Sarah K So Liss Deep Clean Shampoo | Step 1

The Sarah K So Liss Deep Clean Shampoo - Step 1 - Aloe Vera - 1000ml is the professional preparation step that opens the So Liss smoothing service. It deep-cleans the hair to lift away oil, styling product and residue, so the strands are left clean and even and ready to take up the Step 2 progressive system or the BTX mask. Built around Aloe Vera, it clears build-up while helping replenish amino acids, proteins and nutrients, giving the smoothing step a clean, uniform surface to work on. This is Step 1 of a professional salon system.

At a glance

What it is: the professional Step 1 deep-cleansing prep shampoo of the So Liss system
Star: Aloe Vera (Aloe Barbadensis leaf extract)
What it does: lifts oil, product and residue to prep the hair for smoothing
Also: helps replenish amino acids and nutrients as it cleanses
Where it fits: used before So Liss Step 2 or the BTX Volume Reduction Mask
Format: 1000ml, professional use

How it works

A smoothing service only bonds evenly if the hair is clean and free of build-up first. This shampoo is that preparation step. Its deep-cleansing base lifts away the oil, silicone, product and residue that coat the strand and block an even result, opening the cuticle so the Step 2 progressive system or the BTX mask can be laid down uniformly from root to tip. Aloe Vera supports the hair and scalp through the cleanse, and the formula helps replenish amino acids, proteins and nutrients at the same time, so the hair is prepared rather than simply stripped. Because it is a professional prep step, it is used at the start of the service, not as an everyday wash.

Key ingredients

Aloe Vera (Aloe Barbadensis leaf extract): a soothing botanical that supports the hair and scalp during a deep cleanse.
Amino acids, proteins and nutrients: help replenish the strand while build-up is removed.
A professional deep-cleansing base: lifts oil, product and residue so the smoothing step can work on a clean, even surface.
Polyquaternium-7: a conditioning polymer that keeps the hair manageable and comfortable to handle after cleansing.

What to expect

After washing, the hair feels genuinely clean and residue-free, with an even, prepared surface ready for the next step. Removing build-up first is what lets a progressive or BTX result set uniformly and last, so this step does quiet but important work: the better the prep, the more even the finish. The Aloe Vera and replenishing actives mean the hair is cleaned and conditioned rather than left rough. This is a professional preparation shampoo for the smoothing service; it is a step in a salon system, not a home-care wash on its own.

How to use

Step 1 -- Cleanse: apply the So Liss Deep Clean Shampoo to wet hair and wash through, repeating as many times as needed to remove all residue and build-up. On the final wash, leave it on for about 3 minutes, then rinse thoroughly so no shampoo residue remains. Step 2 -- Continue the service: once the hair is clean and towel-dried, begin the Sarah K So Liss Expert Tech Progressive System, or the BTX Volume Reduction Mask, following that product's own instructions. For professional use.

Safety: For professional, external use only. Keep out of reach of children. Avoid contact with the eyes, mouth and mucous membranes, and rinse well with water if contact occurs. If sensitization occurs, discontinue use. Store away from light, excessive heat and humidity. Check the full ingredient list on the label before use.

Who it is for

Stylists and salons running the So Liss progressive smoothing or BTX service who need a reliable Step 1 prep.
Hair carrying oil, product or residue that needs a clean, even base before a smoothing step.
Any hair type being prepared for the So Liss Step 2 system or the BTX Volume Reduction Mask.

Who it is not for

Anyone looking for an everyday moisturising or colour-care shampoo (this is a professional deep-cleansing prep, not a daily wash).
Home users without the rest of the So Liss system, since Step 1 is designed to be followed by the smoothing step.

Compatibility

This shampoo is Step 1 of the So Liss professional system. It is designed to be followed by the Sarah K So Liss Expert Tech Progressive System (Step 2) for progressive smoothing, or by the So Liss BTX Volume Reduction Mask for a volume-reduction finish. It is also sold within the So Liss kits, which pair the prep shampoo with the progressive system, the BTX mask, or both, so a salon can buy the exact configuration it runs.

In short

The professional Step 1 deep-cleansing prep shampoo of the So Liss smoothing system.
Lifts oil, product and residue to leave a clean, even base for the smoothing step.
Built around Aloe Vera; helps replenish amino acids and nutrients as it cleanses.
1000ml, professional use; used before So Liss Step 2 or the BTX mask.

Complete your So Liss service

Sarah K So Liss Expert Tech Progressive System Step 2 1000ml -- the progressive smoothing step this shampoo preps for.
Sarah K So Liss BTX Volume Reduction Mask 1kg -- the BTX volume-reduction finish, the alternative route after prep.
Sarah K So Liss Progressive Keratin Kit 2x1000ml -- this shampoo plus the Step 2 system in one kit.
Sarah K So Liss Deep Clean Shampoo & BTX Volume Reduction Mask Kit 1000ml + 1kg -- this shampoo paired with the BTX mask.

Frequently asked questions

What is the So Liss Deep Clean Shampoo, and what is Step 1 for?

It is the professional preparation step that opens the So Liss smoothing service. Step 1 deep-cleans the hair to lift away oil, product and residue, leaving a clean, even surface so the Step 2 progressive system or the BTX mask can be applied uniformly. Built around Aloe Vera, it also helps replenish amino acids and nutrients while it cleanses.

How do I use it, and how many times?

Apply to wet hair and wash through, repeating as many times as needed to remove all residue and build-up. On the final wash, leave it on for about 3 minutes, then rinse thoroughly so no shampoo remains. Once the hair is clean and towel-dried, begin the So Liss Expert Tech Progressive System or the BTX mask per that product's instructions. For professional use.

Where does it fit in the So Liss system?

It is Step 1, the prep. After deep-cleansing with it, the service continues with either the So Liss Expert Tech Progressive System (Step 2) for progressive smoothing, or the So Liss BTX Volume Reduction Mask for a volume-reduction finish. Preparing the hair first is what lets the smoothing step set evenly across the whole head.

Is it a daily shampoo, or only for the smoothing service?

It is a professional prep shampoo for the smoothing service, not an everyday moisturising wash. Its job is to clear build-up and leave a clean base before Step 2 or the BTX mask, so it is used at the start of the service rather than as a regular home-care shampoo. For daily washing, a maintenance shampoo is the better fit.

Which hair types is it suitable for?

It can be used to prepare any hair type that is about to have the So Liss progressive system or the BTX mask, since every type benefits from a clean, residue-free base before smoothing. Hair with heavy oil or product build-up may simply need more than one wash. A professional will judge how many washes the hair needs before moving on.

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