Cysteine Hcl

Product Description

Cysteine HCl is a stabilized amino acid derivative widely used in cosmetic and personal care formulations. As a sulfur-containing amino acid compound, it helps support antioxidant defense systems while improving overall skin and hair condition. This multifunctional ingredient provides antioxidant, conditioning, and protective benefits and is especially valued in hair care and protective skincare applications. Ideal for antioxidant, protective, skin-conditioning, and hair care cosmetic formulations.

Product Specification

• INCI Name: Cysteine HCl
• Synonyms: L-Cysteine Hydrochloride
• CAS No.: 7048-04-6
• Appearance: White crystalline powder
• Active Content: ≥98% (Typical)
• Source: Amino Acid Derivative
• Solubility: Soluble in water
• Stability: Stable under normal cosmetic formulation conditions; protect from prolonged moisture exposure
• Origin: China

Key Benefits & Applications

Cysteine HCl provides scientifically supported benefits for cosmetic formulations:

• Antioxidant: Helps reduce oxidative stress caused by environmental exposure
• Free Radical Scavenger: Supports protection against free radical damage
• ROS Inhibitor: Helps support skin and hair defense against reactive oxygen species
• Hair Bonding/Repair: Helps improve the appearance of dry and damaged-looking hair
• Anti-Pollution & Protection: Helps protect skin and hair from environmental stress exposure
• Applications: Suitable for shampoos, conditioners, serums, masks, protective skincare products, and hair care formulations

Formulation Guidelines

Recommended for aqueous-based cosmetic and hair care formulations. Ensure proper incorporation and stability for optimal efficacy:

• Solubilization: Dissolve in water phase before combining with other ingredients
• pH Range: Maintain between 3.5 - 6.5 for optimal stability
• Temperature: Avoid prolonged exposure to temperatures above 60°C during formulation
• Synergy: Combine with Glutathione for enhanced antioxidant and protective benefits