Semi Di Lino Scalp Relief Calming Tonic 125ml

All hair and skin types.

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

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

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

Those wanting lightweight hydration without heaviness.

It is often used as a gentle alternative to glycol-based humectants and can also help improve product texture and absorption.

Those using products with oils or fragrances that need even dispersion.

It is commonly used in serums, conditioners and styling products to keep formulas stable and smooth. It also helps improve the spreadability of a product without affecting hair feel.

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.

Those with dry or dehydrated hair types looking for extra moisture retention.

It is a sugar-derived ingredient often used alongside other moisturisers to improve hair softness and manageability. It can also support product texture and stability.

Those who enjoy soothing or refreshing scalp-focused formulas.

It is derived from menthol and lactic acid and is often used when a milder, slower-release cooling effect is desired compared with straight menthol.

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.

Those with dry, dehydrated or coarse hair seeking added softness and moisture retention.

It is the salt form of hyaluronic acid and is widely used because it can hold many times its weight in water. In haircare, it helps support smoother, more manageable strands without adding heaviness.

Most hair types, especially dry or dull hair.

A versatile, well-tolerated conditioning ingredient.

People with dry, damaged or chemically treated hair looking for plant-based protein conditioning; formulations aiming for improved strength, shine or frizz control.

Hydrolysed proteins are broken into smaller peptides and amino acids that more readily adsorb to or penetrate the hair shaft, offering temporary reinforcement and smoothing of the cuticle. Performance depends on concentration and formulation—effects are generally short-term and may vary with hair type.

Sourced from linseed (Linum usitatissimum), this ingredient is typically used at low percentages (often around 0.5–5%) in both rinse-off and leave-in products. It can work synergistically with humectants and conditioning agents to improve moisture retention and combability. pH and formulation type influence deposition and feel; in some formulations or at higher levels, hydrolysed proteins can make hair feel slightly firm or coated rather than soft.

Hair wanting a light conditioning boost.

A plant-derived extract whose effect depends on the amount used.

Those with a sensitive or easily irritated scalp may appreciate its calming properties.

It is commonly derived from chamomile or produced synthetically with similar benefits. It is widely used in both skincare and haircare for its gentle, comforting profile.

Those with a sensitive or easily irritated scalp may appreciate its calming effect.

It is widely used in personal care for its comforting feel and compatibility with many formulas. In haircare, it supports a smoother, more comfortable scalp experience.

People who enjoy a cooling effect or want products that help soothe a tired or congested scalp.

Menthol is often included in shampoos and scalp treatments for its sensory feel and refreshing aroma. It can enhance the perception of cleanliness and comfort during use.

Those wanting added nourishment or antioxidant support in their haircare routine.

Tocopherol is commonly included to help protect oils in a formula from oxidising and to offer light conditioning benefits. It is widely used in both skincare and haircare products.

Those seeking lightweight natural oils for moisture, shine or scalp comfort.

It is rich in fatty acids that support hair softness without feeling overly heavy. Often used as a carrier oil in both rinse-off and leave-in formulas.

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 interested in how product pH affects scalp comfort or hair cuticle behaviour.

It is used in very small amounts to bring a formula to the desired pH range. Once adjusted, it does not act as a strong alkaline agent in the finished product.

People who enjoy a scented product.

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

All products that need protecting from spoilage.

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

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.

All products that need a preservative system.

Often paired with other preservatives for broad protection.