OSIS+ Flatliner Heat Protection Spray 200ml

All hair and skin types.

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

People who use styling products that benefit from quick drying or a lightweight feel.

Its quick evaporation can help reduce residue and support a clean finish in styling formulas. Some may notice it can feel slightly drying in leave-in products depending on hair type.

People wanting a light, non-greasy smoothing or shine finish.

Often used in serums and oils for a weightless feel. Some prefer silicone-free options depending on routine.

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.

Hair wanting added body, smoothness or temporary strength.

A common protein in repair and volumising formulas.

Those looking to support softness, shine, or improve the feel of damaged or dry hair.

Silk proteins can temporarily coat the hair, helping it feel smoother and more manageable. They are commonly used alongside other conditioning and moisturising ingredients.

Most hair types, especially dry or dull hair.

A versatile, well-tolerated conditioning ingredient.

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

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

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.

People who enjoy a scented product.

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

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.

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.

Anyone who uses water-based products that benefit from reliable preservation.

It is commonly used alongside other preservation systems to maintain product freshness and extend shelf life. It is generally well tolerated in rinse-off and leave-in products.

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 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.

Those who enjoy floral-scented hair products or are checking for specific fragrance components.

It is naturally found in essential oils such as rose and geranium and is commonly used to enhance scent profiles. It must be listed on labels when present above certain trace levels.

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.