Fecha de publicación:
21/12/2017
Fuente: WIPO "propolis"
A combination of a Nannochloropsis gaditana extract and a propolis extract as an active component in cosmetic formulations for dermal and in particular anti-aging use, wherein an active component of the formulation is constituted of the combination of an extract of Nannochloropsis gaditana in water and 1,3-propanediol and an extract of propolis in water, glycerol and β-hydroxypropyl cyclodextrin at a content of 0.1 to 20% w/w, which is added into the mixture after having been incorporated in a citric acid buffer solution pre-mixture adjusted to pH = 7 with its conjugate base, in order to ensure the stability of the final product, and pH is then checked and adjusted as required by the addition of pH adjusters, which are either a 20% w/w sodium hydroxide (NaOH) solution or a 20%w/w citric acid (C6H8O7) solution for the final adjustment to pH = 7.