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Loreal

Last updated January 31, 2026
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Rare-earth metal polymer crosslinking: LorealRecent Research Landscape

Irreversible structural damage occurs during traditional chemical hair reshaping, which is mitigated by using rare earth metals to stabilize keratin cross-linking. This approach maintains fiber integrity while allowing for permanent mechanical modeling.

What technical problems is Loreal addressing in Rare-earth metal polymer crosslinking?

Keratin fiber structural degradation

(18)evidences

Chemical and environmental stressors cause permanent damage to the protein structure of hair and skin. Preventing or reversing this breakdown maintains mechanical integrity and surface properties.

Keratin fiber structural degradation

(10)evidences

Environmental moisture causes structural degradation and shape loss in keratinous structures. Preventing water-induced fiber swelling maintains cosmetic integrity and structural durability.

Keratin fiber structural degradation

(4)evidences

Natural keratin fibers lack permanent shape retention and structural integrity under mechanical or environmental stress. Addressing this instability allows for durable aesthetic modification and resistance to degradation during washing.

Keratin fiber structural degradation

(3)evidences

Natural keratin fibers suffer from mechanical degradation and lack of shape retention. Establishing durable crosslinks prevents fiber breakage and maintains aesthetic integrity.