JP2000119161A - Method for providing skin care preparation or daily life water with skin aging controlling or preventing effect - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin care preparation such as a cosmetic, soap, shampoo, body soap, antiperspirant, ultraviolet light control article for skin, medicine for skin application, bathing agent, etc., or daily life water such as water for bath, water for shower, water from a cleaner/water-adjusting tool, etc., with a skin aging controlling or preventing effect. SOLUTION: A skin care preparation or daily life water to be directly brought into contact with skin is provided with a reducing property having an ORP(oxidation-reduction potential based on standard hydrogen electrode and unit is V) of <=ORP=0.80-0.047 pH and equal to ORP of skin or lower than it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to cosmetics, soaps,
Aging of skin to skin care products such as shampoo, body soap, antiperspirant, UV control product for skin, medicine for skin application, bath salt, or daily water such as bath water, shower water and water from water purifier / purifier. (Aging) The present invention relates to a method for imparting an inhibitory or preventive effect.

[0002]

2. Description of the Related Art It has been already known that the pH of the skin is weakly acidic. For this reason, cosmetics and the like have been made to have a weak acidity similar to the pH of the skin in consideration of allergy and alleviation of skin irritation. But,
The oxidation-reduction potential of the skin (hereinafter referred to as ORP, which is based on a standard hydrogen electrode and has a unit of V) has not been omitted at all and has not been measured. Furthermore, it was not expected at all that ORP of the skin was related to skin aging.

[0003]

BACKGROUND OF THE INVENTION The present inventor has improved an electrode portion of an ORP measuring device for skin measurement,
The world's first ORP measurement of the skin was performed, and the relationship with pH was clarified. As a result, the ORP of the skin is the equilibrium ORP of water (ORP = 0.84-0.047pH)
The lower the difference between the equilibrium ORP and the ORP value of the skin, namely the aging index AI
(Δ) decreased with age. That is, it indicates that the condition of the skin is deeply related to water. The details are shown below.

FIG. 1 is a graph showing the relationship between the ORP of the skin (arm) and pH, and shows the results of measurement of a plurality of healthy subjects. In the figure, each line representing the relationship between ORP and pH is a boundary line at which water is oxidatively decomposed from above, and the middle broken line is ORP = 0.84-0.
An equilibrium line having a relationship of 047 pH is shown, and a lower line shows a boundary line at which water undergoes reductive decomposition. Therefore, water in a normal atmospheric environment exists in a region surrounded by upper and lower lines, and water in equilibrium with the atmospheric environment exists on a broken line. This balanced ORP
The line is the OR of various water and aqueous solutions that are normally in the atmospheric environment.
It indicates the equilibrium relationship obtained by measuring P and pH. If it is below this line, it indicates a reduction system, and if it is above this line, it indicates an oxidization system. Approaching and equilibrium is reached. FIG. 1 shows the relationship between the ORP and the pH of the skin of any healthy person (indicated by a circle in the figure).
The pH is about 4 or more and 7 or less, while the ORP is lower than the equilibrium ORP indicated by the broken line, and ORP = 0.80−
It shows that the compound exists in a range surrounded by 0.047 pH and ORP = 0.40-0.047 pH. That is,
The results in FIG. 1 indicate that the skin is weakly acidic and at the same time is a reducing system.

FIG. 2 shows an equilibrium ORP (ORP = 0.84).
The relationship between the aging index AI (Δ), which is the difference between the ORP value of the skin and the aging index AI (Δ), and the age is shown. As is clear from FIG. 2, the AI (Δ) value decreases as the age of each measurer indicated by ● (male) and ▲ (female) increases. In other words, the ORP of the skin is balanced with the aging.
, Indicating that skin aging is progressing.

FIG. 3 shows changes in the ORP of the skin before and after bathing in bath water having an ORP lower than that of the skin. ORP of the skin
Shows a decrease in ORP due to the quality of bathtub water immediately after bathing, but the ORP of the skin before bathing increases with time.
Return to Heretofore, it has been known that the pH of skin is already affected by the pH of bath water. But O
Regarding RP, the same result as that of pH was obtained. As a result, as a method of suppressing or preventing aging of the skin, it is necessary to devise a daily device that does not bring the ORP value of the skin close to the equilibrium ORP. Therefore, the skin comes into contact with a reduced skin care product having low ORP or water for daily use. It is considered that such consideration is an issue.

[0007] The present invention has been made to solve the above problems, and cosmetics, soap, shampoo,
Skin care products such as body soap, antiperspirant, UV control product for skin, medicine for skin application, bath salt, or bathtub water,
ORP = 0.80-0.047pH or less for domestic water such as shower water and water from a purifier / water purifier,
By using a reducing system that is equal to or less than the ORP of the skin, the increase in the ORP value of the skin is suppressed, and the aging (aging) of the skin is suppressed in skin care products or water for daily use in which the aging of the skin can be expected to be suppressed or prevented. Alternatively, it is intended to provide a method for imparting a preventive effect.

[0008]

SUMMARY OF THE INVENTION The present invention relates to a skin care product or living water which is in direct contact with the skin.
The above-mentioned problem has been solved by adopting a means of imparting a reducing property equal to or less than the ORP of the skin at P = 0.80-0.047 pH or less.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present inventors have clarified that the aging phenomenon due to skin aging can be evaluated by the aging index AI (Δ) based on the relationship between ORP and pH as described above. This means that the skin is gradually oxidized from the reduced state with age and shifts to an equilibrium system. From this, in order to suppress or prevent skin aging, skin care products or daily water that we come into daily contact with the skin are equivalent to the ORP of the skin,
Or, it is possible to provide a reducing property lower than that,
It is considered that the shift of P to the equilibrium system is suppressed.

[0010] Skin care products that come into daily contact with the skin include cosmetics, soaps, shampoos, body soaps, antiperspirants, ultraviolet ray control products for the skin, pharmaceuticals for skin application, bath salts, etc. There are a wide variety of bath water, shower water, and water from water purifiers, etc., especially women's daily cosmetics and their importance is great.
Provides a reducing property equal to or less than P. Also,
Antiperspirants and UV protection products for skin as UV countermeasures, as well as pharmaceuticals for skin application, which come into direct contact with the skin, add a substance that lowers ORP to these,
Provides a reducing property equal to or less than P.

[0011] For bathtub water, a substance that lowers ORP is added directly to bathtub water or to a bath additive, and for shower water, a showerhead is fitted with a substance that lowers ORP and is brought into contact with shower water. Alternatively, shower water is given a reducing property equal to or less than the ORP of the skin.

Alternatively, water or hot water can be electrochemically treated, for example, using cathodic water of electrolyzed water, and further adding hydrogen to give an ORP equal to or less than the ORP of the skin. it can. And these water or hot water can also remove the chlorine of tap water and is gentle on the skin.

[0013] The water of the purifier / water purifier is used for cleaning the face, tableware, food and the like in addition to beverages, because the hands and face etc. come into contact with the water.
By giving the water conditioner a reducing function, the water is given an ORP equal to or less than the ORP of the skin. As a method for providing the reducibility, OR
There are a method of bringing into contact with a reducing substance that lowers P, a method of using electrolyzed cathodic water, and a method of dissolving hydrogen in water.

As a result of various experiments, the present inventors have found that reducing substances that reduce ORP include inorganic reducing substances such as sodium sulfite and potassium pyrosulfite, organic reducing substances such as ascorbic acid and sodium ascorbate, and catechins. Various plant and herbal reductants such as polyphenols, flavonoids, lycopene, anthocyanins, xanthophylls, and reducing gases such as hydrogen were employed. That is, since all of the above-mentioned substances are substances having a reducing property, they can be employed in the present invention.

(Example 1) As a reducing agent, catechin and ascorbic acid were added to a commercially available lotion so as to have a concentration of 100 ppm. As a result, as shown in FIG. 4, the commercial lotion was almost neutral, and was in a slightly reduced state.
The skin shifted to the ORP and pH range indicated by the shaded area. Other cosmetics and soaps, shampoos, body soaps,
For skin care products such as antiperspirants, UV control products for skin, and medicines for skin application, the addition of reducing agents corresponding to each material, as well as lotions, results in an ORP equal to or less than the ORP of the skin. And by adjusting the pH, it becomes possible to obtain a skin care product that is in the ORP and pH range of the skin.

(Example 2) A conventional general commercially available inorganic bath agent (sodium sulfate 16 g, sodium hydrogen carbonate 10)
g, other components 4 g) in 30 g, ascorbic acid, sodium sulfite or catechin 2 as an example of a reducing substance.
g of the bath agent obtained at 40 ° C. and 200 l of tap water at 40 ° C.
FIG. 5 shows the results of the addition to the bathtub containing. In the case of a conventional bath additive to which no reducing agent is added, the equilibrium O
Although higher than RP, the bath additive containing these reducing substances resulted in bath water having an ORP = 0.80-0.047 pH or lower, and at the same time, chlorine in tap water used as bath water could be removed. Further, as a result of adding these acids such as succinic acid to these bath preparations and adjusting the pH, the ORP and p
Bath water in the H range (marked by ●) could be obtained. By adjusting the amount of reducing agent added to the bath agent, the OR of the skin
Bath agents having an ORP equal to or less than P are produced. Further, by adjusting the pH with an acid or an alkali, the bath is gentle to the skin and can be expected to have an effect of suppressing or preventing skin aging.

(Embodiment 3) FIG. 6 shows that tap water 20 at 40.degree.
The relationship between ORP and pH of bath water when hydrogen gas is dissolved in a bath containing 0 l is shown. O by chlorine in tap water
Bath water with high RP is ORP = 0.80-
The bath water became 0.047 pH or less, and at the same time, chlorine was removed. In addition, by adjusting the pH with the amount of dissolved hydrogen and the acid or alkali, the ORP of the skin and the ORP of the bath water or skin in the pH range are much lower than the ORP of the skin.
Water with any ORP and pH can be made, including not only bath water with RP, but also shower water. As a method for supplying hydrogen gas, supply from a gas cylinder, supply using a hydrogen storage alloy, supply using water electrolysis, and methanol or natural gas as used in fuel cells are used. Supply by decomposing with a catalyst, supply by using the decomposition of water using a photocatalyst, supply by using a chemical reaction such as the reaction between a metal and an acid or water, or reaction by using a microorganism Any of supply and the like, or a combination thereof may be used.

(Example 4) FIG. 7 shows the relationship between ORP and pH when cathodic water and anodic water generated using a commercially available purifier / purifier for alkaline ionized water are mixed at a fixed ratio. Show. As is clear from the figure, the ORP and the pH vary depending on the mixing ratio of the cathode water and the anode water, but ORP = 0.8.
Water of a reduction system having a pH of 0 to 0.047 pH or less is produced. One-on-one
Mixing produced water in the ORP and pH range. Therefore, water having an arbitrary ORP and pH can be produced by adjusting the flow rates of the cathode water and the anode water of these electrolyzed water generators. Further, the oxidizing active chlorine and active oxygen that increase the ORP generated in the anode water are removed with activated carbon, or these active substances are removed with a reducing agent, or decomposed or removed with a catalyst or the like, so that the anode water is removed. Is mixed with the cathode water, water having a lower ORP can be obtained. It is effective to use these waters not only as bath water and shower water, but also as other water that comes into direct contact with the skin. Of course, when used in a bath, the mixed water from the electrolyzed water generator can be circulated and used in a bath.

(Embodiment 5) In an electrolyzed water generator such as an alkali ion or oxidized water generator, hydrogen is generated on the cathode. Electrolysis with the addition of electrolytes such as sodium chloride and calcium lactate is more efficient. Therefore, hydrogen generation at the cathode is also efficient. Therefore, hydrogen generated by electrolysis can be separated from the cathode and used as the hydrogen source described in the third embodiment. Further, the pH adjusted water by optionally mixing the cathode water from which hydrogen was separated and the anode water shown in Example 3 or the anode water from which active chlorine and active oxygen had been removed,
By dissolving the hydrogen, water with a low ORP is produced.

In general, in an electrolyzed water generator such as an alkali ionized water or oxidized water generator, a diaphragm is used in an electrolytic cell to separate cathode water and anode water. However, reduction water can be produced even by a diaphragmless electrolysis method in which the diaphragm is removed.
In particular, in a non-diaphragm electrolysis method using carbon as an electrode, more effective water of a reduction system is produced. Further, by passing activated carbon or a reducing agent, or a catalyst for decomposing active chlorine and active oxygen through these waters of the reduction system, water of a reliable reduction system can be obtained. FIG. 8 shows the results of bath water when the bath water was circulated in the non-diaphragm electrolyzed water generator for 30 minutes while changing the flow rate and the like. In each case, water of reduction system was produced. In this manner, the water from the non-diaphragm electrolyzed water generator can be circulated and used with the bathtub.

[0021]

Since the present invention is as described above, the skin ages with aging, and the reduced skin becomes oxidized and approaches an equilibrium system. , Having an effect equal to or less than the ORP of the skin, has an effect of suppressing or preventing aging of the skin. Further, since it is a reducing system, it is effective for active oxygen related to skin damage and aging, and for health and beauty. In addition, when tap water is used as bath water and shower water, by making these waters a reducing system with a low ORP, chlorine in the tap water can be removed, which is gentle on the skin and suppresses skin aging. Or water that can be expected to prevent.

[Brief description of the drawings]

FIG. 1 is a diagram showing a relationship between ORP and pH of human skin (arm).

FIG. 2 is a diagram showing the relationship between skin aging index (aging) AI (Δ) and age.

FIG. 3 is a diagram showing the relationship between the ORP and pH of the skin exerted by the quality of bath water.

FIG. 4 is a diagram showing the relationship between the ORP and the pH of a conventional lotion when the ORP and the pH are adjusted.

FIG. 5: ORP and pH using a conventional commercially available inorganic bath agent
It is a figure which shows the relationship of ORP of bathtub water and pH when adjusting.

FIG. 6 is a diagram showing a relationship between ORP and pH of bath water due to dissolution of hydrogen.

FIG. 7 is a diagram showing a relationship between a mixing ratio when mixing cathodic water and anodic water generated by an electrolyzed water generating apparatus, ORP of mixed water, and pH.

FIG. 8 is a diagram showing the relationship between bathtub water ORP and pH when bathtub water is circulated for 30 minutes using a non-diaphragm electrolyzed water generator.

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Claims (2)

[Claims] 1. An ORP of ORP = 0.80-0.047p for skin care products or water for daily use which comes into direct contact with the skin.
A method for imparting a skin aging (or aging) inhibiting or preventing effect to skin care products or water for daily use, characterized by imparting a reducing property equal to or less than ORP of the skin at H or less. 2. A substance imparting a reducing property equal to or less than the ORP of the skin is an inorganic reducing substance such as sodium sulfite or potassium pyrosulfite, an organic reducing substance such as ascorbic acid or sodium ascorbate, or catechin. Kind,
2. A skin care product according to claim 1, which is a reducing gas such as polyphenols, flavonoids, lycopene, anthocyanins, xanthophylls, or a reducing agent such as hydrogen, or hydrogen, or the like. How to give an effect.