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Keratin Treatment Salons in Saint Louis, MO

3 of the 152 hair salons we list in Saint Louis have keratin smoothing treatments.

A keratin treatment smooths frizz and loosens curl for weeks to months. Every salon here names keratin or smoothing treatments on its own website.

  1. Studio D Luxe

    9993 Manchester Rd Ste 112, Saint Louis, MO 63122-1927

    KeratinExtensions
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  2. Cashmerian Beauty

    9212 Clayton Rd, Saint Louis, MO 63124-1510

    LocsSilk pressKeratinExtensionsColorBlowouts
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  3. Christopher Flynn

    1920 Park Ave, Saint Louis, MO 63104-2537

    KeratinColorBlowouts
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Ask about the product and aftercare. Formulas differ, and many ask you to wait before washing and to use sulfate-free products afterward.

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Good to know

How long does a keratin treatment last?

Often two to five months, fading gradually with each wash.

Is a keratin treatment the same as a relaxer?

No. Relaxers chemically change the hair’s structure for a lasting straightening effect, while keratin smoothing treatments reduce frizz and loosen the curl temporarily.