Paul Mitchell Smooth Sealing Mask

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.

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 looking for improved slip, manageability and reduced static, especially in dry or textured hair.

It is often paired with fatty acids to enhance conditioning performance and provide a softer feel. It also helps detangle without weighing hair down.

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

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

Most hair and scalp types, including those wanting a gentle feel.

A popular botanical used across many gentle and moisturising products.

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.

Most hair types, especially dry or dull hair.

A versatile, well-tolerated conditioning ingredient.

People looking for lightweight conditioning benefits without a heavy silicone feel.

This is a modified silicone designed to be more dispersible in water, which can make it feel lighter on the hair. It is commonly used in modern conditioners and treatments for slip and detangling.

Those looking for softer, more manageable hair or extra slip in styling products.

It forms a lightweight film on the hair to reduce static and enhance glide without leaving heavy residue. It is commonly used in both rinse-off and leave-in formulas.

All products that need protecting from spoilage.

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

Those looking for added hydration or smoother-feeling hair.

It is also commonly used as a preservative booster to help maintain formula freshness. It is well tolerated in most haircare products.

Most hair types as part of a balanced formula.

Usually present in small amounts to balance the formula.

People who enjoy a scented product.

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

All products, especially in hard-water areas.

Used in tiny amounts to keep formulas performing reliably.

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.

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 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 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.