Four-layer cosmetic

Abstract

To provide a four-layer type cosmetic.SOLUTION: A four-layer type cosmetic containing: (A)1,2-hexanediol of the present invention; (B) at least one or more kinds of moisturizing agent selected from a group consisting of polyethylene glycol, polyethylene glycol ether whose skeleton is sugar, polypropylene glycol, polypropylene glycol ether whose skeleton is sugar, and glycosyl trehalose, and / or salt; (C) oil content insoluble into silicon oil; (D) silicon oil having the kinematic viscosity of 5 mm2 / s or more; (E) nonionic surfactant or anionic surfactant; and (F) water.SELECTED DRAWING: None

Description

Technical Field

[0001] The present invention relates to a four-layer cosmetic. According to the present invention, a four-layer cosmetic can be obtained.

Background Art

[0002] Two-layer cosmetics separated into two layers or three-layer cosmetics separated into three layers are shaken during use and used after mixing, and include lotion, essence, or makeup remover, etc. For example, two-layer cosmetics are disclosed in Patent Documents 1 and 2, and three-layer cosmetics are described in Patent Documents 3 and 4.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, four-layer cosmetics have not been reported. The object of the present invention is to provide a four-layer cosmetic.

Means for Solving the Problems

[0005] As a result of intensive research on four-layer cosmetics, the present inventors surprisingly found that a four-layer cosmetic can be obtained by using (1) 1,2-hexanediol, (2) a specific humectant and / or salt, (3) an oil insoluble in silicone oil, (4) a specific silicone oil, (5) a nonionic surfactant or an anionic surfactant, and (6) water. The present invention is based on such findings. Therefore, the present invention provides [1] A four-layer cosmetic comprising (A) 1,2-hexanediol, (B) at least one humectant selected from the group consisting of polyethylene glycol, polyethylene glycol ether having a sugar backbone, polypropylene glycol, polypropylene glycol ether having a sugar backbone, and glycosyltrehalose, and / or a salt, (C) an oil insoluble in silicone oil, (D) a silicone oil having a kinematic viscosity of 5 mm 2 / s or more, (E) a nonionic surfactant or an anionic surfactant, and (F) water, and [2] The four-layer cosmetic according to [1], wherein the salt is an inorganic salt, an organic salt, or an amino acid salt. relates to.

Advantages of the Invention

[0006] According to the four-layer cosmetic of the present invention, a four-layer cosmetic having a stable interface can be provided. The four-layer cosmetic of the present invention can use commonly used cosmetic ingredients in addition to specific ingredients. Therefore, the four-layer cosmetic of the present invention can be applied to various cosmetics (for example, makeup remover, lotion, essence, massage oil, hair oil, bath agent, or dry shampoo).

Modes for Carrying Out the Invention

[0007] The four-layer cosmetic of the present invention contains (A) 1,2-hexanediol (hereinafter sometimes referred to as component A), (B) at least one or more humectants selected from the group consisting of polyethylene glycol, polyethylene glycol ether having a sugar backbone, polypropylene glycol, polypropylene glycol ether having a sugar backbone, and glycosyltrehalose (hereinafter sometimes referred to as component B1), and / or salts (hereinafter sometimes referred to as component B2), (C) an oil component insoluble in silicone oil (hereinafter sometimes referred to as component C), (D) a silicone oil having a kinematic viscosity of 5 mm 2 / s or more (hereinafter sometimes referred to as component D), (E) a nonionic surfactant or an anionic surfactant (hereinafter sometimes referred to as component E), and (F) water (hereinafter sometimes referred to as component F).

[0008] 《1,2-Hexanediol (Component A)》 The four-layer cosmetic of the present invention contains 1,2-hexanediol. 1,2-Hexanediol is a glycol represented by the chemical formula C6H 14 O2. The content of 1,2-hexanediol in the four-layer cosmetic is not particularly limited as long as a four-layer structure can be obtained. For example, it can contain 0.6 to 19.0% by weight, preferably 0.7 to 18.0% by weight, more preferably 0.8 to 17.0% by weight, still more preferably 0.9 to 16.0% by weight, and most preferably 1.0 to 15.0% by weight. If the content of 1,2-hexanediol is too low or too high, instead of forming four layers, it may form three layers. By adding 1,2-hexanediol, a four-layer cosmetic with a stable interface that quickly separates into four layers can be obtained.

[0009] 《Component B》 The four-layer cosmetic of the present invention contains at least one or more humectants selected from the group consisting of polyethylene glycol, polyethylene glycol ether having a sugar backbone, polypropylene glycol, polypropylene glycol ether having a sugar backbone, and glycosyltrehalose, and / or salts. By containing the moisturizer or the salt, a four-layered cosmetic can be obtained, and by containing both the moisturizer and the salt, a more stable four-layered cosmetic can be obtained.

[0010] 《Humectant (Component B1)》 The humectant is polyethylene glycol, polyethylene glycol ether with a sugar backbone, polypropylene glycol, polypropylene glycol ether with a sugar backbone, or glucosyl trehalose, or a combination of two or more thereof.

[0011] Polyethylene glycol has the following formula (1):

Chemical formula

[0012] Polypropylene glycol has the following formula (2):

Chemical formula

[0013] The polyethylene glycol ether with a sugar backbone is not particularly limited, and examples thereof include polyethylene glycol ether of methylglucose. The polyethylene glycol ether of methylglucose has the following formula (3):

Chemical formula

[0014] The polypropylene glycol ether of sugar of the skeleton is not particularly limited, and examples thereof include polypropylene glycol ether of methylglucose. The polypropylene glycol ether of methylglucose is represented by the following formula (4): [Chemical formula] It is a polymer compound represented by. As the polypropylene glycol ether of methylglucose, commercially available PPG-10 methylglucose (MacBride MG10P; NOF Corporation) or PPG-20 methylglucose (MacBride MG20P; NOF Corporation) can be used.

[0015] Glycosyl trehalose is represented by the following formula (5): [Chemical formula] It is a compound represented by. As glycosyl trehalose, commercially available Tornare (Hayashibara Co., Ltd.) can be used.

[0016] The molecular weight of the humectant is not limited. For example, in the case of polyethylene glycol, it may have two or more repeating units of ethylene glycol. Therefore, the lower limit of the molecular weight (weight average molecular weight) is, for example, 150 Mw or more, preferably 200 Mw or more, and more preferably 300 Mw or more. The upper limit is not particularly limited, but is, for example, 100,000 Mw or less.

[0017] 《Salt (Component B2)》 Examples of the salt include inorganic salts, organic salts, and amino acid salts. Examples of the inorganic salts include sodium chloride, potassium chloride, sodium sulfate, magnesium sulfate, sodium carbonate, calcium carbonate, sodium sulfite, sodium hydrogen phosphate, disodium hydrogen phosphate, or trisodium hydrogen phosphate. Examples of the organic salts include sodium citrate, dihydroxypropylarginine HCl, sodium lactate, disodium dihydrogen ethylenediaminetetraacetate (EDTA-2Na), magnesium ascorbyl phosphate, or sodium pyrrolidone carboxylate. Examples of the amino acid salts include sodium aspartate, magnesium aspartate, dihydroxypropylarginine hydrochloride, lysine hydrochloride, or sodium glutamate.

[0018] The content of the humectant is not particularly limited, but the lower limit is 1.2% by weight, preferably 1.4% by weight, more preferably 1.6% by weight, still more preferably 1.8% by weight, and most preferably 2.0% by weight. The upper limit is not particularly limited, but is 35.0% by weight, preferably 25% by weight, more preferably 20% by weight, and still more preferably 15% by weight. The above upper and lower limits can be combined as appropriate. The content of the salt is not particularly limited, but the lower limit is 1.2% by weight, preferably 1.4% by weight, more preferably 1.6% by weight, still more preferably 1.8% by weight, and most preferably 2.0% by weight. The upper limit is not particularly limited, but is 20.0% by weight, preferably 18.0% by weight, more preferably 15.0% by weight, and still more preferably 10.0% by weight. The above upper and lower limits can be combined as appropriate.

[0019] Further, the humectant and the salt can each be added alone to prepare a four-layer cosmetic, or a four-layer cosmetic can also be prepared by containing both the humectant and the salt. When containing the humectant and the salt, the lower limit of the salt is, for example, 0.1% by weight, preferably 0.2% by weight, more preferably 0.3% by weight, still more preferably 0.4% by weight, and most preferably 0.5% by weight. When containing the humectant and the salt, the lower limit of the humectant is, for example, 0.1% by weight, preferably 0.2% by weight, more preferably 0.3% by weight, still more preferably 0.4% by weight, still more preferably 0.5% by weight, still more preferably 0.6% by weight, still more preferably 0.7% by weight, still more preferably 0.8% by weight, still more preferably 0.9% by weight, and most preferably 1.0% by weight. When containing the humectant and the salt, the upper limit of the contents of the humectant and the salt is not particularly limited.

[0020] 《Oil component (Component C) insoluble in silicone oil》 The oil component used in the four-layer cosmetic of the present invention is not particularly limited as long as it is an oil component insoluble in silicone oil, and examples thereof include ester oil, ether oil, aliphatic alcohol, animal and vegetable oils, or essential oils. Examples of vegetable oils include avocado oil, corn oil, persic oil, southernwood oil, castor oil, safflower oil, cinnamon oil, almond oil, soybean oil, soybean germ oil, rapeseed oil, high oleic rapeseed oil, corn oil, sesame oil, perilla oil, linseed oil, peanut oil, safflower oil, high oleic acid safflower oil, sunflower oil, mid oleic sunflower oil, high oleic acid sunflower oil, cottonseed oil, grape seed oil, hazelnut oil, pumpkin seed oil, walnut oil, camellia oil, tea seed oil, egoma oil, borage oil, rice bran oil, palm oil, palm kernel oil, coconut oil, cocoa butter, and algal oil, as well as their fractionated oils, hydrogenated oils, and transesterified oils. However, jojoba oil, macadamia nut oil, camellia oil, camellia japonica oil, sunflower oil, rapeseed oil, almond oil, or avocado oil is preferred. Examples of the ester oil include glyceryl triisostearate, polyglyceryl-2 tetraisostearate, propanediol diisostearate, dipentaerythrityl tripolyhydroxystearate, trimethylolpropane triisostearate, pentaerythrityl tetraisostearate, polyglyceryl-6 octacaprylate, or octyldodecyl lactate.

[0021] In this specification, the "oil component insoluble in silicone oil" means an oil component that is substantially insoluble in silicone oil. Specifically, the amount of the oil component dissolved in silicone oil is 20% by weight or less, preferably 10% by weight or less, and more preferably 5% by weight or less. Whether an oil component is soluble or insoluble in silicone oil can be specifically determined as follows. For example, while stirring, the oil component to be tested is added little by little to 100 g of silicone oil. An oil component that does not dissolve at all becomes turbid immediately and separates into two layers when left standing. An oil component that dissolves in a certain amount dissolves in the silicone oil and becomes transparent when added in a small amount, but becomes turbid when the amount that does not dissolve is reached. The amount of the oil component added at the time of turbidity and the amount of the oil component tested dissolved in 100 g of silicone oil can be calculated. Note that "the dissolution amount is 20% by weight" means that 20 g of the oil component is dissolved in 100 g of silicone oil. The silicone oil used in the dissolution test is not particularly limited, and examples thereof include the silicone oil of component (D). Specifically, a silicone oil having a kinematic viscosity of 5 mm 2 / s or more can be used. For example, a silicone oil having a kinematic viscosity of 6.0 mm 2 / s can also be used.

[0022] The content of component (C) in the four-layer cosmetic is not particularly limited as long as a four-layer structure can be obtained. For example, it can be contained in an amount of 1.5 to 60% by weight, preferably 2 to 50% by weight, more preferably 2.5 to 45% by weight, and most preferably 5 to 40% by weight. Component (C) is a main component that forms one of the four layers and can be appropriately used within any of the above ranges in consideration of its ratio to other layers. The multi-layer cosmetic of the present invention can be used as various cosmetics by adjusting the amount of component (C).

[0023] 《Silicone oil (component D) with kinematic viscosity of 5 mm 2 / s or more》 Component (D) used in the present invention is a silicone oil with a kinematic viscosity of 5 mm 2 / s or more. As long as the kinematic viscosity is 5 mm 2 / s or more, it is not particularly limited, but preferably 6 mm 2 / s or more. The upper limit of the kinematic viscosity is not particularly limited, but preferably 1000 mm 2 / s or less, and more preferably 500 mm 2 / s or less. The average molecular weight of component (D) used in the present invention is not particularly limited. However, the lower limit is preferably 500 or more, more preferably 600 or more, and still more preferably 700 or more. The upper limit of the average molecular weight is not limited, but it is 50000 or less, and more preferably 20000 or less.

[0024] Specific examples of the silicone oil include dimethylpolysiloxane. The silicone oil used as component (D) of the present invention can be mixed with other silicone oils as long as the effects of the present invention can be obtained.

[0025] The content of component (D) in the four-layer cosmetic is not particularly limited as long as a four-layer structure can be obtained. For example, it can be contained in an amount of 1.5 to 60% by weight, preferably 2 to 50% by weight, more preferably 2.5 to 45% by weight, and most preferably 5 to 40% by weight. Component (C) is the main component that forms one of the four layers, and can be appropriately used within any of the above-mentioned ranges in consideration of the ratio with other layers. The multi-layer cosmetic of the present invention can be used as various cosmetics by adjusting the amount of component (C).

[0026] 《Nonionic surfactant and / or anionic surfactant (component E)》 The nonionic surfactant used in the four-layer cosmetic of the present invention is not limited as long as a four-layer structure can be obtained. For example, one or more nonionic surfactants of the ester type, ether type, ester-ether type, or alkanolamide type can be mixed and used, but preferably an ester type nonionic surfactant, an ester-ether type nonionic surfactant, or an alkanolamide type.

[0027] Examples of the ester type nonionic surfactant include PEG-8 isostearate, PEG-10 isostearate, PEG-12 isostearate, PEG-8 diisostearate, PEG-10 diisostearate, PEG-12 diisostearate, PEG-8 triisostearate, PEG-10 triisostearate, or PEG-12 triisostearate.

[0028] Examples of the ester-ether type nonionic surfactant include glyceryl PEG-8 isostearate, glyceryl PEG-10 isostearate, glyceryl PEG-12 isostearate, glyceryl PEG-8 diisostearate, glyceryl PEG-10 diisostearate, glyceryl PEG-12 diisostearate, glyceryl PEG-8 triisostearate, glyceryl PEG-10 triisostearate, or glyceryl PEG-12 triisostearate.

[0029] Examples of alkanolamide type nonionic surfactants include coconut fatty acid monoethanolamide, coconut fatty acid diethanolamide, stearic acid monoethanolamide, stearic acid diethanolamide, lauric acid monoethanolamide, lauric acid diethanolamide, oleic acid monoethanolamide, oleic acid diethanolamide, isostearic acid diethanolamide, palm kernel oil diethanolamide, lauric acid monoisopropanolamide, myristic acid diethanolamide, lauric acid myristic acid diethanolamide, or palmitic acid monoethanolamide.

[0030] As the anionic surfactant, as long as the effects of the present invention can be obtained, it is not particularly limited, but examples include di(C12-15) paleth-2 phosphate, di(C12-15) paleth-4 phosphate, di(C12-15) paleth-6 phosphate, tri(C12-15) paleth-2 phosphate, and tri(C12-15) paleth-8 phosphate.

[0031] The content of the nonionic surfactant or anionic surfactant in the four-layer cosmetic is not particularly limited as long as the four-layer structure can be obtained. For example, it can contain 0.1 to 40% by weight, preferably 0.5 to 37.5% by weight, and most preferably 1 to 35% by weight. The nonionic surfactant is a main component that forms one of the four layers. In the four-layer cosmetic, the nonionic surfactant or anionic surfactant may be contained alone, or the nonionic surfactant or anionic surfactant may be contained together. Also, one type of nonionic surfactant or anionic surfactant may be contained, or two or more types of nonionic surfactants and / or anionic surfactants may be contained.

[0032] 《Water (Component F)》 The multilayer cosmetic of the present invention contains water (e.g., ion-exchanged water). The water content in the multilayer cosmetic is not particularly limited as long as a multilayer structure can be obtained. For example, it can contain 5 to 70% by weight, preferably 8 to 65% by weight, more preferably 10 to 60% by weight, and most preferably 14 to 56% by weight. Water is a main component forming one of the four layers and can be appropriately used within any of the above ranges in consideration of the ratio with other layers.

[0033] 《Action》 In the four-layer cosmetic of the present invention, the reason for the formation of the four layers has not been fully elucidated, but it can be inferred as follows. However, the present invention is not limited by the following explanation. In the four-layer cosmetic of the present invention, the main components forming the four layers are considered to be an oil component (Component C) insoluble in silicone oil, silicone oil (Component D), a nonionic surfactant and / or an anionic surfactant (Component E), and water (Component F). In order to stabilize the interfaces of these four layers and quickly separate them into four layers, 1,2-hexanediol (Component A) acts with a specific humectant (Component B1) and / or a salt (Component B2). Furthermore, it is presumed that a phase mainly containing a surfactant is precipitated as an independent phase from the aqueous phase and the oil phase.

Examples

[0034] Hereinafter, the present invention will be specifically described by way of examples, but these do not limit the scope of the present invention.

[0035] 《Examples 1 to 2》 In this example, component (A): 1,2 - hexanediol (KMO - 6), as component (B1), polyethylene glycol (PEG6000), as component (B2), sodium chloride (table salt), as component (C), refined jojoba oil, as component (D), silicone oil (KF - 96A - 6), and as non - ionic surfactants of component (F), PEG - 8 diisostearate (EMALEX 400diisEX), PEG - 12 diisostearate (EMALEX 600diisEX), and PEG - 10 isostearate (EMALEX PEIS - 10EX), and water as component (F) were mixed in the composition (weight %) shown in Table 1 to prepare a cosmetic base material. The results of four - layer formation after 1 day and after 1 week are shown in Table 1.

[0036] 《Comparative Examples 1 - 5》 In this comparative example, cosmetic base materials containing components (C) - (F) but not containing component (B) (Comparative Examples 1, 4, and 5), not containing components (A) and (B1) (Comparative Example 2), or not containing components (A) and (B) (Comparative Example 3) were mixed in the composition shown in Table 1. The results of four - layer formation after 1 day and after 1 week are shown in Table 1.

[0037] 《Reference Example 1》 In this reference example, a cosmetic base material not containing components (A) and (B1) (containing component (B2)) was mixed in the composition shown in Table 1. The results of four - layer formation after 1 day and after 1 week are shown in Table 1.

[0038] "Transparency of the layer" was evaluated in four grades: ◎, ○, △, and ×. ◎: The layer is transparent ○: The layer is slightly turbid but almost transparent △: The layer is considerably turbid ×: The layer is significantly turbid

[0039]

Table 1

[0040] 《Examples 3 to 8》 In this example, as component (B1), sodium chloride, potassium chloride, sodium DL-pyrrolidonecarboxylate (PCA-Na), magnesium sulfate, sodium glutamate, or sodium ascorbyl phosphate was used and mixed at the composition (weight %) shown in Table 2 to prepare a cosmetic substrate. The results of four-layer formation after 1 day are shown in Table 2.

[0041]

Table 2

[0042] 《Examples 9 to 16》 In this example, as component (B2), polyethylene glycol 6000, polyethylene glycol 400, polyethylene glycol 1000, polyethylene glycol 4000, polyethylene glycol 20000, polyethylene glycol ether of glucose (MacBride MG-10 and MacBride MG-20), or a humectant of glucosyl trehalose (Tornare) was used and mixed at the composition (weight %) shown in Table 3 to prepare a cosmetic substrate. The results of four-layer formation after 1 day are shown in Table 3.

[0043]

Table 3

[0044] 《Examples 17 to 30》 In this example, as component (C), refined jojoba oil, refined macadamia nut oil, refined camellia oil, refined camellia japonica oil, high oleic sunflower oil, rapeseed oil, almond oil, avocado oil, polyglyceryl-6 octacaprylate (Saracos HG-8), octyldodecyl lactate (Cosmol 13), trimethylolpropane triisostearate (Saracos 6318V), pentaerythrityl tetraisostearate (Saracos 5418V), dipentaerythrityl tripolyhydroxystearate (Saracos WO6) were used and mixed at the composition (weight %) shown in Table 4 to prepare a cosmetic base material. The results of four-layer formation after 1 day are shown in Table 4.

[0045]

Table 4

[0046] 《Examples 31 to 38》 In this example, as component (E), PEG-12 diisostearate (EMALEX 600diisEX), glyceryl PEG-20 triisostearate (EMALEX GWIS-320), glyceryl PEG-10 diisostearate (EMALEX GWIS-210EX), glyceryl PEG-8 isostearate (EMALEX GWIS-108), glyceryl PEG-15 isostearate (EMALEX GWIS-115), glyceryl PEG-10 triisostearate (EMALEX GWIS-310), hydrogenated castor oil PEG-10 triisostearate (EMALEX RWIS-310), hydrogenated castor oil PEG-20 triisostearate (EMALEX RWIS-320), polyoxyethylene sorbitol tetraoleate (NIKKOL GO-430), PEG-10 isostearate (EMALEX PEIS-10EX), polyoxyethylene alkyl (12 - 15) ether phosphate (NIKKOL TDP-2), and polyoxyethylene alkyl (12 - 15) ether phosphate (NIKKOL DDP-2) were used and mixed at the composition (by weight) shown in Table 5 to prepare a cosmetic base material. The results of four-layer formation after 1 day are shown in Table 5.

[0047]

Table 5

[0048] 《Examples 39 - 43》 In this example, a cosmetic base material containing 1 - 15% by weight of 1,2 - hexanediol (KMO-6) as component (A) was prepared. The results of four-layer formation after 1 day are shown in Table 6.

[0049]

Table 6

[0050] 《Examples 44 - 56》 In this example, a cosmetic base material containing 0.5 to 15% by weight of sodium chloride (table salt) as component (B1) and 1 to 20% by weight of polyethylene glycol ether of methyl glucose (methyl gluceth-10) as component (B2) was prepared. The results of four-layer formation after 1 day are shown in Table 7.

[0051]

Table 7

[0052] 《Examples 57 to 60》 In this example, dimethylpolysiloxane KF-96A-6 (kinematic viscosity 6 mm 2 / s), KF-96A-20 (kinematic viscosity 20 mm 2 / s), and KF-96-100 (kinematic viscosity 100 mm 2 / s) were used and mixed in the composition shown in Table 8 to prepare a cosmetic base material. The results of four-layer formation after 1 day are shown in Table 8.

[0053] 《Comparative Examples 6 to 8》 In this example, instead of component (D), dimethylpolysiloxane KF-96L-1.5 cs (kinematic viscosity 1.5 mm 2 / s), cyclopentasiloxane (KF-995), and squalane (sugar squalane) were used and mixed in the composition shown in Table 8 to prepare a cosmetic base material. The results of four-layer formation after 1 day are shown in Table 8.

[0054]

Table 8

[0055] 《Examples 61 - 71》 In this example, a cosmetic base material containing 5 - 40% by weight of refined jojoba oil as component (C) and 5 - 40% by weight of dimethylpolysiloxane KF - 96A - 6 as component (D) was prepared. The results of four - layer formation after 1 day are shown in Table 9.

[0056]

Table 9

[0057] 《Examples 72 - 80》 In this example, a cosmetic base material containing 1 - 35% by weight of a non - ionic surfactant as component (E) was prepared. The results of four - layer formation after 1 day are shown in Table 10.

[0058]

Table 10

[0059] 《Example 81》 In this example, a four - layer makeup remover was prepared. The raw materials and composition are shown in Table 11. As component (E), di(C12 - 15) pareth - 2 phosphate, an anionic surfactant, was used.

[0060]

Table 11

[0061] 《Example 81》 In the example, a four - layer hair oil was prepared. The raw materials and composition are shown in Table 12.

[0062]

Table 12

Industrial Applicability

[0063] The four-layer cosmetic of the present invention can be used for makeup remover, lotion, essence, massage oil, hair oil, bath agent, or dry shampoo.

Claims

1. (A) 1,2 - hexanediol, (B) At least one or more humectants selected from the group consisting of polyethylene glycol, polyethylene glycol ether with a sugar backbone, polypropylene glycol, and polypropylene glycol ether with a sugar backbone, (C) An oil component insoluble in silicone oil, (D) The kinematic viscosity is 5 mm ２ / s or more of silicone oil, (E) A nonionic surfactant or an anionic surfactant, and (F) Water, A four - layer cosmetic containing the same.

2. The four - layer cosmetic according to Claim 1, further containing a salt.

3. The four - layer cosmetic according to Claim 2, wherein the salt is an inorganic salt, an organic salt, or an amino acid salt.

Images