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Keratin Intense Serum

Keratin serum for straightened, keratin-treated and heat-styled hair nourishes and strengthens hair. Sodium chloride free, it maintains hair straightening results for 3 times longer.

Hair straightening methods weaken hair and cause permanent damage, loss of moisture, elasticity and shine. Keratin Intense Serum by Natural Formula was developed especially for straightened, keratin-treated and frequently heat-styled hair.

The serum repairs, nourishes and strengthens each strand, restores elasticity and leaves hair softer, smoother and shinier.

Keratin Intense Serum maintains straightening results thanks to:

  • Keratin enriched double-action formula – rebuilds hair strands from within and forms a protective coating that smooths hair
  • Straightening results last 3 times longer – enriched with panthenol to enhance keratin action, it strengthens and protects hair against breakage and damage caused by heat and chemicals
  • Sodium chloride free – prolongs the effects of a straightening treatment and gently cleanses hair without drying it out
  • Rich in moisturizing ingredients, vitamins and gentle silicones – protects hair against damage caused by weather and makes hair soft, shiny and easy to comb and style

After use, hair is stronger, smoother, shinier and more resistant to breakage.


Apply evenly to damp or dry hair. Suitable for daily use. For best results, use with Keratin Intense Shampoo, Conditioner and Mask.

Size: 145 ml | 4.8 fl.oz.

Additional Products
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Keratin Intense Shampoo
Keratin Intense Shampoo 99£
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Keratin Intense Conditioner
Keratin Intense Conditioner 99£
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Keratin Intense Hair Mask
Keratin Intense Hair Mask 99£
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Keratin Intense Heat Protection Cream
Keratin Intense Heat Protection Cream 99£
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Keratin Intense Ampoules
Keratin Intense Ampoules 99£
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Dry Shampoo for Keratin-Treated Hair
Dry Shampoo for Keratin-Treated Hair 599£
Details >>
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Cream & Keratin
Cream & Keratin 99£
Details >>

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