Revlon Professional RE/START Hydration Moisture Micellar Shampoo

All hair and skin types.

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

Oily scalps, heavy product users and people who like a strong cleanse.

May feel too cleansing for some dry, curly, colour-treated or sensitive hair types. This depends on the full formula and your hair needs.

Most hair types, including those wanting a gentler wash.

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

Those looking for softer, smoother-feeling hair or gentle hydration.

Betaine is a naturally occurring molecule often used to improve hair feel and support moisture retention. It can also help enhance the overall mildness of cleansing formulas.

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.

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 using colour-treated hair products that aim to maintain vibrancy.

This ingredient is mainly used as a light stabiliser to support product longevity and colour protection. It is typically included at low levels to maintain product performance under light exposure.

Those with oily, congested or imbalance‑prone scalps.

It is an amino-acid derivative commonly used in scalp-care formulas for its gentle, supportive effect on the scalp barrier. It can also complement other soothing or clarifying ingredients in a routine.

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.

Those looking for products that stay stable in hard-water environments or that help protect colour vibrancy.

Chelating agents can improve the way a formula behaves by reducing the effects of metal ions that naturally occur in water or raw materials.

Those using stylers, treatments or serums that rely on smooth, even application.

It is commonly used in both leave-in and rinse-off products to support stable, easy-to-apply textures. It can also assist with product absorption and consistency.

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.

Anyone who prefers products with a richer, creamier feel or improved spreadability.

It is often used in conditioners and styling products to enhance texture and keep formulas stable over time. It also helps emulsify oil and water components for an even finish.

Those looking for mild cleansing or well-blended formulations that incorporate oils.

It is commonly used to improve formula clarity and texture in both cleansing and treatment products. Its mild nature makes it suitable for a wide range of hair types.

Most hair types, especially dry or dull hair.

A versatile, well-tolerated conditioning ingredient.

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

Widely used in shampoos and conditioners for slip and softness.

Those interested in products formulated for pH balance or stability.

It supports formula consistency and can enhance the performance of other ingredients by keeping the product within its optimal pH range.

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.

Those interested in how a product maintains stability and performance may find this ingredient relevant.

It is commonly used in small amounts to help products stay within an effective pH range. Its presence supports formulation texture and consistency.

Those seeking improved hydration, softness or smoother hair feel.

It is often used alongside other sugar-based moisturisers to support long‑lasting hydration. It is considered a gentle, conditioning ingredient suitable for most hair types.

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.

People who enjoy a scented product.

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

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 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.

Those who enjoy scented hair products or want a light floral note in their routine.

It is one of the fragrance allergens that must be listed on labels when present above certain thresholds. People who are monitoring fragrance components for sensitivity may find this information useful.

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.

All products that need protecting from spoilage.

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

All products that need a preservative system.

Often paired with other preservatives for broad protection.

Those who prefer products with a specific colour or enjoy visually distinctive formulas.

CI 42090 is widely used in personal care for consistent, stable colour effects. It does not affect how the product performs on the hair.

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.