Smooth Straight Works Serum Gel 150ml

All hair and skin types.

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

Anyone looking for longer-lasting hold, enhanced definition or improved style memory.

It is widely used in gels, mousses and sprays because it creates a flexible film on the hair shaft. Its performance can vary with humidity, so it is often blended with other polymers for stability.

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

A very common, well-tolerated humectant used across countless 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 using products with essential oils or fragranced blends, as it helps disperse these evenly.

It is widely used as a gentle solubiliser in both leave‑in and rinse‑off products. Its presence can improve product consistency and prevent ingredient separation.

Useful for those who prefer haircare products with clear, consistent textures or evenly dispersed fragrance and oils.

It is widely used in shampoos, conditioners and styling products to keep formulations stable and smooth. It also offers mild surfactant properties that support product rinse-off.

Most hair types, especially dry or dull hair.

A versatile, well-tolerated conditioning ingredient.

Hair wanting added body, smoothness or temporary strength.

A common protein in repair and volumising formulas.

Those looking for added softness, light smoothing or gentle strengthening benefits.

Its smaller molecular size allows it to coat hair more easily than regular starch, offering a softening effect without heaviness. It is commonly used in both rinse-off and leave-in formulations.

People looking for improved manageability, frizz control or soft styling hold.

It is commonly used in both shampoos and styling products because it enhances slip and helps hair feel smoother. It can also support curl definition and reduce static.

Those interested in how product pH affects hair and scalp feel may find its presence relevant.

It is commonly used at low levels to help formulas stay effective and consistent. It does not act on the hair directly but supports the overall product performance.

Anyone who prefers smooth, consistent textures in styling or leave-in products.

It helps formulas stay evenly mixed and glide easily through the hair or onto the scalp. It is widely used because it works in very small amounts and provides reliable texture.

All products, especially in hard-water areas.

Used in tiny amounts to keep formulas performing reliably.

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.

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.

Anyone using products that benefit from a long, reliable shelf life.

Propylparaben is a widely used preservative that helps maintain product quality and freshness. It is used at very low levels and is well studied for its role in keeping formulations stable.

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.

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.