Liss Expert Professional Stem Cells Smoothing Treatment – 250 ml Shoulder-Length Keratin + Argan Oil for Frizz-Free Shine (Formald

Liss Expert Stem Cells Smoothing Treatment is a professional-grade, formaldehyde-free keratin system infused with plant stem cells, argan oil and collagen to smooth, hydrate and reduce frizz for up to 12 weeks.

This 250 ml treatment is formulated for shoulder-length hair and designed to deliver salon-style straightening and lasting manageability at home when applied according to instructions. Combining hydrolyzed keratin, nutrient-rich argan oil and plant-based stem cells, the formula targets damaged, porous and unruly hair to restore softness and reflective shine. For best durability and sealing of the treatment, a flat iron (titanium recommended) is necessary as part of the finishing step.

How does this treatment tame frizz and add shine?

The formula rebuilds and smooths the hair fiber while laying a lightweight finish that reflects light. Keratin repairs internal structure, argan oil supplies instant gloss and slip, and collagen helps improve elasticity for fewer flyaways.

• Hydrolyzed keratin to strengthen and smooth cuticles.
• Argan oil for immediate softness and luminous shine.
• Collagen to improve flexibility and reduce breakage.
• Plant stem cells to support scalp and follicle vitality.

How long will the straightening effect last and what affects duration?

When the three-step protocol is followed and the hair is properly sealed with heat, results can remain visible for up to 12 weeks. Frequency of washing, exposure to chlorine or salt water, heat styling habits, and the natural texture of your hair influence longevity.

• Up to 12 weeks of smoother, more manageable hair with correct application.
• Avoiding harsh shampoos and frequent salt/chlorine exposure preserves results.
• Titanium flat iron recommended for the most durable seal.
• Touch-up treatments or maintenance products extend smoothness between applications.

Is the product safe and easy to use at home?

The treatment is formulated without formaldehyde and is intended for consumer use when directions are followed. It’s packaged with a step-by-step guide; accuracy in timing, sectioning and heat application is essential for safe, effective results.

• Formaldehyde-free formula for cleaner at-home application.
• Three-step system simplifies the professional technique for home users.
• Requires a flat iron to lock in the smoothing effect safely.
• 8.45 oz (250 ml) supplies one shoulder-length application.

What hair types benefit most from this smoothing treatment?

The system is formulated to perform on a wide range of textures, from wavy and frizzy to chemically treated hair that needs structural repair. It’s optimized to reduce frizz, enhance manageability and add gloss without leaving heavy residue.

• Wavy, frizzy or coarse hair seeking sleeker styling.
• Color-treated or chemically processed hair needing repair and shine.
• Fine hair types that benefit from lightweight conditioning without buildup.
• Anyone wanting longer-lasting smoothing between salon visits.

Who is this for: Liss Expert Stem Cells Smoothing Treatment suits users who want professional-caliber straightening at home, plus those looking to repair damaged strands while preventing frizz. It’s especially useful for people with shoulder-length hair (250 ml recommended), those avoiding formaldehyde-based products, and anyone willing to follow the three-step application and use a flat iron to achieve and maintain salon-like smoothness and shine.

Ingredients

Collagen