to tone up
- phrasal verb
- To achieve a firmer look, you should regularly apply products that tone up your skin.
Examples
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Those dry sort of like powdery tone up creams will be the death of me.
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It's called a tone up sun cream, but I don't know if it's going to actually like tone up my face.
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She uses a special lotion every day to tone up her skin and improve its texture.
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The new serum is designed to tone up the complexion and give it a radiant glow.
Synonyms
Antonyms
How Firm
Surface Forms
Morphology
The sense 'to improve firmness or appearance' is directly derivable from combining 'tone' (to firm) with the particle 'up' (indicating increase/improvement), so a learner who knows both constituents can infer the cosmetic meaning. This is a productive verb+particle construction found in many languages and in English usage, making the expression predictable rather than idiomatic.
Etymology
Tone up in skin care comes from tone meaning the skin's color and firmness and up meaning to improve it. One popular image is smoothing an uneven wall so the color looks even and the surface feels firmer, and that's why to tone up your skin means 'to improve the appearance, evenness, or firmness of the skin'.