Shop Goodal Green Tangerine Vitamin C Dark Spot Serum (Original) 1.01 fl oz
Serum
Goodal

Green Tangerine Vitamin C Dark Spot Serum (Original) 1.01 fl oz

~$22· 1.01 fl oz
Dark spotsRednessRadianceUneven texture

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.

Ascorbyl GlucosideModerate evidence5 citations

A gentler, more stable form of vitamin C. Same brightening benefits with less chance of stinging.

Takada A et al., Treatment with Ascorbyl Glucoside-Arginine Complex Ameliorates Solar Lentigos, International Journal of Molecular Sciences 2024 — significantly reduced solar lentigo hyperpigmentation without adverse effects

2024Positive — efficacyPMID:39769217View source ↗

Jacques C et al., Ascorbic acid 2-glucoside: An ascorbic acid pro-drug with longer-term antioxidant efficacy in skin, International Journal of Cosmetic Science 2021 — comparable antioxidant protection to higher-dose ascorbic acid with better stability

2021Mechanism onlyPMID:34679221View source ↗

MFDS Approved Functional Cosmetic Active — Ascorbyl Glucoside (whitening). Korean Ministry of Food and Drug Safety, Cosmetic Functional Active Ingredient List; authorized concentration documented in Jeon JS et al., International Journal of Cosmetic Science 2016;38(3):286-93 (PMID:26564311) per the Korean Functional Cosmetics Codex

2016Regulatory approvalMFDS:AscorbylGlucoside-WhiteningView source ↗
Alpha ArbutinModerate evidence9 citations

A safer, slower-acting alternative to prescription-strength dark-spot faders. Built for long-term use without irritation.

Marziya M et al., Mechanism of Cyanotis arachnoidea Gel in improving melasma based on network pharmacology and transcriptomics, Zhongguo Zhong Yao Za Zhi (China Journal of Chinese Materia Medica) 2025;50(13):3775-3790 — Southwest Minzu University Chengdu; arbutin gel as positive-control comparator in melasma rat model

2025Mechanism onlyPMID:40904158View source ↗

Sarkar R et al., Efficacy and Safety of a Topical Formulation Containing Trihydroxybenzoic Acid Glucoside and alpha-Arbutin in Indian Females With Facial Melasma, Journal of Cosmetic Dermatology 2025;24(2):e16753 — 120 Indian women: 10% THBG + 2% alpha-arbutin reduced melanin 16.3% and mMASI 18.4% with good tolerability

2025Positive — efficacyPMID:39943675View source ↗

Ma ZY, Lu Y, Melanin synthesis and regulation in vivo and commonly used melanin inhibitors from natural products and traditional Chinese medicine, Zhongguo Zhong Yao Za Zhi (China Journal of Chinese Materia Medica) 2020;45(24):5898-5916 — Beijing University of Chinese Medicine review classifies arbutin among tyrosinase-active-site-targeting melanin inhibitors

2020Mechanism onlyPMID:33496130View source ↗
NiacinamideStrong evidence11 citations

A multitasker that calms redness, evens out skin tone, and helps oily skin balance out. One of the safest do-a-little-of-everything ingredients.

Moro F et al., Skin Cancer Prevention and Antiaging: Role of Nicotinamide, International Journal of Molecular Sciences 2026

2026Mechanism onlyPMID:42278444View source ↗

Passeron T et al., An Investigator-Blinded, Randomized Trial of a Broad-Spectrum Sunscreen Containing Sclareolide and Niacinamide, Dermatology and Therapy (Heidelberg) 2026

2026Positive — efficacyPMID:41240206View source ↗

Vergilio MM et al., Topical Formulation with Niacinamide Combined with 5 MHz Ultrasound for Improving Skin Ageing, Current Medicinal Chemistry 2025

2025Positive — efficacyPMID:39171587View source ↗
+3 more ingredients
Centella AsiaticaModerate evidence9 citations

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

2026Positive — efficacyPMID:42196964View source ↗

Borowicz KK et al., Geroprotective Potential of Centella asiatica: Modulation of Cellular Aging, Nutrients 2026

2026Mechanism onlyPMID:42280293View source ↗

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

2025Positive — efficacyPMID:40682399View source ↗
MadecassosideModerate evidence6 citations

A purified compound from the cica (centella) plant, laser-focused on calming inflammation and speeding up how fast skin heals.

Liu L et al., Madecassoside Attenuated UVB Irradiation-Induced Skin Ferroptosis by Targeting POR, Phytomedicine 2026

2026Mechanism onlyPMID:41421280View source ↗

Bandopadhyay S et al., Therapeutic properties and pharmacological activities of asiaticoside and madecassoside: A review, Journal of Cellular and Molecular Medicine 2023;27(5):593-608 — comprehensive review of wound-healing, anti-inflammatory and regenerative activity

2023Meta-analysis — positivePMID:36756687View source ↗

Park KS, Pharmacological Effects of Centella asiatica on Skin Diseases: Evidence and Possible Mechanisms, Evidence-Based Complementary and Alternative Medicine 2021;2021:5462633 — KR-authored review of triterpenes including madecassoside

2021Meta-analysis — positivePMID:34845411View source ↗
EGCG (Green Tea)Strong evidence7 citations

A polyphenol from green tea that calms UV-triggered redness and reinforces your sunscreen as a second line of antioxidant defense.

Detudom P, Kamanamool N, Paichitrojjana A, Udompataikul P, Udompataikul M, Efficacy of anti-sebum moisturizing cream containing 2% l-carnitine and 5% epigallocatechin gallate in seborrhea, Journal of Cosmetic Dermatology 2023;22(11):3058-3064 — Thai RCT showed EGCG-containing cream significantly reduced sebum and improved hydration in seborrhea

2023Positive — efficacyPMID:37194909View source ↗

Ud-Din S et al., A Double-Blind, Randomized Trial Shows the Role of Zonal Priming and Direct Topical Application of Epigallocatechin-3-Gallate in the Modulation of Cutaneous Scarring in Human Skin, Journal of Investigative Dermatology 2019;139(8):1680-1690 — topical EGCG reduced scar thickness weeks 1-3 and increased elasticity at week 4 vs placebo

2019Positive — efficacyPMID:30822414View source ↗

Shin S et al., Epigallocatechin Gallate-Mediated Alteration of the MicroRNA Expression Profile in DHT-Treated Human Dermal Papilla Cells, Annals of Dermatology 2016;28(3):327-34 — EGCG altered miRNA expression to protect dermal papilla cells from DHT-induced death, oxidative stress, and senescence (hair-loss mechanism)

2016Mechanism onlyPMID:27274631View source ↗

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.

Similar comparisons

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