Sodium PCA
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INCI Name:
Sodium PCA
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Molecular Formula:
C₅H₆NNaO₃
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CAS Number:
28874-51-3
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Alternate Names:
- Sodium Pyrrolidone Carboxylate
- Sodium Pyrrolidone Carboxylic Acid
- Sodium L-PCA
- NMF Moisturizer
- Sodium Pyroglutamate
Key Benefits:
- Exceptional moisture-binding humectant
- Helps maintain skin hydration levels
- Supports the skin's natural moisture barrier
- Improves skin softness and smoothness
- Reduces dryness and dehydration
- Enhances hair moisture retention and manageability
Benefits & Uses (Short):
- Naturally found in the skin's Natural Moisturizing Factor (NMF)
- Provides long-lasting hydration for skin and hair
- Used in serums, creams, lotions, toners, and shampoos
- Helps improve skin comfort and elasticity
- Ideal for dry, sensitive, and dehydrated skin formulations
Recommended Usage Level:
- Serums: 0.2% – 5%
- Creams & Lotions: 0.5% – 5%
- Toners: 0.2% – 3%
- Shampoos & Conditioners: 0.5% – 3%
- Hair Sprays & Leave-ins: 0.2% – 2%
How It Works (Short):
- Functions as a high-performance humectant that attracts and binds water to the skin and hair
- Forms part of the skin's Natural Moisturizing Factor (NMF), helping maintain optimal hydration
- Reduces transepidermal water loss (TEWL) and supports skin barrier integrity
- Improves skin flexibility, softness, and smooth appearance
- Helps hair retain moisture, reducing dryness and brittleness
- Works synergistically with hyaluronic acid, glycerin, panthenol, and other moisturizing ingredients
FAQs:
Q: What is Sodium PCA used for?
A: It is used as a powerful humectant to hydrate skin and hair while supporting moisture balance.
Q: Is Sodium PCA better than Glycerin?
A: Both are excellent humectants. Sodium PCA is a component of the skin's natural moisturizing system and is often used alongside glycerin for enhanced hydration.
Q: Is Sodium PCA suitable for sensitive skin?
A: Yes, it is gentle and commonly used in products designed for sensitive and dehydrated skin.
Q: Can Sodium PCA be used in hair care?
A: Yes, it helps improve hair moisture retention, softness, and manageability.
Q: Is Sodium PCA natural?
A: It is naturally present in the skin's NMF and is commonly produced for cosmetic use through controlled manufacturing processes.
