The Therapist Hydrating Shampoo 300ml

All hair and skin types.

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

People looking for a gentle, low-irritation cleansing option or those using sulphate-free shampoos.

It is known for being milder than many traditional surfactants and is often used in formulas designed to maintain softness after washing.

People who like richer, creamier textures in shampoos and conditioners.

It is commonly used to enhance slip and add a silky feel to cleansing and conditioning formulas. It also helps stabilise the product texture.

Those with dry or dehydrated hair seeking smoother, more manageable texture.

It is commonly used to improve hair softness and maintain moisture balance in formulations. It can also support the spreadability and feel of leave‑in and rinse‑off products.

People looking for smoother, easier-to-detangle hair without a heavy silicone feel.

Because it is water-dispersible, it tends to rinse out more easily than many traditional silicones. It is commonly used in both rinse-off and leave-in formulas for added manageability.

Those who prefer products with a smoother, creamier consistency.

It is often used to create uniform, easy-to-spread formulations and can also contribute mild surfactant properties. It is commonly found in shampoos, conditioners and styling products.

Most hair types, including those wanting a gentler wash.

Often paired with other surfactants to make a formula feel milder.

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

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

All products that need protecting from spoilage.

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

People who enjoy a scented product.

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

Dry, dull or frizz-prone hair.

A popular conditioning oil used across many treatment and shine products.

People looking to maintain colour-treated hair or reduce UV impact on hair and scalp.

It is often used to help stabilise formulas that may be exposed to sunlight. Its presence can support the longevity of colour care products.

Those looking to enhance manageability, reduce the feel of dryness, or support colour retention.

Hydrolysed quinoa contains smaller protein fragments that can lightly film the hair, helping it feel smoother. It is often included in colour-care and strengthening formulas.

People seeking smoother, more manageable hair or help with frizz control.

This silicone is often paired with solubilisers like Trideceth-9 to help it disperse evenly in water‑based formulas. It is commonly used in conditioners and treatments for lasting smoothness.

Those who want products that remain fresh and effective throughout their shelf life.

Benzoic Acid is often used alongside other preservatives to create a broad-spectrum system. It also plays a minor role in helping maintain a product’s pH balance.

Those who want products to stay fresh for longer, including people who use products slowly or store them in humid bathrooms.

It is often used at low levels and works well alongside other preservative systems to support formula longevity. It is commonly included in both rinse-off and leave-in products.

Those looking for hydrated, smoother-feeling hair or lighter-feeling formulations.

It is commonly used to help ingredients dissolve and to give formulas a soft, glide-on texture. It appears in many leave-in and rinse-off products due to its versatility.

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.

Those interested in gentle preservation systems or sensitive scalps may find it relevant.

It is often paired with other preservatives to improve their effectiveness while allowing for lower usage levels. It also has light moisturising and conditioning properties.

Anyone who uses water-based products that benefit from reliable preservation.

It is commonly used alongside other preservation systems to maintain product freshness and extend shelf life. It is generally well tolerated in rinse-off and leave-in products.

Those who enjoy subtly sweet, complex fragrance profiles in their haircare products.

It is one of the fragrance components that must be listed individually when present above certain levels, as some people may prefer to monitor specific scent materials. Its presence does not indicate the overall strength of a product's fragrance.

Those who enjoy subtly floral-scented haircare or are monitoring specific fragrance allergens.

It is one of the fragrance allergens that must be listed individually on product labels when present above certain levels. Its presence does not indicate product strength or quality, only that it contributes to the overall scent profile.