The Circle Purity 50ml

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.

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

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

Most hair types, especially tangle-prone or coarse hair.

A common conditioner ingredient despite the chloride name, which simply describes its chemistry.

Those who want a conditioning feel without the weight of richer oils or butters.

It is often used to improve spreadability and give hair products a silky, non-greasy finish. It can also help enhance product absorption and overall texture.

Those looking for smoother-feeling hair or products that spread easily without heaviness.

This ingredient is commonly used to give conditioners and styling products a light, silky texture. It can also help enhance the overall sensory feel of a formula.

Those seeking clarifying or deep‑cleansing haircare products.

It is often used in small amounts to support purifying formulas without affecting texture significantly. Its dark colour does not typically stain when properly dispersed in a product.

Those with oily scalps or those using styling products that benefit from a matte, volumising effect.

Kaolin is a naturally occurring clay that can help improve product texture while offering mild cleansing without stripping. It is commonly used in scalp treatments, masks and texturising products.

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 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.

All products that need a preservative system.

Often paired with other preservatives for broad protection.

All products, especially in hard-water areas.

Used in tiny amounts to keep formulas performing reliably.

Most hair types as part of a balanced formula.

Usually present in small amounts to balance the formula.

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.