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Description
Ingredients
Product Details
What it is:
The intelligent Serioxyl Thicker serum by L'Oréal Professionnel instantly re-densifies hair and leaves it feeling fuller and thicker thanks to its unique formula combination of thickness-bootsing activities by L'Oréal Advanced Research.
Product Options Available are as follows:
*Ingredients may vary slightly due to formula updates by brands. Please consult packaging for most accurate list of ingredients
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Frequently Asked Questions
Intra-Cylane is L'Oreal's proprietary fiber-building technology that works to thicken the hair fiber from within. It helps reinforce the hair's internal structure, making each strand appear fuller and stronger. This ingredient is the core of Serioxyl's thickening formula, designed specifically for fine or thinning hair.
Yes, L'Oreal Pro Serioxyl Intra-Cylane is safe for color-treated hair. The formula is designed to be gentle and non-damaging, making it suitable for all hair types including chemically treated, colored, or bleached hair. It complements color-care routines without compromising color vibrancy.
For optimal results, apply the serum 2-3 times per week to damp or dry hair, focusing on mid-lengths to ends. Consistency is key—regular use over several weeks allows the Intra-Cylane technology to progressively thicken and strengthen hair fibers. You can adjust frequency based on your hair's response and texture needs.








