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Hair Reconstruction

K19 Keratin Protocol

Professional K19 keratin protocol in central Milan: keratin infusion to strengthen the hair fibre for smoother, stronger-looking and healthier hair.

60 minHair Reconstructionsteps from Corso ComoEnglish-friendly

Strengthen the hair fibre from within

The K19 Keratin Protocol is a professional fibre-infusion treatment designed to replenish and reinforce the natural keratin structure of the hair. As hair’s primary structural protein, keratin is gradually depleted by chemical services, heat styling and environmental stress. The K19 protocol delivers a targeted concentrate of hair-compatible keratin directly into the cortex, helping restore the internal architecture of each strand.

The result is hair that appears visibly stronger, smoother and more resistant — with improved elasticity and reduced fragility along the entire length.

Who it is for

  • Those with chemically treated, bleached or colour-damaged hair
  • Hair that feels rough, porous or lacks elasticity
  • Those experiencing recurrent breakage along the hair length
  • Clients who wish to strengthen the fibre without altering their natural texture
  • Anyone looking for a professional keratin programme with long-lasting visible results

How it works

  1. Hair assessment detailed evaluation of keratin depletion, porosity and fibre integrity to calibrate the K19 formula concentration
  2. Preparation cleansing and cuticle opening to ensure maximum penetration of the keratin complex
  3. K19 infusion the concentrated keratin formula is applied and sealed into the hair cortex using controlled professional heat
  4. Sealing and smoothing the cuticle is closed and a finishing treatment is applied to enhance surface smoothness, shine and manageability

Cosmetic benefits

  • Hair that looks and feels genuinely stronger and more resilient
  • Reduced frizz and dramatically improved manageability
  • Smoother cuticle for enhanced shine and softness
  • Improved elasticity and reduced breakage along the hair length
  • Restored body and structure for a healthier hair appearance overall

Frequently asked questions

01
What is K19 and how does it differ from standard keratin treatments?

K19 is a professional keratin infusion protocol that works by delivering a concentrated complex of keratin proteins and supporting active ingredients into the hair cortex. Unlike some older keratin systems, K19 is formulated without formaldehyde and focuses on genuine fibre strengthening rather than a temporary surface coating.

02
Will the K19 protocol make my hair straight?

The K19 protocol is a strengthening and reconstructing treatment, not a straightening service. It may reduce frizz and improve manageability, but it does not chemically alter the hair's natural wave or curl pattern.

03
How many K19 sessions are typically recommended?

The number of sessions depends on your hair's current condition and your goals. Typically, an initial series of two to three sessions is followed by a maintenance programme. Your Kronocare specialist will personalise the plan during your check-up.

Central Milan

Still have questions?

The quickest way to find your starting point is the check-up. We listen, assess your scalp and hair, and build a protocol together.

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