beauty

Stem Cells Smoothing Hair Treatment, 8.45 oz

I use this

Three years of less frizz and smoother, shinier hair.

Stem Cells Smoothing Hair Treatment, 8.45 oz — My own photo. No stock images, no manufacturer renders.

My jar of Liss Expert Stem Cells hair treatment in my hand, with the orange lid on — My jar, in my hand.

My open jar of Liss Expert Stem Cells showing the white cream inside, with the orange lid beside it — Open: the white cream inside.

Looking down into my open jar of Liss Expert Stem Cells treatment — The texture, from above.

The back label of my Liss Expert Stem Cells jar with the directions and ingredients — The back label, with the directions and ingredients.

How long I've used it: Three years
Why I chose it: It helps me control frizz and volume
How my hair feels: Smoother, softer, easier to manage, with shine
How often: Not often. Roughly every 2 to 3 months, depending on your hair
What Liss Expert lists: Keratin, argan oil, hyaluronic acid and collagen
Mine: 250 ml (8.45 fl oz) jar

Angie's honest notes

I chose this treatment because it helps me control frizz and volume. My hair ends up smoother, softer, easier to manage, and with shine. I have been using it for three years.

It lasts. I don't need to apply it all the time. Depending on your hair type, how fast it grows and how you care for it, you can repeat it about every 2 to 3 months.

What's in it. Liss Expert lists keratin, argan oil, hyaluronic acid and collagen, which complement the treatment and help the look and manageability of the hair.

Good to know. This is a smoothing treatment, not an everyday mask. Follow the steps on the jar: the brand's directions include a flat iron to seal it. Liss Expert says the 250 ml (8.45 fl oz) size, the one I have, is for shoulder-length hair.

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Updated: September 27, 2026 · Photo: my own version. It may vary on Amazon.

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