Taking to Charlotte Tilbury's Instagram page yesterday, Miller revealed the secret to achieving her flawless, 'your skin but better' base. While the spray is still setting, Miller then reapplies the Airbrush Flawless Finish to the same areas of the face once again. Sameeha using the Charlotte Tilbury Airbrush Flawless FinishWhen the Grazia beauty team first caught wind of the Charlotte Tilbury's 'airbrush sandwich hack', opinions were admittedly split. Every day without fail, my morning make-up routine ends with a light application of setting powder, which I dust off before spritzing on Charlotte Tilbury's Airbrush Flawless Setting Spray. Trust us, when it comes to beauty, Miller knows exactly what she's taking about.