My Bobbi Brown foundation oxidizes badly by noon, what can I do to set it so it lasts without looking cakey?

Oxidation by midday usually comes from oil breaking through, so prep is key — cleanse, hydrate lightly, and use an oil-controlling primer like Bobbi Brown Primer Plus Mattifier to keep sebum in check.

Applying thin layers of foundation with a damp sponge rather than a heavy coat also reduces how much the product shifts and darkens.

To set, use a finely milled powder such as Sheer Finish Loose Powder, pressing it gently into the t-zone instead of dusting heavily so the skin stays natural.

For extra longevity without cake, finish with a hydrating setting spray to meld powder and foundation together while keeping the base breathable.

These are key methods that we can offer. If you have more, please share.