(19) Japan Patent Office (JP)
(12) Japanese Unexamined
(11) Japanese Unexamined Patent
Application Publication Number
(51) Int. CI.
JPO file numbers
(43) Publication date
(22) DATE OF APPLICATION
(Total 4 pages)
NOGEYAMA MANSIONS IE
29 OIMATSU-CHO, NISHI-KU,
SHISEIDO CO., LTD.
5-5 GINZA 7-CHOME, CHUO-KU,
1. NAME OF INVENTION
2. SCOPE OF PATENT CLAIMS
A cosmetic comprised by blending one or two or more compounds selected from a group comprising amino
sugars, N-acetylamino sugars, and salts thereof.
3 . DETAILED DESCRIPTION OF THE INVENTION
The present invention is characterized in that an amino acid obtained by decomposing a natural polysaccharide,
mucopolysaccharide, or glycoprotein by an acid, base, enzyme, or other such means is blended as a cosmetic
component, and the present invention offers a novel cosmetic which provides smoothness and a moist feeling to the
skin and increases effects of gloss and finish on the hair.
Conventionally, various ingredients extracted from natural materials, for example, proteins, polysaccharides,
extracts, natural polymers, and other such substances have been used frequently in cosmetics for their distinctive
effects in use. Monomers or oligomers that structure these substances, for example, amino acids, peptides, and the
like, have also been used for similar purposes.
In light of the foregoing background, the present inventors completed the present invention as a result of
repeated and painstaking research intended to obtain natural ingredients useful for the skin and hair and the like; by
focusing on N-acetyl-D-glucosamine and D-glucosamine that are structural units of structural polysaccharides found
in the exoskeletons of insects and crustaceans, as well as N-acetyl-galactosamine and D-galactosamine and the like
that are structural units of polysaccharides, glycoproteins, and glycolipids in vertebrate animals; and by blending
such substances into cosmetic bases.
Specifically, the present invention is a cosmetic comprised by blending one or two or more compounds selected
from a group comprising amino sugars, N-acetylamino sugars, and salts thereof.
The amino sugars, N-acetylamino sugars, and salts thereof used in the present invention are monosaccharides or
polyalcohols or derivatives thereof which have an amino group in their molecule and are obtained by decomposing,
by an acid, base, enzyme, or other such means, chitin in the exoskeletons of insects or in those of crabs or other
crustaceans, or by similarly decomposing polysaccharides, particularly mucopolysaccharides, glycoproteins,
glycolipids, or other such natural polymers in animals or plants; examples include N-acetyl-D-glucosamine, N-
acetyl-D-galactosamine, D-glucosamine, D-galactosamine, and hydrochlorides and sulfates thereof.
Japanese Unexamined Patent Application Publication S59-13708 (2)
The amino sugars, N-acetylamino sugars, and salts thereof noted above include di- and triamino sugars in
addition to monoamino sugars.
Amino sugars, N-acetylamino sugars, or salts thereof in the present invention are compounded in a cosmetic at
a level of 0.001-30 wt%, and a level on the order of 0.1-5.0 wt% is desirable for demonstrating the effect of the
present invention and also having no stickiness or other such adverse effects in the form of a cosmetic.
Other than the above-noted essential components, ingredients compounded in the cosmetic pertaining to the
present invention may include oils, water, surfactants, moisture retainers, alcohols, thickeners, fragrances,
antioxidants, chelating agents, pigments, preservatives, and other such ingredients used in a typical cosmetic.
The cosmetic pertaining to the present invention has a smooth feel, moisture-retaining effect, softening effect,
and activating effect on the skin and imparts resilience and gloss to the skin. Said cosmetic also has a moisture-
retaining effect and softening effect on the hair, imparts gloss to the hair, and improves combing properties.
(Remainder of page blank)
Japanese Unexamined Patent Application Publication S59-13708 (3)
The effect of the present invention is next described in detail by way of preferred embodiments and
comparative embodiments. The present invention is not limited thereby. In the embodiments, % indicates weight
PREFERRED EMBODIMENT 1 Facial Lotion
POE (15 mol) oleyl alcohol ether
Ultraviolet light absorber
Pigment As needed
Ion exchange water
Ingredients (5), (6), (9), and (10) were dissolved by blending at ambient temperature and were then added by
stirring into ingredients (1), (2), (3), (4), (7), (8), (1 1), and (12) dissolved by blending in similar fashion, and a facial
lotion was obtained.
COMPARATIVE EMBODIMENT 1
A facial lotion was obtained by a manufacturing method similar to that in Preferred Embodiment 1, entirely by
the same formula as in Preferred Embodiment 1, with the exception that Ingredient (7), D-glucosamine
hydrochloride, was omitted from Preferred Embodiment 1 .
The evaporation rates of Preferred Embodiment 1 and Comparative Embodiment 1 were determined by the test
method described below. Samples of 0.2 cc were placed on a lxl cm filter paper, the amount of moisture
evaporating under conditions of 25°C and 50% relative humidity was measured, and evaporation rates were
determined by dividing these amounts by time. Table 1 presents the results.
Preferred Embodiment 1
Comparative Embodiment 1
| Evaporation rate
As shown in Table 1 , Preferred Embodiment 1 , in which 1 % amino sugar had been blended, demonstrated a slower
evaporation rate and higher moisture retention.
ERRED EMBODIMENT 2 O/V
Glycyrrhizin ammonium salt
POE (25 mol) cetyl alcohol ether
Japanese Unexamined Patent Application Publication S59-13708 (4)
(15) Ion exchange water 76.55
Ingredients (5)-(14) were dissolved by blending at 70°C and were then emulsified by stirring and dissolving
into ingredients (1), (2), (3), (4), and (15) dissolved by blending in similar fashion. Emulsified particles were
prepared with a homogenizer, and a cream was then obtained by cooling the material to ambient temperature with
PREFERRED EMBODIMENT 3 Pack
Ion exchange water
A pack was obtained by blending and dissolving ingredients (4)-(7) at ambient temperature, stirring and adding
these ingredients into ingredients (1), (2), (3), and (8) dissolved by blending at 80°C, and then cooling the material
to ambient temperature.
PREFERRED EMBODIMENT 4 Lipstick
N-acetyl -D-gl ucosamin e
Pigment (coloring agent)
A stick-form lipstick was obtained by dissolving and blending ingredients (l)-(9) at 80°C, pouring these
ingredients into a mold and cooling to ambient temperature, and then removing the material from the mold.
PREFERRED EMBODIMENT 5 Hair Rinse
(1) Alkyltrimethylammonium chloride 3.0%
(2) Cetyl alcohol 1.0
(3) D-glucosamine hydrochloride 2.0
(4) Preservative 0.1
(5) Glycerin 5.0
(6) Fragrance 0.3
(7) Coloring As needed
(8) Ion exchange water 88.0
(9) POE (8 mol) stearyl alcohol ether 0.6
A hair rinse was obtained by heating, stirring, and dissolving ingredients (l)-(9) at 70°C and then cooling the
material to ambient temperature with a heat exchanger.
Japanese Unexamined Patent Application Publication S59-13708 (5)
COMPARATIVE EMBODIMENT 2
A hair rinse was obtained by a manufacturing method similar to that in Preferred Embodiment 5, by the same
formula as in Preferred Embodiment 5, with the exception that ingredient (3), D-glucosamine hydrochloride, was
Practical usage testing of Preferred Embodiment 5 and Comparative Embodiment 2 was carried out by a 20-
person panel of females age 20-30 who evaluated hair gloss and combing properties. The results demonstrated the
effect of the hair rinse pertaining to the present invention, with 1 9 individuals stating that Preferred Embodiment 5
was good, and 1 individual stating that Comparative Embodiment 2 was good.
PREFERRED EMBODIMENT 6 Hair Tonic
(1) Ethanol(95%) 50.0%
(2) Glycerin 1.0
(3) POE (60 mol) hardened castor oil ether 1.0
(4) Fragrance 0.5
(5) N-acetyl-D-glucosamine 0.005
(6) Hinokitiol 0.005
(7) Ion exchange water 47.490
A hair tonic was obtained by stirring and dissolving ingredients (1) and (3)-(6) at ambient temperature, and
adding ingredients (2) and (7) thereto while stirring.
PREFERRED EMBODIMENT 7 Cream-Form Cleansing Material
Ion exchange water
Ingredients (13) and (l)-(6) were dissolved by heating and stirring at 70°C and were then added and stirred into
ingredients (7)-(12) which had been dissolved by blending in similar fashion. The material was homogenized then
cooled to ambient temperature with a heat exchanger, and a cleansing cream was obtained.
COMPARATIVE EMBODIMENT 3
A cream-form cleansing material was obtained by a manufacturing method similar to that in Preferred
Embodiment 7, by the same formula as in Preferred Embodiment 7, with the exception that ingredients (1 1) and (12)
were omitted, and ingredient (10), sodium hydroxide, was set at 5.0%.
Practical usage testing of Preferred Embodiment 7 and Comparative Embodiment 3 was carried out by a 20-
person panel of females age 20-40 who evaluated foundation and other makeup removal characteristics and feel
after use. In the results, the evaluation of all 20 participants was that the delipidation strength of Preferred
Embodiment 7 was mild, there was no tightening of skin, and there was a suitable cleansing effect.
PATENT APPLICANT SHISEIDO CO., LTD.