Summary of "Serums vs Moisturizers: Everything you need to know about Vitamin C and Serums!"
Key differences: serum vs. moisturizer (morning routine)
Dr. Daniel Sagai’s recommended morning skincare order:
- Cleanser (light hydration, especially for dry mornings)
- Serum (optional but encouraged; “active” ingredients)
- Moisturizer (thicker; helps seal and support the skin barrier)
- Sunscreen (final step)
Why serums are used
- Serums are concentrated with active ingredients, often including:
- Antioxidants / vitamins (including vitamin C)
- Their job is to fight free radicals caused by:
- Air pollution
- Sunlight
- This helps prevent oxidative stress, which contributes to aging.
How to layer correctly
- Apply products in order from lightest to thickest.
- Suggested layering example:
- Cleansing lotion
- (Optionally) toner
- Serum
- Thicker moisturizer to lock it in
- Sunscreen
Best-in-class ingredient targets (as mentioned)
For moisturizers (barrier support):
- Ceramides
- Hyaluronic acid
- Glycerin
- Prolotam (mentioned as an example ingredient in an “Aquaor” moisturizer)
- General goal: keep the skin barrier intact
Vitamin C: why it matters
Dr. Sagai highlights:
- Skin protection from the inside and out
- Continue dietary vitamin C (fruits/vegetables)
- Topical vitamin C benefits
- Helps deactivate/neutralize free radicals
- Supports collagen production via collagen cross-linking
- He also notes vitamin C deficiency signs (scurvy-related), stating it can show up in skin issues like:
- Corkscrew hairs
- Perifollicular bruising (noted as “perp/perps” in subtitles)
Product examples mentioned
- Serum examples
- Skin Better Science antioxidant serum (noted as having 19 antioxidants and containing coffee antioxidants/flavonoids)
- Sunscreen
- Ulta MD (called his favorite)
- Cleanser example
- Neutrogena hyaluronic-based cleanser
Presenters / Sources
- Dr. Daniel Sagai (board-certified dermatologist, Seattle area)
- Brands/products mentioned:
- Neutrogena
- Skin Better Science
- Ulta MD
- Aquaor (as referenced)
- La Roche-Posay (referenced as “lar rose pose”)
- “Skin better science alto defense serum” (referenced; appears to be within the Skin Better Science examples)
Category
Wellness and Self-Improvement
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