Hydro-glycerine extracts

Solvents are used according to the type of active ingredient required, and whether a particular substrate is to be preferred or eliminated.

Historically, the most common in cosmetics are hydroglycolic extracts, whose solvents are water and a glycol (either propylene glycol or butylene glycol). The ratio of water to glycol is 50:50.

Today, there is a growing interest in extracts whose solvent is glycerine, with a 50:50 ratio of glycerine to water, with or without preservatives.

Extracts can be preserved with various preservatives.

We offer a cocktail of effective preservatives as standard: citric acid, sodium benzoate and potassium sorbate at 0.2% each.

We also work with other preservatives at our customers' request.