JP7282348B2 - Foam booster and shampoo composition - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act Name of meeting: The 55th Annual Meeting of the Japan Oil Chemistry Society Date: September 7-9, 2016 Venue: Nara Women's University (Kitauoya Nishimachi, Nara City, Nara Prefecture)

The present invention relates to a foaming accelerator, and more specifically, by adding it to a surfactant that serves as a base material, it has excellent slipperiness so that the hair does not get tangled when washing the hair in a sufficiently foamed state, and the hair becomes smooth when rinsing the foam. The present invention relates to a foaming accelerator that improves smooth finger-combination properties, improves hair feeling when shampooing, and improves the foaming properties of surfactants.

In recent years, people have come to enjoy hairstyles and hair colors as fashion, and hair coloring and perming have become commonplace. Hair is damaged by hair coloring, perming, etc. When shampooing, the hair becomes tangled, and when rinsing the foam, it becomes difficult to pass through the fingers and it feels squeaky, which causes breakage and further damage to the hair surface. problems have arisen. For this reason, in addition to the original purpose of cleansing, the shampoo foams smoothly, and when the foam is rinsed off, it can be easily combed through the hair. is required.

Conventionally, as a method for improving good finger-combability of hair when washing hair in a sufficiently foamed state or when rinsing the foam, cationized cellulose, Combining cationized galactomannan-based polymers such as cationized guar gum, cationized tara gum, and cationized locust bean gum, or cationic polymers such as dimethyldiallylammonium chloride-acrylamide copolymers (for example, Patent Documents 1 to 6 ) are widely used.

However, although the cationic polymer improves slipperiness as an agent, it does not necessarily give a feeling of elasticity (creaminess) or thickness of the foam when the detergent composition is foamed, and is suitable as a detergent composition. It was nothing. In addition, cationic polymers may cause skin irritation depending on the blending amount, which raises concerns about safety.

On the other hand, the acylhydroxyethyl-β-alanine salt, as an amino acid-based surfactant, itself has high detergency/foaming properties, resistance to hard water, and low irritation (see, for example, Patent Documents 7 and 8). )It has been known. However, by blending an acylhydroxyethyl-β-alanine salt in combination with a specific surfactant, the foaming property of the surfactant serving as the base material is improved, and when the hair is sufficiently foamed, It was not known that it would be possible to provide an excellent feeling in use when rinsing the foam.

JP-A-11-263715 JP-A-2002-029939 Japanese Unexamined Patent Application Publication No. 2002-348218 JP 2005-272658 A JP 2006-28095 A JP-A-10-007536 JP-A-01-090295 JP-A-01-093566

The present invention has been made in view of the above-mentioned background art, and by adding it to a surfactant that is a base material, it has excellent slipperiness so that the hair does not get tangled when washing the hair in a sufficiently foamed state. To provide a foaming promoter capable of improving hair feeling in shampooing by improving finger-combability without dryness and improving the foaming property of a surfactant.

As a result of intensive research to achieve the object of the present invention, the present inventors have found that by adding an acylhydroxyethyl-β-alanine salt to a surfactant, the foaming property of the surfactant is improved and , when the hair is sufficiently foamed, the hair does not get tangled when washed, and when the foam is rinsed, the hair does not creak and the finger combability is improved. Completed.

A first invention is a foaming promoter characterized by containing an acylhydroxyethyl-β-alanine salt represented by the following general formula (1) as an active ingredient.

（式（１）中、ＲＣＯは炭素数８～１４の飽和脂肪酸残基を示し、Ｍはアルカリ金属原子、アルカノールアミン、アンモニウムを示す。）

(In formula (1), RCO represents a saturated fatty acid residue having 8 to 14 carbon atoms, and M represents an alkali metal atom, alkanolamine, or ammonium.)

The second invention is the foaming accelerator according to the first invention, characterized by having an effect of improving the feel of hair when shampooing in a sufficiently foamed state and when rinsing the foam.

A third invention is the foaming accelerator according to the first invention or the second invention, wherein the acylhydroxyethyl-β-alanine salt is lauroylhydroxyethyl-β-alanine Na.

A fourth invention is a detergent composition characterized by containing the following components (A) to (B).
(A) The foaming accelerator according to any one of the first to third inventions (B) One or more selected from anionic surfactants or amphoteric surfactants

A fifth invention is the detergent composition according to the fourth invention, which is a shampoo composition.

A sixth invention is characterized in that (B) is an amidobetaine-type amphoteric surfactant, an imidazolium betaine-type amphoteric surfactant, or an amino acid-based anionic surfactant. A cleaning composition according to the invention.

A seventh invention is characterized in that the compounding ratio of component (A) and component (B) is (A) / (B) = 0.2 to 8.0. A cleaning composition according to any one of the inventions.

According to the foaming accelerator of the present invention, by adding it to a shampoo composition, it has excellent slipperiness so that the hair does not get tangled when washing the hair in a sufficiently foamed state, and it has excellent finger-combability so that the hair does not break when rinsing the foam. It is possible to provide a shampoo composition having high foamability while having good foaming properties.

The foam accelerator will be described in detail below.

The acylhydroxyethyl-β-alanine salt used in the present invention is a compound represented by the formula (1), and may be one that is commonly used as a raw material for cosmetics. The manufacturing method is not particularly limited.

（式（１）中、ＲＣＯは炭素数８～１４の飽和脂肪酸残基を示し、Ｍはアルカリ金属原子、アルカノールアミン、アンモニウムを示す。）

(In formula (1), RCO represents a saturated fatty acid residue having 8 to 14 carbon atoms, and M represents an alkali metal atom, alkanolamine, or ammonium.)

In the foaming promoter of the present invention, the saturated fatty acid residue of RCO has 8 to 14 carbon atoms, preferably 10 to 12 carbon atoms. Even if it is less than 8 or more than 14, the foaming power is lowered.
The counterion is also an alkali metal atom, ammonium or alkanolamine, preferably an alkali metal atom.

The foaming promoter of the present invention exhibits its effect when added to a surfactant. In this case, the surfactant that serves as the base material may be any surfactant that is usually used in hair cleansers, preferably an anionic surfactant or an amphoteric surfactant, and an amphoteric surfactant. Amidobetaine-type amphoteric surfactants or imidazolium betaine-type amphoteric surfactants are preferred, and amino acid-based anionic surfactants are particularly preferred among anionic surfactants. Further, the surfactant that serves as the base material may be used alone or in combination of two or more.

When the foaming promoter of the present invention is added to the detergent composition, the mixing ratio of the foaming promoter (A) and the base surfactant (B) is (A)/(B)=0. It is preferably in the range of 0.2 to 8.0. When the ratio (A)/(B) is less than 0.2, foaming of the cleansing composition is poor, and when it exceeds 8.0, finger combability is poor when shampooing with sufficient foam or when rinsing the foam. A decrease in operability such as becoming

Examples of the amphoteric surfactant include a betaine amphoteric surfactant and an imidazolinium betaine surfactant. Examples of betaine-type amphoteric surfactants include lauryl betaine, lauramidopropyl betaine, 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine, coconut oil fatty acid amidopropyl betaine, palm kernel oil fatty acid amidopropyl betaine. Betaine and the like can be mentioned, and alkylamidopropyl betaine type amphoteric surfactants such as lauramidopropyl betaine, coconut oil fatty acid amidopropyl betaine, and palm kernel oil fatty acid amidopropyl betaine are preferred. Examples of imidazolinium betaine surfactants include 2-alkyl-N-carboxymethyl-N-hydroxyethylimidazonium betaine, coconut oil fatty acid amidopropyl betaine, coconut oil alkyl N-carboxyethyl-N-hydroxyethylimidazoline. nium betaine and the like. Sodium laurylaminodiacetate, sodium β-aminopropionate, N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine sodium. Betaine-type amphoteric surfactants and imidazolinium betaine-type surfactants are preferred. In the present invention, these betaine-type amphoteric surfactants and imidazolinium betaine-type amphoteric surfactants can be appropriately selected and blended singly or in combination of two or more.

Examples of the anionic surfactant include various fatty acid salts such as potassium laurate and sodium myristate, palm kernel oil fatty acid triethanolamine, sodium α-lauroylsulfonate, sodium myristoyl allylsulfonate, sodium laurylnaphthalenesulfonate, Triethanolamine lauryl sulfate, ammonium lauryl sulfate, sodium lauryl ether sulfate, sodium polyoxyethylene lauryl ether sulfate (3E.O.), potassium polyoxyethylene coconut oil fatty acid amide ether sulfate, sodium lauryl phosphate, sodium lauroyl methyltaurate, palmimine Potassium Cocoate, Potassium Cocoate, Potassium N-Cocoate Glutamate, Cocoate Monoethanolamide, Disodium Lauryl Sulfosuccinate, Sodium Polyoxyethylene Lauryl Ether Acetate (4.5 E.O), Lauryl Benzene Sulfonate, N-acylamino acid salts and the like, and further examples of N-acylamino acid salts include N-lauroylsarcosine triethanolamine, N-myristoylsarcosine triethanolamine, N-lauroylsarcosine sodium, N-myristoylsarcosine sodium, N- Coconut fatty acid sarcosine triethanolamine, N-coconut fatty acid sodium sarcosine, N-lauroyl-N-methyl-β-alanine sodium, N-lauroyl-N-methyl-β-alanine triethanolamine, N-myristoyl-N- Sodium methyl-β-alanine, sodium N-coconut fatty acid-N-methyl-β-alanine, triethanolamine N-lauroyl glutamate, sodium N-lauroyl glutamate, triethanolamine N-coconut fatty acid glutamate, N-coconut oil Fatty acid sodium glutamate etc. are mentioned. In the present invention, these anionic surfactants can be appropriately selected and blended singly or in combination of two or more.

The foaming promoter of the present invention is preferably added to a detergent composition, and the detergent composition to which the foaming promoter of the present invention is added can be solid, powder, liquid, gel or cream. , aerosol, foam, and the like.

The detergent composition containing the foaming promoter of the present invention can contain known components as appropriate within a range that does not impair the effect of the foaming promoter. Known ingredients include fatty acid glycerin esters, sorbitan fatty acid esters, sucrose fatty acid esters, polyglycerin fatty acid esters, propylene glycol fatty acid esters, pentaerythritol fatty acid esters, monoglyceride derivatives, higher alcohol ethylene oxide adducts, and polyoxyethylene alkyl allyl ethers. , polyoxyethylene lanolin alcohol, ethylene oxide derivative of alkylphenol formalin condensate, pluronic surfactant, polyoxyethylene alkylthioether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene glycerin mono fatty acid ester, polyoxyethylene propylene glycol mono fatty acid Esters, polyoxyethylene sorbitol fatty acid esters, polyoxyethylene castor oil, hydrogenated castor oil derivatives, polyoxyethylene lanolin derivatives, block polymers containing aliphatic alkyl groups, polyoxyethylene fatty acid amides, polyoxyethylene alkylamines, alkylamine oxides , nonionic surfactants represented by alkylpolyglucosides, alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, fatty acid amide amine salts, ethyl sulfate lanolin fatty acid aminopropylethyldimethylammonium, dicocoylethyl hydroxyethylmonium methosulfate, stearoxypropyl Cationic surfactants typified by dimethylamine, stearoxypropyltrimonium chloride, stearyl PG dimethylamine, stearyl PG trimonium chloride, and behenyl PG trimonium chloride can be mentioned.

In addition, avocado oil, almond oil, olive oil, grape seed oil, rice bran oil, rice germ oil, evening primrose oil, camellia oil, sasanqua oil, macadamia nut oil, medfoam oil, rosehip oil, shea butter, egg yolk oil, horse fat, etc. Fats and oils, jojoba oil, carnauba wax, candelilla wax, lanolin, beeswax and other waxes, ozokerite, liquid paraffin, squalene, vaseline and other hydrocarbons, isostearyl alcohol, octyldodecanol, lanolin alcohol, phytosterol, cetanol, oleyl Higher alcohols such as alcohol, isopropyl myristate, ethyl oleate, octyl stearate, cetyl 2-ethylhexanoate, isononyl isononanoate, octyl palmitate, ethylene glycol dioleate, glyceryl triisostearate, cetyl lactate, diisopropyl adipate , ester oils such as cholesteryl isostearate, polyhydric alcohols such as propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol, glycerin, glycosyltrehalose, diglycerin, isoprene glycol, 1,3-butylene glycol, ethyl alcohol, Lower alcohols such as isopropanol, natural polymers such as xanthan gum, guar gum and starch and their derivatives, cellulose polymers such as hydroxypropylmethyl cellulose, hydroxyethyl cellulose and methyl cellulose, synthetic polymers such as carboxyvinyl polymer and polyvinylpyrrolidone, distearic acid Pearlizing agents such as ethylene glycol and triethylene glycol distearate, kaolin, silicic anhydride, magnesium aluminum silicate, talc, mica, cellulose powder, silk powder, starch, polyethylene powder, nylon powder, pigments such as crosslinked polystyrene, preservatives agents, sequestering agents, propellants, inorganic salts, organic acids and their salts, pyrrolidone carboxylic acid and its salts, hyaluronic acid and its salts, sugars such as sorbitol, maltitol and trehalose, moisturizing agents such as trimethylglycine, chloride Bactericides such as benzalkonium, benzethonium chloride, isopropylmethylphenol, piroctone olamine, clara extract, zinc pyrithione, hinokitiol, etc., jersey extract, capronium chloride, cepharanthine, salicylic acid, inosit, garlic iodide extract, resorcinol, estradiol, Ethinylestradiol, oxendrone, pantothenic acid and its derivatives, placenta extract, biotin, mononitroguaiacol, photosensitizer 301, bovine hematin, dipotassium glycyrrhizinate, pyridoxine hydrochloride, cooling agent, warming agent, animal and plant extracts, vitamins, ultraviolet absorbers , amino acids and their derivatives, proteins and their derivatives, antioxidants, colorants, fragrances and the like.

EXAMPLES Next, the detergent composition of the present invention will be described in detail with reference to examples, but the present invention is not limited to these. First, test methods and evaluation methods employed in each example will be described.

(1) Foaming power test 1
50 mL of the prepared 1% aqueous solution of the surfactant composition or detergent composition was placed in a cylindrical cylinder with a stirrer in a 1000 mL container, stirred at 5000 rpm for 10 seconds, and then the foam volume (mL) was measured.

(2) Foaming power test 2
50 mL of the prepared 1% aqueous solution of the surfactant composition or detergent composition was placed in a cylindrical cylinder with a stirrer in a 1000 mL container, stirred at 5000 rpm for 60 seconds, and then the foam volume (mL) was measured.

(3) Foam Elasticity Test 3 g of a 1% aqueous solution of the detergent composition was foamed, and the generated foam was sensory evaluated by a panel of 10 experts. In addition, the evaluation criteria are as follows.
[Foam Elasticity]
◎: 8 or more subjects answered that the foam elasticity was very good ○: 5 or more and less than 8 subjects answered that the foam elasticity was good △: Somewhat bad The number of subjects is 1 or more and less than 5 ×: Poor The number of subjects who answered that there is foam elasticity is 0

(4) Evaluation of feeling of use when washing hair with sufficient foam and when rinsing foam Using black human hair (30 cm, 10 g) manufactured by Beaulux Co., Ltd., apply 3 g of a surfactant composition or detergent composition. Sensory evaluation was carried out by a panel of 10 experts on finger combability during shampooing in a sufficiently foamed state and finger combability during foam rinsing. In addition, the evaluation criteria are as follows.
[Finger pass when washing hair with sufficient foam]
◎: Very good
8 or more ○: Good
6 or more, less than 8 △: Somewhat bad
4 or more, less than 6 x: Poor
Less than 4 people [finger pass when rinsing foam]
◎: Very good
8 or more ○: Good
6 or more, less than 8 △: Somewhat bad
4 or more, less than 6 x: Poor
less than 4

Example 1-1 and Comparative Examples 1-1 to 1-3
Surfactant compositions shown in Table 1 were prepared by conventional methods. Table 1 shows the evaluation results of foaming power, foam resilience, and finger combability when shampooing with sufficient foam and when rinsing the foam for each surfactant composition. In addition, the compounding amount in all the following examples and comparative examples is % by mass.

As is clear from Table 1, the surfactant composition of Example 1 using lauroyl hydroxyethyl-β-alanine Na, which is a foaming accelerator of the present invention, is superior to the compositions of Comparative Examples 1 to 3. , better foaming power, foam resilience, and finger-combability when shampooing with a sufficiently foamed state and when rinsing the foam.

Examples 2-1 to 2-4 and Comparative Example 2-1
Surfactant compositions shown in Table 2 were prepared by conventional methods. Table 2 shows the evaluation results of foaming power, foam resilience, and finger combability when shampooing with a sufficiently foamed state and when rinsing the foam. In addition, the compounding amount in all the following examples and comparative examples is % by mass.

As is clear from Table 2, the acylhydroxyethyl-β-alanine salt foaming promoter of the present invention exhibits better foaming when the RCO has 8 to 14 carbon atoms. Foam strength, foam elasticity, and finger combing performance when washing hair with sufficient foam and rinsing with foam.

Examples 3-1 to 3-4
Surfactant compositions shown in Table 3 were prepared by conventional methods. Table 3 shows the evaluation results of foaming power, foam resilience, and finger combability during shampooing with sufficient foam and foam rinsing for each surfactant composition. In addition, the compounding amount in all the following examples and comparative examples is % by mass.

As is clear from Table 3, the acylhydroxyethyl-β-alanine salt foaming promoter of the present invention has a counterion of a metal ion such as sodium or potassium, alkanolamine, or ammonium. In some cases, it exhibits better foaming power, foam resilience, and finger combability during shampooing in a fully foamed state and during foam rinsing.

Examples 4-1 to 4-10 and Comparative Examples 4-1 to 4-3
Shampoo compositions shown in Table 4 were prepared by conventional methods. Table 4 shows the evaluation results of foaming power, foam resilience, and finger combability when shampooing with sufficient foam and when rinsing the foam for each shampoo composition. In addition, the compounding amount in all the following examples and comparative examples is % by mass.

As is clear from Table 4, lauroyl hydroxyethyl-β-, which is a foaming accelerator of the present invention,
Alanine Na, a foaming accelerator, can be added to an anionic surfactant or an amphoteric surfactant to improve foaming power, foam elasticity, hair washing in a sufficiently foamed state, and foam rinsing. Even if two or more kinds of surfactants are combined, the effect is effectively expressed.

Examples 5-1 to 5-6 and Comparative Example 5-1
Shampoo compositions shown in Table 5 were prepared by conventional methods. Table 5 shows the evaluation results of foaming power, foam resilience, and finger combability when shampooing with sufficient foam and when rinsing the foam for each shampoo composition. In addition, the compounding amount in all the following examples and comparative examples is % by mass.

As is clear from Table 5, when the ratio of the foaming accelerator of the present invention to the base surfactant (Component A/Component B ratio) is in the range of 0.2 to 8.0, It exhibits good foaming power, foam elasticity, and finger-combability when shampooing in a sufficiently foamed state and when rinsing the foam.

Examples 6-1 to 6-6 are given below as other formulation examples of detergent compositions to which the foaming promoter of the present invention is added. The detergent compositions of these Examples were also evaluated for the aforementioned items such as foaming power and foam resilience. In addition, the compounding quantity in all the following examples is mass %.

Example 6-1 Shampoo blending amount (mass%)
Lauroyl hydroxyethyl-β-alanine Na 10.0
Palm kernel fatty acid amidopropyl betaine 5.0
Lauramide MIPA 0.3
PPG-2 cocamide 0.3
Coconut fatty acid PEG-7 glyceryl 0.5
O-[2-hydroxy-3-(trimethylammonio)propyl] chloride
Hydroxyethyl cellulose 0.4
EDTA-2Na 0.1
Sodium benzoate 0.5
Glycol distearate 2.0
Perfume 0.5
purified water residue

A shampoo having the above composition was prepared by a conventional method and evaluated for foaming power, foam resilience, and finger combability when washing the hair in a sufficiently foamed state and when rinsing the foam. got

Example 6-2 Shampoo blending amount (mass%)
Cocoyl hydroxyethyl-β-alanine Na 5.0
Lauroylmethyl-β-alanine Na 5.0
Lauroyl Sarcosine TEA 2.0
Palm kernel fatty acid amidopropyl betaine 3.0
2-alkyl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine
2.0
Dimethyldiallylammonium chloride/acrylamide copolymer 0.3
Cocamide MEA 1.0
Cocamidomethyl MEA 2.0
Guar hydroxypropyltrimonium chloride 0.5
sodium chloride 1.0
Perfume 0.5
purified water residue

A shampoo having the above composition was prepared by a conventional method and evaluated for foaming power, foam resilience, and finger combability when washing the hair in a sufficiently foamed state and when rinsing the foam. got

Example 6-3 Shampoo blending amount (mass%)
Lauroyl hydroxyethyl-β-alanine Na 4.0
Polyoxyethylene lauryl ether sulfate Na 4.0
Cocoyl threonine Na 0.3
Sodium cocoyl glutamate 0.3
Cocoyl glutamate 2Na 1.2
Palm kernel fatty acid amidopropyl betaine 3.0
Cocamide MEA 1.0
Dimethicone 0.5
Ethylene glycol distearate 1.5
Methacryloylethyldimethylbetaine/methacryloylethyltrimethylammonium chloride/methoxypolyethylene glycol methacrylate copolymer liquid 0.1
Guar hydroxypropyltrimonium chloride 0.1
O-[2-hydroxy-3-(trimethylammonio)propyl] chloride
Hydroxyethyl cellulose 0.1
Coconut Fatty Acid PEG-7 Glyceryl 1.0
Citric acid 0.1
purified water residue

A shampoo having the above composition was prepared by a conventional method and evaluated for foaming power, foam resilience, and finger combability when washing the hair in a sufficiently foamed state and when rinsing the foam. got

Example 6-4 Body soap blending amount (mass%)
Lauroyl hydroxyethyl-β-alanine Na 5.0
Cocoyl methyl taurine Na 3.0
Sodium cocoyl glutamate 3.0
Sodium lauroyl aspartate 3.0
Cocoylglycine K 3.0
Lauryl betaine 3.0
Cocamidopropyl Betaine 3.0
Lauroyl hydroxysultaine 3.0
Lauryl glucoside 5.0
Guar hydroxypropyltrimonium chloride 0.5
Dimethyldiallylammonium chloride/acrylamide copolymer 0.3
Glycerin 10.0
1,3-BG 10.0
Sorbitol 10.0
Glycosyltrehalose 10.0
Perfume 1.0
purified water residue

A body soap having the above composition was prepared by a conventional method and evaluated for foaming power and foam elasticity.

Example 6-5 Body soap amount (mass%)
Potassium Laurate 8.0
Potassium myristate 7.0
Potassium palmitate 5.0
Lauroyl hydroxyethyl-β-alanine Na 1.0
Polyoxyethylene lauryl ether sulfate Na 0.5
Dimethyldiallylammonium chloride/acrylamide copolymer 0.3
Cocamide MEA 1.0
Ethylene glycol distearate 1.5
Hydroxypropyl methylcellulose 0.1
Glycosyltrehalose 1.0
Perfume 1.0
purified water residue

A body soap having the above composition was prepared by a conventional method and evaluated for foaming power and foam elasticity.

Example 6-6 Facial cleanser blending amount (mass%)
Lauroyl hydroxyethyl-β-alanine Na 7.0
Cocoyl methyl taurine Na 3.0
Sodium cocoyl glutamate 3.0
Sodium lauroyl aspartate 3.0
Cocoylglycine K 3.0
Lauryl betaine 5.0
Cocamidopropyl Betaine 5.0
Lauroyl hydroxysultaine 5.0
Lauryl glucoside 7.0
Guar hydroxypropyltrimonium chloride 0.5
Dimethyldiallylammonium chloride/acrylamide copolymer 0.3
Glycerin 10.0
2,3-BG 10.0
Sorbitol 10.0
Glycosyltrehalose 10.0
Perfume 1.0
purified water residue

A face wash having the above composition was prepared by a conventional method and evaluated for foaming power and foam elasticity.

Claims (4)

A foaming accelerator of the following component (B) containing the following component (A) as an active ingredient,
The compounding ratio of (A) and (B) is (A)/(B)=1.0 to 2.2 (except when (A)/(B)=1). A foaming accelerator characterized by:
(A) an acylhydroxyethyl-β-alanine salt represented by the following general formula (1)

(In formula (1), RCO represents a saturated fatty acid residue having 8 to 14 carbon atoms, and M represents Na, K, alkanolamine, or ammonium.)
(B) an amino acid-based anionic surfactant (excluding component (A) above); (B) is N-lauroyl sarcosine triethanolamine, N-myristoyl sarcosine triethanolamine, N-lauroyl sarcosine sodium, N-myristoyl sarcosine sodium, N-cocosine triethanolamine, N-cocosine sodium sarcosine , N-lauroyl-N-methyl-β-alanine sodium, N-lauroyl-N-methyl-β-alanine triethanolamine, N-myristoyl-N-methyl-β-alanine sodium, N-coconut fatty acid -N- 2. The foaming accelerator according to claim 1, which is one or more amino acid-based anionic surfactants selected from sodium methyl-β-alanine and sodium cocoyl threonine. 3. The foaming accelerator according to claim 1 or 2, wherein the acylhydroxyethyl-β-alanine salt is lauroylhydroxyethyl-β-alanine Na. Containing a foaming accelerator of the following component (A) and a surfactant of the following (B),
The compounding ratio of (A) and (B) is (A)/(B)=1.0 to 2.2 (except when (A)/(B)=1). A shampoo composition characterized by:
(A) an acylhydroxyethyl-β-alanine salt represented by the following general formula (1)

(In formula (1), RCO represents a saturated fatty acid residue having 8 to 14 carbon atoms, and M represents Na, K, alkanolamine, or ammonium.)
(B) an amino acid-based anionic surfactant (excluding component (A) above);