Research on Hair Split End Mechanisms and Prevention

Hair care composition containing a mixture of natural plants as an active ingredient to promote hair growth, prevent hair loss, moisturize hair, reduce static, prevent splitting, and fight dandruff bacteria. The mixture includes horsetail, nettle, pumpkin seed, tomato, sorghum, flaxseed, centella asiatica, and rosemary extracts or ferments. The plants are extracted or fermented and used in concentrations of 0.5-10% in hair products like shampoo, conditioner, gel, spray, etc.

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A method for repairing and preventing split ends in hair by using a specific composition applied to wet hair. The composition contains N-acyl amino acid amides dissolved or dispersed in an oily carrier. The N-acyl amino acid amides are derived from amino acids like glutamic acid and fatty acids like lauroic acid. The composition is applied to wet hair, which helps the ingredients penetrate and repair the damaged hair shaft.

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Damage prevention and improvement for hair using a specific constituent, gamma-polyglutamic acid or its salt, in hair products like shampoo, conditioner, and treatments. This acid is found in bacteria and helps prevent hair damage from factors like UV, pollution, and chemical treatments. Adding gamma-polyglutamic acid or its salt to hair products can prevent hair damage and improve hair quality.

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Hair treatment emulsion containing lipid-soluble and water-soluble split-end reducing agents to effectively repair split ends in damaged hair. The oil-in-water emulsion contains a lipid-soluble ester alcohol or ester polyol derived from epoxy fatty acid esters and a water-soluble compound like panthenol, nicotinic acid amide, sugar, polyvinyl pyrrolidone, or mixtures. The lipid-soluble split-end reducers penetrate the hair shaft to repair damage, while the water-soluble split-end reducers treat the hair surface.

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Hair conditioner composition that repairs split ends and improves volume. The composition is an oil-in-water emulsion containing a cationic hair conditioner, water-insoluble styling polymer, and solvent blended with higher alcohols/fatty alcohol ethoxylates. The emulsion repairs split ends by depositing polymer on the hair when rinsed, joining the ends together. The conditioner also improves volume by blending quats and polymers. The solvent helps stabilize the emulsion and allows quats/polymers to form a water-insoluble complex.

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A hair treatment composition that provides sustained conditioning, moisturization, damage reduction, split end prevention, and shine enhancement to hair. The composition contains a keratin-reducing substance to temporarily modify the hair structure and a nonionic amphiphatic compound with long-chain branched alkyl/alkenyl groups and an HLB of 2-12. This compound or mixture forms a liquid crystalline structure at room temperature. The keratin-reducing substance temporarily alters hair properties while the liquid crystalline compound sustains the conditioning effects.

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