WO2004080432A1

WO2004080432A1 - Composition for lip cosmetics

Info

Publication number: WO2004080432A1
Application number: PCT/KR2004/000493
Authority: WO
Inventors: Songwoo Kim
Original assignee: Songwoo Kim
Priority date: 2003-03-10
Filing date: 2004-03-10
Publication date: 2004-09-23
Also published as: KR100588313B1; KR20040097115A

Abstract

The present invention provides cosmetic composition for lip comprising esculin, lactic acid and glycolic acid.

Description

[DESCRIPTION]

[TITLE]

COMPOSITION FOR LIP COSMETICS

[TECHNICAL FIELD]

The present invention relates to a composition for lip cosmetics, and

more particularly to a composition for lip cosmetics which can be used as a raw

material for lip cosmetics such as a lip cream, lip gloss, lipstick, etc.

[BACKGROUND ART]

Lips are the parts of a human's body which largely moves more than any

other parts, and they are significantly affected by environmental factors such as

the atmospheric condition or the weather condition because they are exposed to

the outside all the time. Especially, in terms of the structure of the lips, they don't

have any sebum layers unlike other general skin structures, and their horny

layers are extremely thin, so that the absolute amounts of the natural

moisturizing factor and water are insufficient and the evaporation of water goes

on very fast. Accordingly, the lip cosmetics, unlike other general cosmetics, need

to have the functions of maintaining the lip tissues to be resilient and healthy

and curing the lips and allowing them to recover when the skin of lips are

damaged.

Up to now, as the lip cosmetics which provide the functions, various

products such as a lipstick, lip gloss, lip cream, etc. have been developed, and

the lip gloss will be mainly described in connection with the present invention. The object of a lip gloss is generally to give a bight shine to the lips or

maintain them to be moist, and the composition of the lip gloss consists of

waxes to maintain the solid shape of them, various kinds of oil and pigments, etc.

In addition, ingredients of the ointment type such as polybutene, lanolin,

Vaseline, etc. are used to increase application properties and glossy properties

in use on lips.

In case of the lip gloss of a solid type, however, since alcohol or animal,

vegetable or mineral waxes functioning as an oily hardening agent for the

purpose of the properties of the product and the stability under high temperature

are used, there are defects that it is difficult to represent clear colors because

the lip gloss is not transparent but turbid, and the feeling in use is not smooth if a

lot of waxes are used. In addition, if waxes and oil are mixed and used, it is

liable to cause the separation phenomenon and the sweating phenomenon of oil

under high temperature, and the ingredient of the ointment type such as

polybutene gives the sticky feeling in use.

In order to solve the above problems, a composition for a lip gloss

(hereafter, referred to as "known composition 1") capable of representing clear

colors due to its excellent transparency and having excellent stability under high

temperature as well as giving excellent feeling without stickiness, including a

dextrin fatty acid ester and ester- or hydrocarbon-based liquid oil is disclosed in

Korea Patent Application Laying-open No. 2000-0044976.

Further, a composition for a lip gloss (hereafter, referred to as "known composition 2") having excellent stability under high temperature and excellent

transparency and glossy properties which last for a long time as well as giving

excellent feeling, including ester- or hydrocarbon-based liquid oil, polybutene,

phenyl dimethicone with a dextrin fatty acid ester being used as a main oil

stabilizer is disclosed in Korea Patent Application Laying-open No. 2001-

0046261.

In both the above known compositions 1 and 2, however, their function

of allowing the skin to recover and moisture retention is insufficient, and they

cannot make the lips themselves large. In addition, they are not greatly effective

to dry skin.

[DISCLOSURE OF INVENTION]

In order to solve the above problems, it is an object of the present

invention to provide a composition for lip cosmetics capable of promoting blood

supply to lips.

In addition, it is another object of the present invention to provide a

composition for lip cosmetics capable of allowing damaged lips to quickly

recover by promoting blood current and increasing the resilience of cells and

tissues so as to maintain natural and healthy lips.

In addition, it is further another object of the present invention to provide

a composition for lip cosmetics with an excellent gloss.

In addition, it is further another object of the present invention to provide

a composition for lip cosmetics with a moisture retention function so as to maintain moist and soft lips.

In addition, it is further another object of the present invention to provide

a composition for lip cosmetics capable of allowing damaged lips to quickly

recover.

In addition, it is further another object of the present invention to provide

a composition for lip cosmetics capable of preventing the skin of lips from aging

and having a recovery effect of the skin of lips.

In order to achieve the above objects, a composition for lip cosmetics

contains esculin and lactic acid. In addition, the composition may contain esculin,

lactic acid and glycolic acid.

[BRIEF DESCRIPTION OF DRAWINGS]

Fig. 1 is a picture of the lips of a first testee photographed before a

composition of this invention is applied.

Fig. 2 is a picture of the lips of the first testee photographed when a

predetermined time lapses after the composition of this invention is applied.

Fig. 3 is a picture of the lips of a second testee photographed before a

composition of this invention is applied.

Fig. 4 is a picture of the lips of the second testee photographed when a

predetermined time lapses after the composition of this invention is applied.

[BEST MODE FOR CARRYING OUT THE INVENTION]

Hereinafter, the present invention will now be described in detail.

It is known that esculin which is an effective ingredient of the present invention has the function of promoting blood current and increasing the

movement of capillary vessels. Accordingly, when a composition for lip

cosmetics containing esculin is applied to lips, blood supply to the lips is

improved, so that resilient lips are maintained, and the recovery of damaged lips

can be promoted. In addition, the lips appear to be clear because they become

large, so that beautiful lips can be maintained.

And lactic acid which is another effective ingredient of the present

invention is now generally produced with its raw material of starch or sugar by

the fermentation method. Since lactic acid is an antioxidative material and has

an excellent moisture retention function, it absorbs water in air. Therefore, when

a composition for lip cosmetics containing lactic acid is applied to lips, water in

the lips is sufficiently retained, so the lips can be prevented from aging, and it

also works in wrinkle prevention.

In addition, glycolic acid which is further another ingredient of the

present invention is a naturally produced material coming from a sugar cane,

and can be purchased commercially. Glycolic acid is relatively safe to a human's

body, and it works to revive the skin by synthesizing collagen as well as to

prevent skin aging. Its moisture retention effect is rather weaker than lactic acid,

and it promotes the lip's skin metabolism. Accordingly, when a composition for

lip cosmetics containing glycolic acid is applied to lips, the metabolism of the lips

is promoted, so that the skin cells of the lips are quickly revived, and the

recovery cycle can be short. The above effective ingredients are used being mixed with a base

material which mainly consists of polybutene and liquid paraffin.

Particularly, it is preferable that the composition of lip cosmetics

according to the present invention should contain esculin of approximately 0.2 to

1.5 wt% and lactic acid of approximately 1 to 5 wt% in the base material.

Moreover, if the composition further contains glycolic acid, it preferably

contains glycolic acid of approximately 0.5 to 5 wt%.

Meanwhile, the composition of this invention may further contain acetic

acid tocopherol and/or meadowfoam seed oil, whereby it has the additional

effect of maintaining the moist and soft skin for a long time by preventing the

skin from being horny or rough.

In addition, the composition of this invention may further contain

allantoin and/or linseed oil, whereby it has the additional effect of allowing

damaged lips to quickly recover by promoting blood current and increasing the

resilience of cells and tissues so as to maintain natural and healthy lips.

Hereafter, the present invention will be described in further detail by way

of examples, but the present invention is not limited to these examples.

Examples 1 to 3 and comparative examples 1 to 6: Production of

composition for cosmetics

Compositions were produced as follows in accordance with the

composition ratios present in Table 1. After the materials shown in Table 1 had been mixed well with a base material generally used, they were stirred under

normal temperature until they became completely even ointments.

Composition ratio (of ingredients except base material)

[Table 1]

(^*unit: wt%)

Experimental example 1: Evaluation of improvement effects on shape

and color of lips

The quality evaluation was performed in accordance with the following

criteria on the compositions produced by the example 1.

1. Effect of clearing the shape of lips: Apply the compositions to the

surfaces of lips uniformly and compare the degrees of clearness of the shapes

of lips when a predetermined time lapses before and after application.

2. Effect of clearing the color of lips: Apply the compositions to the

surfaces of lips uniformly and compare the degrees of clearness of the colors of

lips when a predetermined time lapses before and after application.

Here, Figs. 1 and 3 are pictures of the lips of first and second testees

photographed before the compositions of this invention are applied, and Figs. 2

and 4 are pictures of the lips of the first and second testees photographed when a predetermined time (e.g. approximately 30 minutes) lapses after the

compositions of this invention are applied.

Experimental example 2: Comparison of improvement effects on shape

and color of lips

The improvement effects on the shape and color of the lips by the

compositions produced according to the examples were measured and

compared. After one of the compositions of the examples 1 to 3 was applied to

the upper lip of a testee of each of 6 testee groups, which were randomly

organized from 40 women of 20s to 50s, whereas one of the compositions of the

comparative examples 1 to 6 was applied to the upper lip thereof, the degrees of

improvement of the shape and color of the lips were represented by a numerical

range of 0 (bad) to 5 (good) when 30 minutes lapsed, and then they were

averaged.

[Table 2]

As shown in Figs. 1 and 2 and Table 2, it was confirmed that the lips of

the testees when a predetermined time lapses after applied with the

compositions of this invention become large in volume and were clear in terms

of their outlines as blood supply to the lips increased. Accordingly, it is found that

the compositions of this invention have the excellent properties of making the shape and color of lips clear as lip cosmetics.

Experimental example 3: Measurement of moisture retention effect

The moisture retention effect of the compositions produced according to

the examples was measured. After one of the compositions of the examples 1 to

3 was applied to the upper lip of a testee of each of 6 testee groups, which were

randomly organized from 40 women of 20s to 50s, whereas one of the

compositions of the comparative examples 1 to 6 was applied to the upper lip

thereof, the degrees of moisture retention of the lips were represented by a

numerical range of 0 (dry) to 5 (moist) when 30 minutes lapsed, and then they

were averaged.

[Table 3]

As shown in Table 3, it is found that the compositions for lip cosmetics of

this invention are excellent in terms of the moisture retention effect on lips.

Although the present invention has been described by way of exemplary

embodiments, it should be understood that those skilled in the art might make

many changes and substitutions without departing from the spirit and the scope

of the present invention which is defined only by the appended claims.

[INDUSTRIAL APPLICABILITY]

According to present invention, it is possible to provide a composition for lip cosmetics capable of promoting blood supply to lips.

In addition, according to present invention, it is possible to allow

damaged lips to quickly recover by promoting blood current and increasing the

resilience of cells and tissues so as to maintain natural and healthy lips.

In addition, according to present invention, it is possible to maintain

glossy and beautiful lips due to the mixture of raw materials whose glossy

properties are excellent.

In addition, according to present invention, it is possible to prevent lips

from being rough so as to maintain moist and soft lips.

In addition, according to present invention, it is possible to make the

outline and color of lips clear, and to maintain lips to be soft and moist by

increasing moisture retention of lips.

In addition, according to present invention, it is possible to prevent lip

skins from aging and to prevent wrinkles of lips.

Claims

[CLAIMS]

1. A composition for lip cosmetics, comprising esculin, lactic acid, and

glycolic acid contained in a base material for said composition of a gel or cream

type.

2. A composition as claimed in claim 1 , wherein the content of said esculin

is substantially 0.5 to 1 wt%.

3. A composition as claimed in claim 1 , wherein the content of said lactic

acid is substantially 2 to 5 wt%.

4. A composition as claimed in claim 1 , wherein the content of said glycolic

acid is substantially 0.5 to 2 wt%.

5. A composition as claimed in claim 1 or 2, further comprising at least one

of substances including acetic acid tocopherol, meadowfoam seed oil, allantoin

and linseed oil.