Ingredient Guide

Phospholipids

Also known as: Lecithin (plant source), Skin barrier lipids, Lecithin

All skin typesEspecially dry and barrier-compromised skin

What It Is

A class of lipids that form the structural backbone of cell membranes. In skincare, plant-derived phospholipids (often from soy or sunflower lecithin) are used as barrier-supportive ingredients.

What It Does

Reinforces the intercellular lipid matrix of the skin barrier, supports moisture retention, and helps other ingredients penetrate the skin more efficiently.

Best For

Barrier repairDry skinSensitive or compromised skinDehydration

Benefits

  • Structurally similar to skin's own lipid matrix — highly biocompatible
  • Supports the skin barrier at a foundational level
  • Acts as a penetration enhancer for other actives
  • Non-irritating and suitable for sensitive skin

When to Be Careful

  • Often overshadowed by ceramides in barrier-repair marketing, but performs similar functions
ItGirlies Ingredient Intelligence
Why This Gets Hype

As the barrier-repair trend matured, formulators began including more complete lipid systems — ceramides, fatty acids, phospholipids, and sphingolipids together. Products like The Ordinary HA 2% + B5 with ceramides include phospholipids to create a more complete skin-identical lipid profile.

What People Often Misunderstand

Often overshadowed by ceramides in barrier-repair narratives. Phospholipids are equally important structural components of the skin's intercellular lipid matrix.

Best Routine Slot

Part of hydrating serums or barrier-supportive moisturizers. After cleansing and before SPF.

Good Match For

All skin types, but most valuable for dry, sensitive, and barrier-disrupted skin.

Proceed Carefully If…

No known concerns.

Signs You May Be Overdoing It

Not applicable.

Commonly Found In

Hydrating serumsBarrier moisturizersEmulsions

Products Containing Phospholipids

Hyaluronic Acid 2% + B5 (with Ceramides)
The Ordinary

FAQs About Phospholipids

What are phospholipids in skincare?
Phospholipids are lipid molecules that structurally resemble the skin's own intercellular lipid matrix. They support barrier integrity, help retain moisture, and can improve how other ingredients penetrate the skin.
Are phospholipids the same as ceramides?
They are related — both are barrier-supportive lipids — but different molecules. Ceramides are one specific subclass. Phospholipids include a broader family of lipids that form cell membranes.
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