Liss Expert Professional Stem Cells Smoothing Treatment — Shoulder-Length 8.45 oz Kit with Organic Keratin & Argan Oil for Frizz-F

Liss Expert Stem Cells Smoothing Treatment is a professional, formaldehyde-free straightening system that uses organic keratin, argan oil and hyaluronic acid to reduce frizz, add shine and smooth shoulder-length hair in one salon-style application.

This at-home professional kit from Liss Expert Professional is formulated to discipline unruly hair while protecting fiber integrity. The blend of organic keratin rebuilds structure, argan oil restores glossy surfaces, and hyaluronic acid locks in moisture for flexible, natural movement. It includes a single 8.45 oz treatment ideal for shoulder-length hair plus complementary salt-free shampoo and conditioner to extend results.

How does this treatment transform frizzy or damaged hair?

The formula targets the hair cuticle to smooth irregularities and reduce volume without harsh solvents. Organic keratin replenishes weakened areas while argan oil seals the surface, giving hair a sleeker profile and visible shine.

• Reconstructs fiber with plant-derived keratin
• Seals cuticles for reduced frizz and controlled volume
• Argan oil delivers instant gloss and softer texture
• Hyaluronic acid hydrates for flexible, natural movement

What makes this one-application kit suitable for shoulder-length hair?

The kit’s 8.45 oz treatment is portioned for a single complete service on shoulder-length hair, helping avoid waste while giving predictable coverage. Paired with the salt-free shampoo and conditioner, it prepares and maintains the hair for longer-lasting manageability.

• One recommended dose for shoulder-length hair
• Salt-free cleansing preserves the smoothing effect
• Conditioner helps lock in the treatment benefits
• Clear usage plan reduces guesswork for first-time users

Is this safe for all hair types and is formaldehyde included?

Liss Expert blends gentle actives to work across textures—from fine and chemically treated to thick and coarse—without adding formaldehyde. The odorless, organic-focused formula minimizes harsh fumes and aims to respect scalp and fiber health when used per instructions.

• Formaldehyde-free professional smoothing system
• Suitable for multiple hair textures and treatments
• Organic and low-odor profile for a calmer application
• UV protection to shield hair color and tone

How long do results typically last and how should I maintain them?

Results depend on hair porosity, upkeep and washing habits; most clients report several weeks of reduced frizz and improved manageability. Maintenance with the included salt-free shampoo and conditioner and minimizing high-heat styling prolongs the effect.

• Use salt-free products to extend smoothing longevity
• Avoid frequent clarifying shampoos that strip treatment
• Heat styling is optional—works with natural drying too
• Apply UV protection products if you are outdoors often

Who is this for: Liss Expert Stem Cells Smoothing Treatment is aimed at people seeking salon-grade smoothing without formaldehyde, especially those with shoulder-length hair who want a single-application kit. It fits users who want reduced volume, better manageability and enhanced shine while preferring organic-derived keratin and nourishing argan oil. Ideal for hairstylists offering professional at-home services or individuals comfortable following detailed instructions for a one-time application plus upkeep with salt-free shampoo and conditioner.

Ingredients

Collagen