Professional vs drugstore makeup

In three categories the difference is technical and it shows: foundation, mascara and brushes.

In foundation the difference is pigment load and the binder — a professional formula usually gives more coverage from less product and stays put longer. In mascara it is formula stability: cheap mascara transfers to the lower lid more often.

In four categories the correlation between price and result is weak, and the drugstore version does effectively the same job.

• Powder — if it is finely milled, price changes nothing
• Blush — pigment is adequate in both
• Brow pencil — what matters is firmness and shade, not the brand
• Micellar water and cleanser — the formulations are close to identical

The word is not a regulated term and it is frequently just marketing. A genuinely professional product is one built for working on other people: large packaging, decanted onto a palette, formulated for a camera.

That means some professional products are worse for everyday use. Something formulated for studio lighting frequently reads as too heavy in daylight.

One practical rule: pay for what stays on your skin as a layer all day, and save on what sits on the surface or gets used up quickly.

By that logic foundation and mascara are worth it, powder and blush are not. Brushes are their own category: they last years, so their cost per use is already small whatever you paid.

An expensive product past its date causes as many problems as a cheap one. Expired mascara is the single most common cause of eye irritation, and its life is usually about three months from opening.

This is the case where replacing an inexpensive product more often is both safer and more effective than keeping an expensive one for years.