Galactomyces Pure Vitamin C Glow Serum
What it's good for
Key actives from our research database. Click any to read the full evidence dossier.
A yeast-based ingredient that brightens skin tone and refines the look of pores. Made famous by SK-II essences.
Good for: Brightening, Hydrating
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 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
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 yeast-based ingredient that brightens skin tone and refines the look of pores. Made famous by SK-II essences.
Snowball JM et al., Integration of Transcriptomics and Spatial Biology Analyses Reveals Galactomyces Ferment Filtrate Promotes Epidermal Interconnectivity, International Journal of Cosmetic Science 2024
Miyamoto K et al., Significant Reversal of Facial Wrinkle, Pigmented Spot and Roughness by Daily Application of Galactomyces Ferment Filtrate-Containing Skin Products for 12 Months—An 11-Year Longitudinal Skin Aging Rejuvenation Study, Journal of Clinical Medicine 2023;12(3):1168 — 86 female volunteers; 12-month daily application reversed wrinkle, spot, and roughness markers that had deteriorated over the prior 11-year interval
Yan X et al., Galactomyces Ferment Filtrate Potentiates an Anti-Inflammaging System in Keratinocytes, Journal of Clinical Medicine 2022;11(21):6338 — GFF activates AHR/NRF2 antioxidant signaling, attenuating inflammaging
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 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
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.
- Contains fragrance: Lavandula Angustifolia (Lavender) Oil, Linalool, LimoneneWorth knowing if you have sensitive or reactive skin.
+−Show all 64 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.
- Galactomyces Ferment Filtrate
- Dipropylene Glycol
- Glycerin
- Ascorbic Acid
- Butylene Glycol
- 1,2-Hexanediol
- Niacinamide
- Tromethamine
- Water
- Trehalose
- C12-14 Pareth-12
- Allantoin
- Hydroxyethylcellulose
- Xanthan Gum
- Ethylhexylglycerin
- Adenosine
- Citrus Aurantium Bergamia (Bergamot) Fruit Oil
- Hydrogenated Lecithin
- Glyceryl Acrylate/Acrylic Acid Copolymer
- Sodium Hyaluronate
- Pvm/Ma Copolymer
- Polyglyceryl-10 Stearate
- Lavandula Angustifolia (Lavender) Oil
- Panthenol
- Sodium Ascorbyl Phosphate
- Phenylethyl Resorcinol
- Propolis Extract
- Aronia Melanocarpa Fruit Extract
- Bambusa Vulgaris Extract
- Aspalathus Linearis Extract
- Saccharide Hydrolysate
- Maltodextrin
- Ficus Carica (Fig) Fruit Extract
- Phoenix Dactylifera (Date) Fruit Extract
- Tuber Magnatum Extract
- Pyridoxine
- Houttuynia Cordata Extract
- Folic Acid
- Biotin
- Opuntia Ficus-Indica Extract
- Opuntia Coccinellifera Fruit Extract
- Caprylic/Capric Triglyceride
- Adansonia Digitata Seed Extract
- Leuconostoc/Radish Root Ferment Filtrate
- Sparassis Crispa Extract
- Calendula Officinalis Flower Extract
- Brassica Oleracea Italica (Broccoli) Extract
- Tocopherol
- Cyanocobalamin
- Vaccinium Myrtillus Fruit Extract
- Vaccinium Macrocarpon (Cranberry) Fruit Extract
- Vaccinium Angustifolium (Blueberry) Fruit Extract
- Rubus Idaeus (Raspberry) Fruit Extract
- Rubus Fruticosus (Blackberry) Fruit Extract
- Ribes Nigrum (Black Currant) Fruit Extract
- Euterpe Oleracea Fruit Extract
- Spirulina Maxima Extract
- Thiamine Hcl
- Linoleic Acid
- Inositol
- Astaxanthin
- Caramel
- Linalool
- Limonene
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.