Renewal Keratin Smooth Conditioner No.4

Keratin-Infused Smoothing & Revitalizing Hair Conditioner for Post-Treatment Care

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Renewal Keratin Smooth Conditioner No.4

Daily Maintenance

Product Overview

Renewal Keratin Smooth Conditioner No.4 is a professional-inspired smoothing and revitalizing hair conditioner formulated to complement keratin treatment systems and deliver enhanced hydration, softness, and manageability. Infused with a rich complex of keratin, argan oil, and natural botanicals, this paraben-free conditioner helps revitalize hair after keratin treatments and daily cleansing routines. It nourishes, strengthens, and smooths hair fibers—leaving locks soft, vibrant, and more resilient.

Key Benefits

1. Enhanced Conditioning: Deeply replenishes moisture and nutrients to maintain softness and shine.

2. Supports Keratin Treatment Results: Helps sustain smoothness and manageability following professional keratin services.

3. Frizz Control & Smooth Texture: Infuses keratin and botanicals to tame frizz and boost smoothness.

4. Strengthens Hair: Fortifies strands from within to improve resilience and reduce breakage.

5. All Hair Types: Suitable for straight, wavy, curly, thick, or fine hair, ideal for everyday care or post-treatment maintenance.

Why Renewal Keratin Smooth Conditioner No.4

Renewal Keratin Smooth Conditioner No.4 delivers more than surface-level conditioning—its keratinenriched formula works synergistically with professional keratin shampoo and treatments to maintain the structural integrity and longevity of smoothing services. After keratin applications, hair can benefit from targeted nourishment that supports cuticle sealing, moisture balance, and frizz reduction. With its gentle, paraben-free formulation, this conditioner is designed to extend treatment results while promoting overall hair health and resilience—crucial for both salon use and daily at-home care.

Ingredients

AQUA、CETEARYL ALCOHOL、STEARTRIMONIUM CHLORIDE、DIMETHICONE、HYDROXYETHYLCELLULOSE、LAVENDER ESSENTIAL OIL、ROSE ESSENTIAL OIL、PARFUM、KERASOL、ISOHEXADECANE、ARGANIA SPINOSA KERNEL OIL(ARGAN OIL)、MACADAMIA INTEGRIFOLIA SEED OIL 、ALOE VERA EXTRACT、CITRIC ACID、PHENOXYETHANOL

How to Use

1. After shampooing, apply Renewal Keratin Smooth Conditioner No.4 to wet hair, focusing on mid-lengths to ends.

2. Massage gently to distribute the conditioner evenly.

3. Leave on for 2–3 minutes to allow nourishing ingredients to penetrate.

4. Rinse thoroughly with lukewarm water.

5. For best results, follow with your preferred styling or heat-protection products.

Ideal For

Post-keratin treatment maintenance and hydration
Enhancing softness, manageability, and shine in all hair types
Functional everyday conditioning in professional and at-home settings
Taming frizz, flyaways, and dryness
Supporting stronger, smoother, healthier-looking hair

ADVANCED KERATIN SMOOTHING SYSTEM

LONG-LASTING SHINE

FRIZZ CONTROL TECHNOLOGY

SALON PROFESSIONAL FORMULA

SCIENCE-BACKED INGREDIENTS

FORMALDEHYDE-FREE OPTIONS

ADVANCED KERATIN SMOOTHING SYSTEM

LONG-LASTING SHINE

FRIZZ CONTROL TECHNOLOGY

SALON PROFESSIONAL FORMULA

SCIENCE-BACKED INGREDIENTS

FORMALDEHYDE-FREE OPTIONS

Common Questions

How does Renewal Keratin Smooth Conditioner No.4 extend the life of a professional keratin treatment?

The No.4 Conditioner is specifically engineered as a long-lasting maintenance solution for treated hair. Its primary function is to replenish the keratin proteins that naturally deplete over time due to washing and environmental exposure. By reinforcing the protective layer created during the salon service, this keratin-infused conditioner ensures that the smoothing effect, frizz control, and mirror-like shine remain vibrant for up to several months longer than using standard commercial conditioners.

Why is the "Sulfate-Free and Sodium Chloride-Free" formula critical for aftercare?

Standard hair care products often contain harsh sulfates and salts that act as stripping agents, which can prematurely dissolve the keratin bond and open the hair cuticle. Our sulfate-free smoothing conditioner utilizes a gentle, moisture-rich delivery system. By eliminating aggressive surfactants, it maintains the hair’s natural pH balance and prevents the “leaching” of treatment nutrients, making it the essential daily conditioner for keratin-treated hair.

Can this conditioner repair hair that has not undergone a professional keratin treatment?

Absolutely. While it is the “gold standard” for aftercare, it also functions as an intensive daily reconstructive treatment for natural, dry, or chemically damaged hair. The blend of hydrolyzed keratin and botanical oils works to fill in structural gaps in the hair fiber, restoring elasticity and softness. It is an excellent choice for anyone seeking a professional frizz-control conditioner to improve manageability and prevent breakage without weighing the hair down.

How does the No.4 Conditioner specifically target frizz and humidity-induced volume?

Frizz is caused by raised hair cuticles seeking moisture from the air. The Renewal Keratin Smooth Conditioner features an advanced anti-humidity barrier technology. It works by smoothing the cuticles flat and sealing in essential hydration. This microscopic seal prevents external moisture from entering the hair shaft, effectively stopping frizz before it starts and keeping your hair sleek and disciplined even in high-humidity environments.

What is the recommended application technique to achieve "Salon-Smooth" results at home?

To maximize the benefits of this professional smoothing conditioner, start by cleansing with the No.3 Smooth Shampoo. Apply a generous amount of No.4 Conditioner from the mid-lengths to the ends—avoiding the scalp to maintain natural volume. Use a wide-tooth comb to ensure even distribution through every strand. For deep penetration, leave the product on for 3 to 5 minutes before rinsing with cool water. This closing of the cuticle with cool water locks in the keratin and boosts natural light reflection for a superior shine.

Pro-Selection

Keratin Clarifying Shampoo No.1

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Pre-treatment

Haircare Knowledge Hub

This article explains how long keratin treatments last, what factors affect longevity, and how proper aftercare can extend smooth, frizz-free results for different hair types.

Professional stylist blow-drying a woman's long, smooth brown hair into a sleek finish in a bright salon.

Does Keratin Treatment Damage Hair?

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