., Fractional microneedle radiofrequency with the application of vitamin C, E, and ferulic acid serum for neck skin rejuvenation: a prospective, double-blinded, split-neck, placebo-controlled trial, Journal of Dermatological Treatment 2025;36(1):2504655 — CE+ferulic serum + microneedle RF produced superior clinical and histologic neck rejuvenation vs RF alone
Hahn HJ et al., Pretreatment of Ferulic Acid Protects Human Dermal Fibroblasts against Ultraviolet A Irradiation, Annals of Dermatology 2016;28(6):740-748 — ferulic acid pretreatment protects human dermal fibroblasts from UVA damage via antioxidant + stress-inducible mechanisms
Staniforth V et al., Ferulic acid, a phenolic phytochemical, inhibits UVB-induced matrix metalloproteinases in mouse skin via posttranslational mechanisms, Journal of Nutritional Biochemistry 2012;23(5):443-451 — ferulic acid suppressed UVB-induced MMP-2/-9 expression
Also called "cica," it calms redness, repairs the skin barrier, and speeds up healing. The go-to for irritated or reactive skin.
Hur N et al., A Randomized, Double-Blind, Placebo-Controlled Trial Assessing the Effects of Oral Centella asiatica Extract on Skin Aging-Related Parameters in Middle-Aged Korean Women, Nutrients 2026
Borowicz KK et al., Geroprotective Potential of Centella asiatica: Modulation of Cellular Aging, Nutrients 2026
Su Z et al., The Effectiveness and Safety of a Skin Care Product With Centella asiatica Leaf Extract, Ceramide NP, and Panthenol in Subjects With Sensitive Skin: A Prospective, Observational Study, Journal of Cosmetic Dermatology 2025;24(7):e70324 — Sun Yat-Sen U 4-week study; cream provided rapid relief of facial redness and supported barrier function
Sources: PubMed · KCI · J-Stage · CNKI · Wanfang · SFD · MFDS · Cochrane · SCCS · CIR. Every entry points to a specific document. See methodology for what each outcome label means.
Layering conflicts
Ingredients in this product that can react with common actives. Avoid stacking unless noted.
- Benzoyl Peroxidemedium
Benzoyl peroxide breaks down vitamin C, making both less effective. Use one in the morning and the other at night.
- Retinollow
Vitamin C and retinol work best at different pH levels. Use vitamin C in the morning and retinol at night.
- Niacinamidelow
Sensitive skin may flush.
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