Ends-Filler Concentrate (In-Salon) 13.5 fl. oz. - PRO LONGER

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Powered by the exclusive, patented thickening technology, Filler-A100 + Amino Acid, Pro Longer Ends-Filler Concentrate (In-Salon) is an exclusive in-salon treatment for long hair suffering from thinned ends.

Start your treatment with the in-salon application to maximize the results of ends filling and split ends reduction. Then, bring home the Ends-Filler Concentrate (At-Home) to continue the treatment. The results are long lasting and cumulative.


Long hair with thinned or split ends


  • Ends filling from first application
  • Reduces the appearance of split ends by 66%*
  • 50% more volume*

*When used with Pro Longer Shampoo + Pro Longer Mask + Pro Longer Concentrate versus unwashed hair.



Pro Longer's ingredients include an exclusive combination of FILLER-A100 + Amino Acid.


Penetrates the fiber core and thickens, as well as immediately conditions and resurfaces hair fiber. Only L’Oréal Professionnel owns the patented FILLER-A100 molecule.

Amino Acid
Strengthens and renews lengths.

  • 01

    New serie expert prolonger treatment packshot
    in salon only - 5 minutes Single Dose Treatment

    Ends-Filler Concentrate (In-Salon)

    Make an appointment at your local salon to receive the Pro Longer Ends-Filler Concentrate in-salon treatment.

  • 02

    New serie expert prolonger shampoo packshot
    In salon - 3 minutes LENGTHS RENEWING SHAMPOO

    Lengths Renewing Shampoo

    Your hairdresser will shampoo twice: first to cleanse, second to treat.

  • 03

    New serie expert prolonger cream packshot
    In salon - 3-5 minutes RENEWING CREAM FOR LENGTHS & ENDS

    Lengths Renewing Mask

    Your hairdresser will apply the Mask on towel-dried lengths and will leave in for 3 to 5 minutes.

New serie expert prolonger treatment 400ml packshot


Ends-Filler Concentrate (In-Salon)

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