

FAQ (Frequently Asked Questions)
1. What is Sodium PCA?
Sodium PCA (Pyrrolidone Carboxylic Acid) is a naturally derived humectant and skin-conditioning agent. It is the sodium salt of PCA, a key component of the skin’s natural moisturizing factor (NMF), known for its ability to attract and retain moisture in skin and hair care formulations.
2. What is the INCI name and CAS number of Sodium PCA?
CAS Number: 28874-51-3
INCI Name: Sodium PCA
3. What are the main benefits of Sodium PCA in personal care formulations?
Highly effective humectant – helps retain moisture in skin and hair
Improves skin softness, elasticity, and hydration
Enhances hair manageability and reduces static
Gentle, non-irritating, and compatible with sensitive skin
Supports formulation of hydrating, anti-aging, and repair-focused products
4. In which types of cosmetic and personal care products is Sodium PCA used?
Sodium PCA is found in:
Moisturizers and face serums
Shampoos and conditioners
Body lotions and creams
Facial cleansers and toners
Aftershaves and post-sun care products
Anti-aging and sensitive-skin formulations
5. Is Sodium PCA safe for all skin types?
Yes, Sodium PCA is non-toxic, non-comedogenic, and hypoallergenic. It is considered safe for daily use, even on sensitive or acne-prone skin, and is suitable for both rinse-off and leave-on products.
6. Is Sodium PCA derived from natural sources?
Yes, Sodium PCA is often derived from natural amino acids, such as glutamic acid, making it a biocompatible and environmentally friendly ingredient used in clean and green beauty products.