HYGIENE
75
Improving the efficacy and skin feel of hand sanitisers
Coralie Alonso, Xin Qu, Asha Rani Ram, Priyanka Vichare, Sachin Patil, Tuttu Nuutinen, Kunal Kapsime - Ashland
The COVID-19 pandemic have heightened consumer awareness of hand hygiene, which has resulted in increased use of hand sanitisers. To address a larger market, more brands have launched products, resulting in a saturated market with a multitude of offerings often undistinguished from one another. So, the question then becomes – how
to differentiate your product in a crowded marketplace? The answer lies in improved performance, consumer experience and sustainability.
Performance, consumer experience and sustainability Common hand sanitisers may be effective against enveloped viruses such as coronavirus (SARS-CoV-2), but they may not be as effective against non-enveloped viruses such as poliovirus, adenovirus and norovirus. However, some hand sanitisers available commercially offer efficacy against enveloped and non- enveloped viruses with alcohol levels as high as 85%. Alcohol-based hand sanitisers often cause dryness and an unpleasant hand feel, resulting in lower consumer acceptance. The problem is exacerbated with a higher alcohol content. Therefore, it is important to incorporate ingredients in the formula that offer added benefits of moisturisation and improved skin
www.personalcaremagazine.com
Class
Eveloped viruses
Non-enveloped viruses Bacteria
Micoorganism Vaccinia Bacteria Murine norovirus Bacteria
Escherichia coli Staphylococcus aureus Pseudomonas aeruginosa Enterococcus hirae
Fungi Yeast
Aspergillus brasiliensis
Candida albicans
Diseases
Represents a group of viruses (including coronavirus) that can cause common colds and flu, as well as more severe illness
Poliomyelitis
Human adenovirus Cold and flu illness, Respiratory illness
Winter vomiting bug
Urinary tract infections Skin infections Lung infections Urinary tract infections
Aspergillosis Thrush
Test standards/time DIN EN 14476:2019 30s - 120s
DIN EN 14476:2019 30s - 120s DIN EN 14476:2019 30s - 120s DIN EN 14476:201930s - 120s
DIN EN 1276:2019 60s
DIN EN 1275:2019 60s DIN EN 1275:2019 60s
Table 1: Description of targeted microorganisms with reference to associated diseases and the standard test and contact time accepted by the industry to evaluate efficacy of formulations against those microorganisms
sensory properties, without compromising on performance of the formula. The modern eco-conscious consumers
prefer solutions that are sustainable. To address this trend, several brands have launched products that are based on plant- based alcohol and are naturally fragranced.
For gel type formulations, the choice of other components such as thickener need to incorporate sustainability criteria aligned with the brand’s sustainability positioning. We have demonstrated that hand sanitiser
formulas containing organic acid can be effective against both enveloped and non-
October 2022 PERSONAL CARE
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