Title: Moisturizing units and moisturizing compositions containing the same

Abstract: Moisturizing units capable of moisturizing and improving flexibility, plasticity, and softness of keratinous matter, particularly mammalian skin, comprise liposomes, each having a matrix of a ternary lipid mixture of lecithin, dicetyl phosphate, and a sterol, and having cavities disposed within the liposome, the cavities containing a humectant such as sodium pyroglutamate, in an aqueous medium. The moisturizing liposomes function osmotically, serving as traps for water, which may be shared with the keratin constituents as required.

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Inventors: Oleniacz, Walter S. (Ringwood, NJ, US)

Application Number: 492369
Filing Date: 1974-07-29
Publication_date: 1976-05-18
Assignee: Lever Brothers Company (New York, NY)
Primary Class(es): 424/450 424/70.21, 424/70.22, 510/121, 510/122, 510/125, 510/158, 510/438, 510/468, 514/76
Other Classes:
US Patent Ref:

2756178	Jul, 1956	Verblen	424/70.
3235457	Feb, 1966	Laden	424/70.
3335053	Aug, 1967	Weitzel	424/365.
3471624	Oct, 1969	Youngblood	424/365.
3533955	Oct, 1970	Pader et al.	424/70.
3535427	Oct, 1970	Millar et al.	424/365.
3590123	Jun, 1971	Melloh et al.	424/70.
3660566	May, 1972	Vinson et al.	424/365.
3697644	Oct, 1972	Laiderman	424/70.
3835169	Sep, 1974	Kraft et al.	424/70.

Other Refs:
Primary Examiner: Rosen, Sam
Assistant Examiner: Clarke, Vera C.
Attorney: Dusyn; Kenneth F., Farrell; James J., Grant; Arnold