The Perfect Blonde Purple Toning Shampoo

All hair and skin types.

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

Those who prefer a deep‑cleaning or clarifying effect, especially in shampoos.

It is often used in clarifying formulas because it creates a rich lather and provides an effective cleanse. Its intensity can feel more cleansing than milder surfactants, depending on hair type and formulation.

People looking for gentle or low-foaming cleansing options.

It is commonly used in sulphate-free formulas due to its mildness and compatibility with sensitive scalps. It can also help improve the spreadability of a formula.

Most hair types, including those wanting a gentler wash.

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

All products that need protecting from spoilage.

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

Most hair types as part of a balanced formula.

Usually present in small amounts to balance the formula.

All products that need a preservative system.

Often paired with other preservatives for broad protection.

People who enjoy a scented product.

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

Most hair types wanting smoother, easier-to-manage hair.

Widely used in shampoos and conditioners for slip and softness.

Those who like creamy, luxurious-feeling shampoo or conditioner textures.

It also provides a mild conditioning feel, helping formulas spread smoothly through the hair. Its use is common in many everyday cleansing products.

Those looking for products with effective cleansing or evenly dispersed ingredients.

It is commonly used at low levels to support texture and clarity in shampoos and styling products. Despite being a surfactant, it is often included for solubilising rather than strong cleansing.

Those living in hard-water areas or using products designed to maintain formula clarity and effectiveness.

By binding minerals, it can help reduce the impact of hard water on hair feel and product behaviour. It is commonly used in modern, mild formulations.

Those seeking added softness, lubrication or a richer feel in hair products.

As a triglyceride of oleic acid, it can enhance slip and manageability without feeling heavy in well‑balanced formulas. It is commonly used in conditioning and treatment products.

Those interested in how product pH affects scalp comfort or hair cuticle behaviour.

It is used in very small amounts to bring a formula to the desired pH range. Once adjusted, it does not act as a strong alkaline agent in the finished product.

Those looking for gentle cleansing ingredients derived from plant oils.

It is often used to help adjust the texture and cleansing profile of shampoos and can also contribute to conditioner emulsions.

Those interested in how a product’s texture and lather are achieved.

It is a simple mineral salt that helps create a familiar shampoo feel and can influence how a cleanser spreads through the hair.

People seeking detangling, reduced frizz and improved manageability; commonly found in conditioners, leave-in treatments and detangling sprays.

Derived from coconut fatty acids, it deposits on hair to provide conditioning and antistatic benefits and is often used alongside surfactants and emollients. A small number of people with sensitive skin or specific amide/amine allergies may experience irritation, so patch-testing fragranced products or those with multiple active ingredients can be useful.

Cocamidopropyl Dimethylamine is a tertiary amine amphiphilic molecule used primarily for its cationic or anti-static properties, helping formulations improve wet and dry combing. It is used at low concentrations in rinse-off and leave-on hair products and is distinct from cocamidopropyl betaine (a mild surfactant) though both are coconut-derived. Formulators may choose it for lightweight conditioning without heavy silicones.

People with weakened, chemically treated, or breakage-prone hair may appreciate its reinforcing effect.

Hydrolysed proteins are broken into smaller fragments so they can more easily interact with the hair’s surface. They are commonly used alongside conditioners and humectants for a balanced feel.

Those interested in products formulated for an optimal pH balance.

It is the sodium salt of glycolic acid and is commonly used to help keep formulations stable. In haircare, appropriate pH contributes to how smooth and manageable the hair feels.

Those looking for formulas that help smooth the cuticle or gently refine the scalp surface.

Lactic Acid can also provide mild hydrating and smoothing benefits in haircare. Its pH-balancing role helps support product stability and performance.

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 wanting added nourishment or antioxidant support in their haircare routine.

Tocopherol is commonly included to help protect oils in a formula from oxidising and to offer light conditioning benefits. It is widely used in both skincare and haircare products.

Those looking for lightweight, plant-based conditioning oils.

It is commonly used to enhance slip and reduce dryness in formulas. Being a blend, its exact composition can vary but it is generally well tolerated.

Those who enjoy subtly scented haircare products.

It is one of the fragrance components that must be listed separately when present above certain levels. People with known fragrance sensitivities may choose to monitor for it.

A fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.

A fragrance component that must be listed separately on labels because a minority of people can be sensitive to it. Its presence is normal, required disclosure and is not a quality signal.

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.

Those interested in understanding preservative systems or identifying potential fragrance allergens.

Benzyl Alcohol is commonly used in professional haircare to support product stability and texture. It can also naturally occur in some essential oils.

People using colour-depositing shampoos, conditioners or masks may find it relevant.

It is commonly used in purple and violet toning formulas to help reduce the appearance of brassy or yellow tones in lightened hair. It is present in very small amounts to achieve precise colour effects.

Those who prefer products with visually appealing colours.

It is used at low levels to enhance the look of a formula without affecting hair performance. Colourants like this are common in shampoos, conditioners and styling products.