Preparing a dispersion of multilamellar vesicles or liposomes comprises dispersion of surfactant capable of forming vesicles or liposomes in an aqueous phase, solvent or oil, where the surfactant system contains 5-99 wt.%, preferably 70-90 wt.% of at least one alkyl polyglycosides (A). Preparing a dispersion of multilamellar vesicles or liposomes comprises dispersion of surfactant capable of forming vesicles or liposomes in an aqueous phase, solvent or oil, where the surfactant system contains 5-99 wt.%, preferably 70-90 wt.% of at least one alkyl polyglycosides of formula (RO(X) n) (A). R : 8-10C alkyl chain, with or without unsaturation； X : rest of xylose； and n (average degree of oligomerization) : 1-3. Independent claims are included for: (1) a process for including one or more cosmetic, pharmaceutical, phytopharmaceutical active ingredients, perfumes, enzymes, nutrients, trace elements, organic materials, essential oils, agents to oxidize or degrade organic molecules in multilamellar vesicles or liposomes, comprising mixing the crude active material oil or diluted in oil, solvent or in water with a surfactant, dispersing the mixture in an aqueous phase, solvent or oil, where the surfactant contains 5-99 wt.%, preferably 70-90 wt.% of at least one the alkyl polyglycoside； and (2) the surfactant system comprising 5-99 wt.%, preferably 30-90 wt.% of alkyl polyglycosides； 0.1-70 wt.% of one or more co-surfactants having an hydrophilic lipophilic balance (HLB) of at least 10； and 0.1-70% of water.Système tensioactif apte à former une dispersion de vésicules ou liposomes constitué de polyglycoside d'alkyle de formule RO(X), dans laquelle R est une chaîne alkyle linéaire ou ramifiée, avec ou sans insaturation, et comportant 8 à 12 atomes de carbone, X étant le reste d'un pentose, et n représentant le degré moyen d'oligomérisation est compris entre 1 et 3, et d'un hydrotrope ou co-solvant.
