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Application of internal wool lipids to hair.

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Authors:

Mndez, Sandra1 smeesl@iiqab.csic.esBarba, Clara1

Lanzilotta, Alisa Roddick2

Kelly, Rob3

Parra, Jose Lus1

Coderch, Lusa1

Source:

Skin Research & Technology; Nov2008, Vol. 14 Issue 4, p448-453, 6p, 5 charts, 1

diagram

Document Type:

Article

Subject Terms:

*LIPIDS

*HAIR

*CELLS

*TISSUES

*LIPOSOMES*CUTICLE

Author-Supplied Keywords:

differential scanning calorimetry

hair

lipids

mechanical properties

Abstract:

Purpose: Hair lipids can contribute to physicochemical phenomena such as diffusion,

cell cohesion and mechanical strength, although lipids occur at much lower levels (1

6% dry weight) than proteins (>90%).Hair lipids can be diminished by hairwashing

and submission to chemical treatments. Studies have shown that internal wool lipids(IWL) resemble those membranes of other keratinic tissues such as humanhairor

stratum corneum. Results: In this work, the IWL, in the form of liposomes or from an

emulsion system, were applied to untreated hair fibres and also treated hair fibres.

The results showed that application of IWL to pretreated hairsamples lead to an

improvement in mechanical strength properties of the fibres when the IWL were

applied structured as liposomes. Differential scanning calorimetry studies

demonstrated that the application of IWL to pretreated hairsample led to a slight

increase in the crystalline material of the fibres. Moreover, scanning electron

microscopy studies showed that application of IWL liposomes to damaged hair fibres

lead to an improvement of the cuticle scale, demonstrating the importance of the use

of a delivery vehicle with a bilayer structure similar to the one present in the hair fibre

to restore the natural properties of the fibre. [ABSTRACT FROM AUTHOR]

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Author Affiliations:1IIQAB (CSIC), Barcelona, Spain2AgreSearch Limited, Christchurch, New Zealand3Keratec Limited, Canterbury, New Zealand

ISSN:

0909752X

DOI:

10.1111/j.1600-0846.2008.00311.x

Accession Number:34714939

Database:

Academic Search Premier

Publisher Logo:

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