BTX Smoothing Treatment 1 Litre

All hair and skin types.

Almost always the first ingredient listed in water-based products.

People looking for smoother, more manageable hair or richer, creamier product textures.

Despite the name, fatty alcohols are moisturising and conditioning rather than drying. They also help stabilise and thicken many haircare formulas.

Most hair types, especially tangle-prone or coarse hair.

A common conditioner ingredient despite the chloride name, which simply describes its chemistry.

Those looking for conditioning, slip, or richer textures in their haircare products.

Despite the name, fatty alcohols like cetyl alcohol are non‑drying and are commonly used to add emollience and stability to formulations.

People looking for improved manageability, detangling and smoother-feeling hair.

It is a commonly used quaternary ammonium compound that helps conditioners spread easily through the hair. It is effective even at low levels, which is why it appears frequently in rinse-off products.

Dry or dehydrated hair, and many curl and moisture routines.

A very common, well-tolerated humectant used across countless products.

Damaged, chemically treated or fragile hair wanting reinforcement.

Protein routines suit some hair well, while very protein-sensitive hair may prefer balance with moisture.

Hair wanting added body, smoothness or temporary strength.

A common protein in repair and volumising formulas.

People with weakened, chemically treated, or brittle hair looking for a reinforcing ingredient.

Hydrolysed proteins are broken into smaller fragments so they can more easily interact with the hair surface. They are commonly used to enhance conditioning performance alongside other moisturising ingredients.

Most hair types, especially dry or dull hair.

A versatile, well-tolerated conditioning ingredient.

People wanting a light, non-greasy smoothing or shine finish.

Often used in serums and oils for a weightless feel. Some prefer silicone-free options depending on routine.

Frizz-prone, coarse or dry hair wanting a smooth, glossy finish.

Some people prefer silicone-free formulas, especially for certain curl routines. It is widely used and helpful in many smoothing products.

Damaged, frizz-prone or colour-treated hair wanting targeted smoothing.

Designed to deposit where hair needs it most. Some prefer silicone-free formulas by choice.

Those using products that need light cleansing or stable blends of oils, silicones, or fragrances.

It is commonly used to solubilise fragrance or silicone ingredients in shampoos and treatments. Its mild, nonionic nature means it typically works well alongside other surfactants.

People looking for smoother, easier-to-comb hair or reduced frizz.

Despite its name, it is not a sulphate surfactant but a quaternary conditioning ingredient commonly used in creams and conditioners. It is valued for providing a light, non-greasy conditioning feel.

People who enjoy a scented product.

Fragrance preference is personal. Some people prefer fragrance-free formulas by choice.

Most hair types as part of a balanced formula.

Usually present in small amounts to balance the formula.

All products, especially in hard-water areas.

Used in tiny amounts to keep formulas performing reliably.

All products that need protecting from spoilage.

A very common, well-studied preservative used at low levels.

Those needing products with reliable protection against product spoilage.

It is effective in very small amounts to support product longevity. Some people with sensitive skin or scalps may prefer to patch test products containing this preservative.

Those looking for products with robust preservation, particularly in rinse-off formulas.

It is widely used in small amounts to protect formulas from microbial growth. Some people with sensitive skin or scalps may prefer to patch test products containing isothiazolinone preservatives.