No.5 Vitamin Boosting Essential Toner
What it's good for
Key actives from our research database. Click any to read the full evidence dossier.
A "master antioxidant" your body already makes. In skincare it gently lightens overall tone and helps fade pigmentation when used consistently over months.
Good for: Brightening, Antioxidant
Brightens dull skin and helps fade dark spots. Also defends against everyday UV and pollution damage when worn under sunscreen.
Good for: Brightening, Antioxidant
A safer, slower-acting alternative to prescription-strength dark-spot faders. Built for long-term use without irritation.
Good for: Brightening
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.
Good for: Brightening, Barrier repair, Anti-inflammatory
A purified compound from the cica (centella) plant, laser-focused on calming inflammation and speeding up how fast skin recovers.
Good for: Anti-inflammatory, Barrier repair
Sometimes called "topical Botox," it's a peptide that subtly reduces the depth of expression lines around the eyes and forehead when used daily over months. Mild effect, but real.
Good for: Anti-aging
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.
A "master antioxidant" your body already makes. In skincare it gently lightens overall tone and helps fade pigmentation when used consistently over months.
Stanescu C et al., Glutathione in Skin Aging and Tissue Regeneration: A Systematic Review of Molecular Mechanisms, Redox Modulation, and Biomedical Implications, Molecules 2026
Sarkar R et al., Glutathione as a skin-lightening agent and in melasma: a systematic review, International Journal of Dermatology 2025
Wahab S et al., Combination of topical and oral glutathione as a skin-whitening agent: a double-blind randomized controlled clinical trial, International Journal of Dermatology 2021;60(8):1013-1018 — 8-week RCT showed combination significantly lowered melanin and raised lightness vs placebo
Brightens dull skin and helps fade dark spots. Also defends against everyday UV and pollution damage when worn under sunscreen.
Krutmann J et al. PINGing Sunshine: A Review of the Evidence for Adding Non-Filtering Photoprotective Ingredients to Sunscreens. Photodermatol Photoimmunol Photomed. 2025;41(6). — Review of Photoprotective INGredients (PINGs); L-ascorbic acid (vitamin C) identified as a top-ranked PING demonstrating efficacy across multiple photodamage endpoints.
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
A safer, slower-acting alternative to prescription-strength dark-spot faders. Built for long-term use without irritation.
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
Morag M et al., A double-blind, placebo-controlled randomized trial of Serratulae quinquefoliae folium, a new source of β-arbutin, in selected skin hyperpigmentations, Journal of Cosmetic Dermatology 2015 — 76% of melasma patients showed clinical lightening over 8 weeks
Kim H, Choi HR, Kim DS, Park KC, Topical hypopigmenting agents for pigmentary disorders and their mechanisms of action, Annals of Dermatology 2012;24(1):1-6 — review classifies arbutin among hypopigmenting agents via tyrosinase regulation as a hydroquinone alternative
+−3 more ingredients
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
Passeron T et al., An Investigator-Blinded, Randomized Trial of a Broad-Spectrum Sunscreen Containing Sclareolide and Niacinamide, Dermatology and Therapy (Heidelberg) 2026
Vergilio MM et al., Topical Formulation with Niacinamide Combined with 5 MHz Ultrasound for Improving Skin Ageing, Current Medicinal Chemistry 2025
A purified compound from the cica (centella) plant, laser-focused on calming inflammation and speeding up how fast skin recovers.
Liu L et al., Madecassoside Attenuated UVB Irradiation-Induced Skin Ferroptosis by Targeting POR, Phytomedicine 2026
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
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
Sometimes called "topical Botox," it's a peptide that subtly reduces the depth of expression lines around the eyes and forehead when used daily over months. Mild effect, but real.
Zhu M et al., The effect of a serum containing acetyl hexapeptide-8, dipeptide diaminobutyroyl benzylamide diacetate and gluconolactone on skin biomarkers, wrinkles and skin texture: ex vivo and clinical studies, International Journal of Cosmetic Science 2026 — two clinical trials (n=50, n=42) showed 35-69% static wrinkle improvement and significant elastic fiber and collagen biomarker increases at 12 weeks
Zdrada-Nowak J, Surgiel-Gemza A, Szatkowska M, Acetyl Hexapeptide-8 in Cosmeceuticals: A Review of Skin Permeability and Efficacy, International Journal of Molecular Sciences 2025
Henseler H, Investigating the effects of Argireline in a skin serum containing hyaluronic acids on skin surface wrinkles using the Visia Complexion Analysis camera system, GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW 2023;12:Doc09 — topical argireline serum reduced measured surface wrinkles
Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.
Full ingredient list
Everything on the package label, not just the tracked actives above.
+−Show all 35 ingredients
Listed in the order printed on the package. By regulation, ingredients at 1% or higher are listed in descending order by concentration, so the first entry is the largest part of the formula.
- Water
- Dipropylene Glycol
- Glycerin
- Niacinamide
- 1,2-Hexanediol
- Butylene Glycol
- Polyglycerin-3
- Hippophae Rhamnoides Water
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer
- Tromethamine
- Erythritol
- Pentylene Glycol
- 3-O-Ethyl Ascorbic Acid
- Ethylhexylglycerin
- Polyglyceryl-4 Caprate
- Adenosine
- Glutathione
- Hydrogenated Lecithin
- Disodium EDTA
- Madecassoside
- Coptis Japonica Root Extract
- Decyl Glucoside
- Caprylyl Glycol
- Ceramide NP
- Ascorbic Acid
- Bisabolol
- Panthenol
- Tocopherol
- Arbutin
- Acetyl Hexapeptide-8
- Hexapeptide-9
- Nonapeptide-1
- Palmitoyl Pentapeptide-4
- Palmitoyl Tripeptide-1
- Palmitoyl Tetrapeptide-7
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.
Similar comparisons
Not medical advice. GlowPal is educational. Patch-test new products and talk to a qualified healthcare professional before changing your routine, especially if you're pregnant, nursing, or have a diagnosed skin condition. See our terms.