Is this intensive repair serum suitable for sensitive scalps or hair types prone to irritation?

The serum contains soothing ingredients like glycerin and amino acids, but it also includes fragrance and methylisothiazolinone preservatives, which can trigger irritation in highly sensitive scalps; patch testing is recommended.

What benefits does hydrolyzed keratin provide in this hair serum?

Hydrolyzed keratin delivers fragmented protein that can penetrate the hair shaft, helping to replenish lost keratin, improve elasticity, reduce breakage and restore a smoother texture.

How often should the serum be applied and does it contain any controversial chemicals?

Apply a small amount to damp or dry hair 2–3 times per week, focusing on damaged ends; the formula contains methylchloroisothiazolinone and methylisothiazolinone, preservatives flagged for potential skin sensitization.

MARTHA DEBAYLE • 200ml

Intensive Repair Serum Suero reparador intensivo

Hair

Product Insights

The Intensive Repair Serum is a 200 ml hair treatment formulated with water, glycerin, a silicone blend, and a complex of amino acids and hydrolyzed keratin that aim to moisturize, strengthen and smooth damaged hair. Positive aspects include the humectant glycerin, protein‑rich ingredients such as arginine, aspartic acid and hydrolyzed keratin, and a silicone that provides slip, while the formula is labeled cruelty‑free. Potential concerns are the inclusion of fragrance, PEG‑40 hydrogenated castor oil and the preservatives methylchloroisothiazolinone and methylisothiazolinone, which may irritate very sensitive scalps.

Comparative Analysis

Positioned as an intensive repair hair serum, it differentiates itself with a protein‑dense blend of amino acids and hydrolyzed keratin combined with a silicone carrier for high‑shine, fast‑acting smoothing performance.

Ingredients

AGUA, GLICERINA, PROPANEDIOL PROPOXITETRAMETIL PIPERIDINIL DIMETICONA, TRIDECETH-6 SEDA, PCA SÓDICO/LACTATO SÓDICO/ARGININA/ ÁCIDO ASPÁRTICO /GLICINA/ALANINA/SERINA/VALINA/PROLINA/TREONINA/ISOLEUCINA/HISTADINA/FENILALANINA, KERATINA HIDROLIZADA, SUCCININAMIDA DE QUITOSANO, POLICUATERNIO-10, FRAGANCIA, CLORURO DE GUAR HIDROXIPROPILO HIDROXIPROPILTRIMONIO, PEG-40 ACEITE DE CASTOR HIDROGENADO, METILCLOROISOTIAZOLINONA / METILISOTIAZOLINONA, EDTA TATRASÓDICO

84%

35%

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