A brightening serum with ethylated vitamin C and niacinamide designed to improve skin radiance and reduce dark spots.
Water, Glycerin, Niacinamide, Dimethicone, Acetyl Glycyl Beta-Alanine, 3-0-Ethyl Ascorbic Acid, Pancratium Maritimum Extract, Hydrolyzed Hyaluronic Acid, Tocopherol, Xylitylglucoside, Anhydroxylitol, Xylitol, Sodium Polyacryloyldimethyl Taurate, Phenoxyethanol, Undecane, Xanthan Gum, Tridecane, Calcium Aluminum Borosilicate, Sodium Hydroxide, Tin Oxide, Titanium Dioxide, Helianthus Annuus Seed Oil
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 →Mixed
7 experts · Strong agreementWhat the gurus are saying
This stabilized vitamin C serum earns praise as a straightforward, gentle introduction to vitamin C, with niacinamide doing the real work on brightness and dark spots. Gurus split on whether the ethylated vitamin C actually converts to active form in skin, some find it effective and appreciate the minimal irritation, while others note the niacinamide likely carries the brightening benefit. Those new to vitamin C or with sensitive skin may want to start here; patch test first if your skin is reactive.
What they liked
What they flagged
The concerns the experts tie this product to, in their own words. Paid and founder takes don't count.
“This one has ethylated vitamin C, niacinamide which is a vitamin B3 analog that works great on many different aspects of our skin, the skin barrier, anti-inflammatory, regulates sebum production, reduces dark spots, and also has sunflower seed oil which is great.”
Dr. Daniel Sugai, watch at 8:50
“This one has ethylated vitamin C, niacinamide which is a vitamin B3 analog that works great on many different aspects of our skin, the skin barrier, anti-inflammatory, regulates sebum production, reduces dark spots, and also has sunflower seed oil which is great.”
Dr. Daniel Sugai, watch at 8:50
“It's not fragrance, very minimal irritation.”
Doctorly, watch at 14:25
“This one has ethylated vitamin C, niacinamide which is a vitamin B3 analog that works great on many different aspects of our skin, the skin barrier, anti-inflammatory, regulates sebum production, reduces dark spots, and also has sunflower seed oil which is great.”
Dr. Daniel Sugai, watch at 8:50
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
Sun protection is the best evidenced way to slow visible ageing, and the filters are what does the work. Mineral and chemical filters both protect when a product is applied thickly enough and often enough, which is where most people fall short rather than on the choice of filter.
Source: DermNet
A brightening serum with ethylated vitamin C and niacinamide designed to improve skin radiance and reduce dark spots.
The gurus mostly approve it, but with enough reservations to keep it in the middle at a Guru Score of 71%.
Cetaphil Healthy Radiance Brightening Antioxidant-C Face Serum holds a Guru Score of 71%. That is our read on how warmly the experts talk about it, based on the verdicts of 7 expert reviewers we have collected.
In their reviews, experts say Cetaphil Healthy Radiance Brightening Antioxidant-C Face Serum is good for dark spots and post-acne marks (2 experts), excess oil and shine (1 expert), irritated or reactive skin (1 expert) and skin barrier support (1 expert).
2 experts who reviewed Cetaphil Healthy Radiance Brightening Antioxidant-C Face Serum say it is. Dr. Daniel Sugai put it this way: “This one has ethylated vitamin C, niacinamide which is a vitamin B3 analog that works great on many different aspects of our skin, the skin barrier, anti-inflammatory, regulates sebum production, reduces dark spots, and also has sunflower seed oil which is great.”
Lower-priced products in the same category that the experts still rate highly.
See how they stack up →Other products the same gurus have weighed in on, plus more from this brand and category.
Compare side by side →Stories where our editors dug into this product or its brand.
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