Pillar guide · Preparation
Primer and Skin Preparation
Preparation is the technique, not the prelude. Most complaints about a foundation are complaints about what was underneath it.
Written by Lamyaa Aissi, professional makeup artist, Casablanca.
Base grips prepared skin and slides on unprepared skin, and the difference is invisible at ten minutes and obvious at hour two. That is why almost every complaint about a foundation is really a complaint about what went under it.
Primer is only one part of that. What decides the result is whether the skin was worked, layered and given time to absorb before anything was laid on top.
Matching the primer to the actual problem
Primers are not interchangeable and using the wrong one actively works against the base. A mattifying primer on dehydrated skin makes the skin produce more oil, not less. A hydrating primer under a long-wear matte foundation in coastal humidity gives you slide.
Choose for the specific problem — shine, texture, dryness, dullness — and apply it only where that problem is. Whole-face priming is rarely the right answer.
Dry versus dehydrated, which is the Moroccan distinction
Dry skin lacks oil. Dehydrated skin lacks water and frequently produces more oil to compensate, so it feels tight and looks shiny at once — and gets treated as oily, which makes it worse.
Dehydrated skin needs water underneath and something light to hold it there. A heavy occlusive over dehydrated skin makes the foundation slide within the hour.
Time, which nobody allows for
Each layer needs to absorb before the next goes on. Rushing it is what produces pilling — the small rolls of product that appear when a foundation is applied over a primer that had not settled.
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Questions
Do I actually need primer?
Not always. What you need is prepared skin. Primer is one way to solve a specific problem — shine, texture, dryness — and applying it whole-face by default often does nothing useful.
Why is my makeup pilling?
Layers applied before the one beneath has absorbed. Allow each layer to settle, and reduce the number of products going onto the same area.
What is the difference between dry and dehydrated skin?
Dry skin lacks oil; dehydrated skin lacks water and often produces more oil to compensate. Dehydrated skin feels tight and looks shiny at the same time, which is why it is so often mistreated as oily.
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