Sebastian Hydre Shampoo

All hair and skin types.

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

Oily scalps and routines that need a strong, clarifying wash.

Can be more cleansing than gentler surfactants. Many people use it happily, while others prefer milder options for everyday washing.

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 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.

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.

Anyone using products designed to stay within a specific pH range, such as colour‑treated or chemically treated hair.

It also has mild chelating abilities, helping formulas remain stable in the presence of minerals found in water. Its use supports the consistency and performance of many shampoos and conditioners.

Those who prefer shampoos with a richer, creamier foam.

It is made from fatty acids derived from coconut oil and monoethanolamine and is commonly used to stabilise foam and improve texture. It can also help thicken surfactant-based formulas.

People using shampoos or cleansers that need a consistent texture and even distribution.

It is commonly used as a hydrotrope, meaning it helps surfactants blend smoothly and maintain the right viscosity. It does not typically contribute strong cleansing on its own.

All products that need a preservative system.

Often paired with other preservatives for broad protection.

Most hair types as part of a balanced formula.

Usually present in small amounts to balance the formula.

Most hair types, especially dry or dull hair.

A versatile, well-tolerated conditioning ingredient.

Those looking for softer, easier-to-detangle hair.

It is derived from guar gum and is commonly used to enhance conditioning in shampoos and conditioners. It can also reduce static and improve manageability.

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 dealing with flaky scalps, congestion or product buildup.

It is widely used in scalp-care formulas because it breaks down excess oils and debris without needing physical scrubbing. Often found in dandruff-control products.

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

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

Those in hard-water areas who want shampoos and conditioners to rinse more cleanly.

Chelating agents can support formula consistency and help prevent minerals from depositing on the hair or interfering with product texture. They are widely used in many rinse-off and leave-in formulations.

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.

Anyone who wants products to stay fresh and stable over time.

Parabens like methylparaben are widely used because they are effective in very small amounts and have a long history of use in cosmetics. They help maintain product quality, especially in water-based formulas.

Those interested in identifying specific fragrance components in their products.

It is one of the fragrance allergens that brands must list separately on product labels when present above certain thresholds. Its inclusion does not indicate product quality; it simply helps with transparent fragrance disclosure.

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 interested in how a product’s pH is balanced, especially for colour‑treated or chemically processed hair.

It is used in very small, controlled amounts to fine‑tune a product’s acidity during manufacturing. The final product’s pH is carefully set for safe, everyday use.

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 interested in how a product’s preservation system is maintained.

It is commonly paired with other preserving ingredients to help keep formulas consistent over time. Its role is supportive rather than active in terms of preservation.

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.

People using styling or leave-in products that benefit from consistent texture and performance.

Magnesium chloride can also contribute mild humectant properties, helping formulas retain moisture. It is commonly used alongside other salts to adjust product feel and stability.

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.