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. |
