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GlossaryHydrophobicity

property of repelling water

Hydrophobicity refers to the property of a molecule or surface that repels water. In simpler terms, it means that the substance does not mix with or absorb water, much like how oil behaves when it is in contact with water. This characteristic is crucial in various biological processes, such as the formation of cell membranes, where hydrophobic lipid tails face inward, away from water, creating a barrier that protects the cell.

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research Deposition of 18-MEA onto Damaged Hair to Form a Persistent Hydrophobicity

January 2011 in “Journal of Society of Cosmetic Chemists of Japan”

18-MEA and SPDA can restore damaged hair's smoothness and reduce frizz.

research ToF-SIMS Characterization of the Lipid Layer on the Hair Surface: Effect of the 18-MEA Lipid Layer on Surface Hydrophobicity

19 citations, May 2010 in “Surface and interface analysis”

18-MEA is essential for hair's water resistance, and a conditioner with 18-MEA and SPDA can restore it.

research Degradation of Hair Surface: Importance of 18-MEA and Epicuticle

25 citations, May 2019 in “Cosmetics”

18-MEA and cationic surfactants can restore and maintain hair's hydrophobic nature, improving its beauty and feel.

research Exogenous and Endogenous Lipids of Human Hair

21 citations, March 2017 in “Skin research and technology”

Removing external lipids from hair reduces moisture and increases strength, while removing internal lipids decreases water permeability.

research Incubatory Environment of the Scalp Impacts Pre-Emergent Hair to Affect Post-Emergent Hair Cuticle Integrity

16 citations, May 2017 in “Journal of cosmetic dermatology”

An unhealthy scalp can damage new hair, but using ZPT shampoo can improve hair health.

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community Peptides that Stop Hair Loss? | In-depth Literature Review Video

in Research/Science 71 upvotes 4 months ago

Peptides like TB500, KPV, GHK-CU, and BPC-157 are overhyped for hair growth with limited proven effectiveness in humans. Combining peptides with delivery methods like iontophoresis and sonophoresis shows promise, but many claims remain unproven.