Obagi

Professional C Serum.

Serums

About this product

A vitamin C serum with 15% or 20% L-ascorbic acid and hyaluronic acid, designed to brighten dark spots and hydrate the skin.

Best for

Mature skin

Type

SerumsDrops & dropper

Key actives

Vitamin C

Formula notes

Contains fragranceContains drying alcohol

Full ingredients

Propylene Glycol, Aqua, Ascorbic Acid, Alcohol Denat, Ascorbyl Glucoside, Parfum, Amyl Cinnamal, Benzyl Benzoate, Hexyl Cinnamal, Limonene, Citrus Grandis (Grapefruit) Peel Extract, Octoxynol-9

Guru Score

87%

Approved

Early verdict · Few reviews so far

2Gurus

2Approved

0Mixed

0Skip

What the gurus are saying

This serum's elegant texture and hydrating feel make it stand out when applied, with the vitamin C formulation earning praise for how it works on dark spots and overall skin quality. The 15% strength is the most commonly used, though the 20% option appeals to those wanting a stronger dose. Hyaluronic acid in the formula adds plumping hydration, making it a solid morning choice for anyone looking to tackle discoloration.

Synthesized from 2 expert reviews · most recent take December 2025

Where to buy

Find it at Amazon → Compare prices on Google Shopping →

How it works Independent by design. Every take comes from a creator we have no relationship with. We do not ask anyone to review, and affiliate links never move a score.

Every take, in full

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.

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Dr. Daniel Sugai

718k subs

✓Approved

"I've been impressed by this. A couple years ago, I started using Obagi vitamin C products. And man, so impressed by how hydrating, how elegant it feels when you apply the drops. The formulation is great. Formulation does matter when it comes to these products. The 15% formulation is the one I've used the most. Recently I've gone into the 20%. Love that as hyaluronic acid is very plumping, hydrating to the skin and overall just really great way to start off the morning to battle those dark spots on the face."

Lab Muffin Beauty Science

858k subs

✓Approved

"Obagi's Professional C Serum, containing 15% L ascorbic acid, is another winner."

Top Pick: vitamin c serum

Common questions

Frequently asked.

What is Obagi Professional C Serum?

A vitamin C serum with 15% or 20% L-ascorbic acid and hyaluronic acid, designed to brighten dark spots and hydrate the skin.

Is Obagi Professional C Serum worth it?

Yes. All 2 gurus who reviewed it give it their stamp of approval, for a Guru Score of 87%.

What is Obagi Professional C Serum's Guru Score?

Obagi Professional C Serum holds a Guru Score of 87%. That is our read on how warmly the experts talk about it, based on the verdicts of 2 independent expert reviewers we have collected. At least one expert has named it a Top Pick in its category.