OAM

OAM 20% Vitamin C Brightening Serum.

Serums

About this product

A vitamin C serum formulated with 20% L-ascorbic acid designed to brighten skin and provide antioxidant protection.

Full ingredients

Methyl Trimethicone, Tetrahexyldecyl Ascorbate (Vitamin C), Cyclopentasiloxane, Trimethylsiloxysilicate, Ascorbyl Palmitate (Vitamin C), Ascorbic Acid/Orange/Citrus Limon/Citrus Aurantifolia Polypeptides, Ascorbyl Glucoside, L Ascorbic Acid (Vitamin C), Sodium Ascorbyl Phosphate (Vitamin C), Palmitoyl Tripeptide-28, Phyllanthus Emblica Extract, Arctostaphylos Uva-Ursi (Bearberry) Leaf Extract, Mixed (Citrus) Terpenes, Ubiquinone (Coenzyme Q-10), Tocopheryl Acetate (Vitamin E), Superoxide Dismutase, Phospholipids, Alpha-Arbutin, Retinyl Palmitate (Vitamin A), Purified Water, Phenoxyethanol

Guru Score

78%

Yay

Early verdict · Few reviews so far

What they liked

Potent 20% vitamin C concentration
Releases vitamin C gradually throughout the day
Stable formulation that resists breakdown

What they flagged

Expensive for the size

What the gurus are saying

This serum's 20% vitamin C concentration earns praise for hitting the sweet spot between efficacy and safety, with a time-release formula that delivers micro doses throughout the day to prevent the antioxidant from breaking down too quickly. The main thing to know: dermatologists caution that anything above 20% vitamin C risks serious irritation without added benefit, so this concentration is as high as you'd want to go. The sticking point is price, at $62, some reviewers question whether the results justify the cost compared to other options.

Synthesized from 2 expert reviews · most recent take November 2022

Type

SerumsDrops & dropper

Key actives

Vitamin C RetinoidVitamin EPeptides

Formula notes

Fragrance-freeNo drying alcohol

Where to buy

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What the gurus are saying.

Every take we've logged from this product's reviews across YouTube. Click any row to watch the moment they said it.

All takes Yay takes Nay takes Mixed takes Hide sponsored

Dr Alexis Stephens

582k subs

✓Yay

"There is a very potent amount of vitamin C in this serum and it releases micro doses of the vitamin C throughout the day. [...] It is 20 vitamin C brightening serum. If you ever see anything above 20 on a vitamin C serum, my suggestion would be to leave it on the shelf where it is and not use it."

Cassandra Bankson

2.46M subs

✓Mixed

"The question is is it 62 dollars good? I don't know about that. This is probably the most impressive product in the line thus far, this looks good, but at that price point, I'm not sure it's worth it."

What the evidence says.

Independent of what the gurus think, this is what the published research supports about the main active ingredients here.

Retinoids

Retinoids are among the best studied ingredients in dermatology, with solid evidence for acne and for the fine lines and rough texture that come from sun exposure. Dryness and flaking in the first few weeks are common and usually settle.

Source: DermNet

Vitamin C

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

Peptides

Peptides are short protein fragments meant to signal repair. The evidence for them is thinner than for retinoids or vitamin C, and it varies a lot by the specific peptide, so the category is more promising than proven.

Source: NIH, National Library of Medicine

Frequently asked.

What is OAM 20% Vitamin C Brightening Serum?

A vitamin C serum formulated with 20% L-ascorbic acid designed to brighten skin and provide antioxidant protection.

Is OAM 20% Vitamin C Brightening Serum worth it?

Mostly yes. 1 of the 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 78%.

What is OAM 20% Vitamin C Brightening Serum's Guru Score?

OAM 20% Vitamin C Brightening Serum holds a Guru Score of 78%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 expert reviewers we have collected.