L’Oreal Professional Serie Expert Liss Unlimited Shampoo
What It Is
Smoothing shampoo for unmanageable, frizzy hair.
What It Does
Liss Unlimited Smoothing Shampoo nourishes & smooths the hair fiber. Pro-Keratin Complex mimics the hair’s natural Keratin structure to reinforce the hair fiber while Oil Extracts, including KuKui & Evening Primrose Oil, prevent frizz and facilitate an easy blow-dry.
What Else You Need to Know
Liss Unlimited is a complete smoothing regimen for unmanageable hair that strengthens and protects while providing 4 days of smoothness in up to 80% humidity.*
*Instrumental test: Shampoo + Conditioner/Masque + Blow-dry cream vs. classical shampoo
| Key Features | Details |
|---|---|
| Pro-Keratin Complex | Mimics natural keratin structure to reinforce hair fiber |
| Oil Extracts | KuKui and Evening Primrose Oil to prevent frizz and aid blow-dry |
| Smoothness Duration | Up to 4 days in up to 80% humidity |
FAQ
How long does the smoothing effect last?
The smoothing effect lasts up to 4 days in up to 80% humidity, as tested in instrumental conditions.
Does this shampoo work on all hair types?
It is specifically formulated for unmanageable and frizzy hair. Results may vary depending on individual hair type and condition.
Can I use this shampoo with other L’Oreal Professional products?
Yes, it is part of a complete smoothing regimen and works best when used with the Liss Unlimited Conditioner and Masque.

John Scott –
My frizzy hair has been much smoother since using this shampoo. After just one use, I noticed less flyaways and easier blow-drying. The texture feels rich and doesn’t leave hair feeling dry. I’ve used it with the conditioner and it lasts several days even in humid weather.
Keith Howard –
This shampoo really helps with frizz, especially in the summer. The oil extracts make the hair feel soft and manageable. I still need to use the conditioner for full results, but the difference is noticeable after a few days.
Victor Murray –
I’ve tried several smoothing shampoos, and this one stands out. The Pro-Keratin Complex gives strong reinforcement, and my hair feels stronger and less prone to breakage. It’s a great addition to my routine.