How to Actually Choose a Vitamin C Serum (Dermatologist Guide)

Vitamin C serums are one of the most recommended skincare products—but also one of the most misunderstood.
Patients ask me all the time:
“Do I really need to spend over $100 on a vitamin C serum at the start?”
The answer is no—but there’s a reason some formulas perform better than others.
In this video, I break down:
• What vitamin C actually does for your skin
• Why L-ascorbic acid is the gold standard
• Why percentage alone doesn’t tell the full story
• The real reason some vitamin C serums irritate or don’t work
• How to choose a beginner-friendly vitamin C serum
• Affordable dermatologist-recommended options that actually perform

The biggest mistake I see in clinic?
People blaming vitamin C—when the real issue is the formulation.
If you’re new to vitamin C or struggling with irritation, this video will help you start the right way.
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Products mentioned:
CeraVe Skin Renewing Vit C Serum

Maelove The Glow Maker

SkinCeuticals C E Ferulic

Vichy 16% Ascorbic Acid Vitamin C Serum

Timeless 20% Vit C Serum

RoC Revive + Glow Daily Serum

Naturium Vit C Complex

Vanicream Vit C Serum

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Disclaimer: This video is not intended to be a substitute for medical advice, diagnosis or treatment with your healthcare professional. This is for medical educational purposes only.
I am not sponsored by any of the companies mentioned in this video. As an Amazon Associate/Influencer, Shop My Shelf, Reward Style Affiliate, DRMTLGY and SkinStore Affiliate Partner I earn from qualifying purchases.

Dr. Daniel Sugai
Board Certified Dermatologist