About HotatePowder

HotatePowder is a natural antimicrobial deodorant. Made using 100% escallop shell from Aomori Prefecture, it is both safe for human use and environmentally friendly.

Escallop shells have been said since ancient times to possess insecticidal properties. Utilizing our own special method of production (an intense heat cracking furnace), we heat treat these escallop shells at a high temperature of around 1,100°C. Once we have done this, we add water under special conditions to turn the shells into calcium hydroxide, which has a high degree of compatibility with materials. The result is HotatePowder, our natural antimicrobial deodorant.

HotatePowder’s Features

With a strong alkalinity of ≈ 12.6-13.2pH, HotatePowder is highly effective at killing germs through sterilization, not to mention superlative deodorizing and antioxidation qualities.

In addition, although possessing a strong basicity, in physical safety tests is falls within the safety zone.

HotatePowder’s antimicrobial properties

This chart presents the results of experiments on the antimicrobial properties ofHotatePowder. As you can see, HotatePowder is highly antimicrobial when it comes to such bacteria groups as Escherichia coli, Escherichia coli O-157, Staphylococcus aureus, salmonella, and Morganella morganii.

Bacteria specimen Rate of reduction /
antimicrobial activity value /
total viable bacterial count
Test method Report number
Escherichia coli >99.9(%) Shake flask method CK-4822-1
Escherichia coli O-157 >99.9(%) Shake flask method CK-4822-1
Staphylococcus aureus >99.9(%) Shake flask method CK-4822-1
Salmonella <1 total viable bacterial count Halo test CK-11-056760
Morganella
morganii
>4.8 antimicrobial
activity value
Application mutatis
mutandis of JIS Z2801,5
CK-12-037788-3

※The figures in this chart are measured values and not guaranteed values.

HotatePowder’s deodorizing properties

This chart presents the results of experiments on the deodorizing and gas removal capabilities of HotatePowder. HotatePowder exhibits superlative deodorizing capabilities mainly for those unpleasant odors that are noticeable in daily life.

Gas specimen Rate of reduction (%) Report number
Acetic acid gas (smell of sweat) 98(%) CK-10-043770
Isovaleric acid gas (foot and shoe odors) ≧99(%) CK-10-043770
Nonenal gas (responsible for
distinctive body odor in older people)
≧99(%) CK-10-043770
Hydrogen sulfide gas (excrement) ≧99(%) CK-3670-1
Acetaldehyde (VOC) 62(%) CK-3670-1

※ The figures in this chart are measured values and not guaranteed values.

HotatePowder’s safety

Safety tests carried out by public institutions have confirmed the safety of HotatePowder.

We have acquired a manufacturing license for foods additives through shell calcium obtained by firing shells (calcium hydroxide), in this case natural escallop shells. The safety of HotatePowder has been guaranteed through a range of tests.

Test name Test result
Acute oral toxicity test (Degree of harmfulness when swallowed) LD50 value of over 2000mg/kg
(Passes safety standards)
Report number 209030367-002
Primary dermal irritation test (Inflammation when touched for long periods of time) Category of reaction (P.I.I) 0.8
(Passes safety standards)
Report number 209030367-001
Mutagenicity test
(Effects on genes (DNA))
Tested negative for mutagenicity
(Passes safety standards)
Report number 209030367-003
Dermal sensitization test
(Allergic reactions on skin)
No dermal sensitization observed
(Passes safety standards)
Report number 209030367-004

Administering institution: Japan Food Research Laboratories

※The figures in this chart are measured values and not guaranteed values.


his chart compares HotatePowder antimicrobial deodorizing.

Item HotatePowder Silver-based (Ag)
antimicrobial agents
Aqueous solution of
sodium hypochlorite
Method of
deodorizing
Neutralization and decomposition through alkaline Definitive principle behind deodorizing effect remains unclear. Neutralization and decomposition through alkaline
Deodorizing
components
Shell calcium obtained by firing shells (Ca(OH2)) and purified water Ag (silver) and undisclosed metals Sodium hypochlorite and purified water
Durability From 30 minutes to 1 hour (published values) Small quantities, so cannot be expected. Changes according to the concentration.
Safety data Confirmation of safety (data) obtained through safety tests and toxicity tests relating to the skin has been published. Confirmation of safety (data) has been published. However, there are arguments both for and against its safety, as the deodorizing mechanisms of silver are not clear. Chemical type. Confirmation of safety (data) obtained through safety tests and toxicity tests relating to the skin has been published.
Aroma
chemical
None Depends on the type. None but has an acrid smell.
Labelling of
components
There are no additional substances mixed in, meaning that it is labelled clearly. Often labeled. Despite being a food additive, there are hidden dangers or toxicity, meaning that it is often labelled clearly.
Toxicity None No toxicity has been found yet (There is the possibility of contracting argyria). Toxic gas is emitted through a reaction with acidic substances.

株式会社 ホタテパウダー
〒101-0047 東京都千代田区内神田一丁目15番2号
神田オーシャンビル2階