For decades, quaternary ammonium compounds (quats) were the gold standard in haircare for their detangling, conditioning, and anti-static effects. Later, quaternized proteins brought nature-inspired appeal, but both approaches still fell short—leading to buildup, irritation, and limited repair of deeper hair damage.

FSS Curezyme represents the next evolution. Powered by Curamina®, a biomimetic active that mimics enzymes naturally present in hair follicles, this advanced ingredient actively repairs peptide bonds, strengthens the hair fiber, and enhances resilience. Combined with FSS Hydrolyzed Vegetable Protein PF, a sustainable plant-based keratin alternative, Curezyme offers a lightweight, clean, and effective solution for modern formulations.

Designed for the post-quat era, Curezyme provides salon-grade performance without buildup, protecting against UV rays, pollution, frizz, and color fade, while improving curl retention and tensile strength across all hair types.

Made Of:

Formulated with Curamina® keratinoligase (a biomimetic enzyme that rebuilds peptide bonds) and AC Hydrolyzed Vegetable Protein PF, a sustainable plant-derived keratin substitute that supports deep nourishment and long-lasting protection.

Scientifically Proven

🌫️ Airborne Pollution Hair Protection Assay

Curezyme was shown to protect hair proteins from degradation caused by airborne pollutants. This means it helps maintain hair structure and health even in urban, high-pollution environments.

💧 Cationic Substantivity Hair Conditioning Assay

Tests confirmed Curezyme conditions hair without leaving behind heavy buildup. It strengthens the interaction between actives and hair strands, ensuring hydration and smoothness after rinsing.

🎨 Color Protection Assay (Microscopy Imaging)

Curezyme reduced fading of dyed hair after repeated washes and UV exposure. This preserves hair vibrancy and brightness for longer-lasting, salon-fresh color.

🌪️ Hair Curl Retention Assay

In high-humidity tests, Curezyme helped hair maintain curl definition and style integrity. This provides consumers with long-lasting styling protection in challenging environments.

☁️ Humidity Protection Analysis

The ingredient visibly reduced frizz and excess volume caused by humidity. It smoothed both virgin and chemically treated hair, keeping natural patterns intact.

💇 Salon Half Head Study

When applied at 2%, Curezyme improved shine, softness, and overall appearance in both wet and dry hair. Professional testing confirmed visibly healthier-looking hair after just one application.

🧵 Tensile Strength After Repeated Washes Assay

Curezyme enhanced elasticity and tensile strength across multiple hair types, including straight, wavy, and curly. This protects hair fibers against breakage from repeated washing.

☀️ UV Hair Protection Assay

Under 48 hours of UV exposure, Curezyme preserved hair’s essential tryptophan and lipids while reducing lipid peroxidation. This shields strands from sun damage and maintains long-term structural integrity.

Solubility

Water-Soluble

Use Levels

2.0%-5.0%

Appearance

Clear to slightly hazy liquid