A lightweight vitamin C and niacinamide serum designed to brighten skin and support sun protection when used before sunscreen.
Water/Aqua/Eau, Niacinamide, 3-O-Ethyl Ascorbic Acid, Ascorbyl Glucoside, Butylene Glycol, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Glycerin, Xanthan Gum, Squalane, Diheptyl Succinate, Capryloyl Glycerin/Sebacic Acid Copolymer, Citric Acid, Sodium Citrate, Sodium Hydroxide, Carbomer, Polysorbate 20, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7, Camellia Oleifera Leaf Extract, Orchis Mascula Flower Extract, Caprylic/Capric Triglyceride, Cananga Odorata Flower Extract, Cucumis Melo Cantalupensis Fruit Extract, Eugenia Caryophyllus (Clove) Flower Extract, Glycine Soja (Soybean) Oil, Pyrus Malus (Apple) Fruit Extract, Prunus Armeniaca (Apricot) Fruit Extract, Rosa Gallica Flower Extract, Cinnamomum Cassia Bark Extract, Jasminum Officinale (Jasmine) Flower/Leaf Extract, Coffea Arabica (Coffee) Seed Extract, Camellia Sinensis Leaf Extract, Tocopheryl Acetate, Tetrasodium Glutamate Diacetate, Phenoxyethanol, Ethylhexylglycerin, Amyl Cinnamal, Cinnamyl Alcohol, Eugenol
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Guru Score
The Guru Score: every expert's verdict on a product, in one simple number.
Under the score you'll see how many experts weighed in, or "Early verdict" while only a few have. Paid takes count for half in the score.
Guru Certified means at least 6 experts, a score of 85% or more, and almost no Nays.
How we score →Yay
5 experts · Moderate agreementWhat the gurus are saying
This serum earns consistent praise for its lightweight texture and the solid niacinamide concentration, but fragrance is a real concern for those with sensitive skin. The vitamin C forms (ethyl ascorbic acid and ascorbyl glucoside) are gentler ester versions rather than the most potent option, making this a thoughtful choice for sensitive types or anyone new to vitamin C who wants to ease in without irritation. The watery formula applies cleanly and won't feel heavy under sunscreen, though the collagen-boosting benefits from the ascorbyl glucoside are modest compared to more active vitamin C forms.
What they liked
What they flagged
Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.
Independent of what the gurus think, this is what the published research supports about the main active ingredients here.
Topical vitamin C is an antioxidant with reasonable evidence for dullness and uneven tone. It breaks down in light and air, so how a product is formulated and packaged matters as much as the percentage on the front.
Source: DermNet
Niacinamide has evidence behind it for redness, uneven tone and supporting the skin barrier, and it is usually well tolerated even by skin that reacts to most things.
Source: DermNet
Ingredients like these draw water into the surface layers and slow how fast it leaves. The evidence is for comfort, softness and hydration rather than for changing the structure of the skin.
Source: DermNet
A lightweight vitamin C and niacinamide serum designed to brighten skin and support sun protection when used before sunscreen.
Mostly yes. 4 of the 5 gurus who reviewed it give it their stamp of approval, for a Guru Score of 78%.
Summer Fridays CC Me Vitamin C Serum holds a Guru Score of 78%. That is our read on how warmly the experts talk about it, based on the verdicts of 5 expert reviewers we have collected.
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