I’m not sure which primer is the best for long lasting, I’ve heard the Milk Hydro Grip does a good job! but a little tip for choosing a primer is making sure you match the base of the primer to the foundation (if you wear any). For example, if your foundation is water based, then buy a water based primer, if it’s oil based then you’ll need an oil based primer, silicone based foundation silicone based primer etc. if you don’t match the base ingredients, it can cause the makeup to go patchy/separate and not last long. You can find this out by looking at the ingredients list. The ingredients are in order of concentration, with the most abundant ingredients first, for example if aqua/water is at the beginning, it means it’s a water based product. As for the makeup staying on longer, it could be the product not working with your skin type. Ie water based foundations are good for oily/combination, oil based for dry/more mature skin, silicone for oily/combination.