Most of our extracts can be supplied in hydro-glycolic form and, being light in colour, are particularly suitable for delicately coloured products. Additionally, most extracts can be supplied in the darker aqueous form, and many in alcoholic or oil-miscible versions or variants of these.

Other vehicles can be supplied to requirements as well as providing preservative systems that will be acceptable to differing country’s legislation. Many manufacturers prefer to use a blend of plant extracts and we are pleased to supply such blends to a customer’s brief.

Formulators should bear in mind that many water-miscible plant extracts will change their depth of colour with the change in their pH balance. Once this has occurred, however, this reaction goes no further, but needs to be taken into account for very delicately coloured products. Thus if a product with an alkaline reaction is to have a plant extract incorporated, we would recommend that the extract be made alkaline prior to incorporation into the product.

This procedure is of particular value during product development stages: any colouration will be seen immediately rather than as a gradual change taking place over some days, and thus may be compensated for during the formulation.