The present invention provides compositions and clear oil-in-water microemulsion containing up to 80% w/w of an oil, a surfactant system, a w/w oil/surfactant system ratio between 1 and 3, and a solubilizing-aid ingredient which is not a surfactant neither a VOC compound, the latter being present in an amount sufficient to ensure that the ratio oil/(surfactant+solubilizing aid) is comprised between 0.1 and 5. The present invention concerns also the articles and products associated the compositions and microemulsions, and the methods to manufacture them.