Cell Fusion C Toning C Dark Spot Serum

What is this product?

A brightening and dark spot serum built around niacinamide in third position and 3-O-ethyl ascorbic acid in fifth, backed by ferulic acid, ascorbic acid and fullerene later in the list. Good choice if you want a vitamin C and niacinamide formula at a light texture, but note it contains citrus and rose oils plus limonene and geraniol, so very reactive skin should patch test. The three-day dark spot improvement claim has no disclosed test data behind it.

What makes it different?

The core structure pairs niacinamide (third) with a stable vitamin C derivative, 3-O-ethyl ascorbic acid (fifth), and adds ferulic acid, plain ascorbic acid and fullerene in the later half of the list. A Sphingomonas ferment extract and beta-glucan add soothing and barrier support alongside the brightening actives. All active concentrations are undisclosed, and citrus and rose oils plus listed fragrance allergens (limonene, geraniol) are the main caution points for sensitive skin.

What is in it?

The full ingredient list as the brand publishes it, in the printed order. Each name links to what we know about that ingredient.

This brand publishes its ingredient list in Korean only. Names below are the matching INCI names from the Korean Cosmetic Association ingredient dictionary.

Key ingredientWorth a closer look

• Water
• Propanediol
• Niacinamide
• 1,2-Hexanediol
• 3-O-Ethyl Ascorbic Acid
• Sphingomonas Ferment Extract
• Melissa Officinalis Leaf Extract
• Citrus Aurantium Dulcis (Orange) Peel Oil
• Hydrogenated Lecithin
• Cymbopogon Martini Oil
• Rosa Damascena Flower Oil
• Octyldodeceth-16
• Allantoin
• Glycerin
• Polyacrylate Crosspolymer-6
• Tocopherol
• Polyglyceryl-10 Laurate
• Ferulic Acid
• Beta-Glucan
• Disodium EDTA
• Butylene Glycol
• Adenosine
• Citric Acid
• Rosmarinic Acid
• Polyglyceryl-3 Methylglucose Distearate
• Fullerenes
• Ascorbic Acid
• Caprylic/Capric Triglyceride
• Ethylhexylglycerin
• Limonene
• Geraniol

Ingredients with no mark are ones we found nothing notable about, and when marks overlap on one ingredient we show the caution first.

We could not place these in the list above: 오렌지껍질오일, 팔마로사오일, 다마스크장미꽃오일

Did the ad claims hold up?

We checked 7 lines this product advertises against the ingredient list and public documents. One of them holds up. The rest are only partly right or have nothing behind them.

Claims translated from Korean, originals preserved.

Each line is quoted as the brand published it, and each one was read on its own against the ingredient list and the documents the brand publishes.

How we read these lines