Founded in 2021 and based in Zurich, Switzerland, Covalo connects cosmetic brands with ingredient and packaging manufacturers, formulation and manufacturing service providers and various laboratories through a comprehensive search engine.
The company also provides ingredient suppliers with a comprehensive real-time industrial data platform to effectively market their products. Covalo was founded in 2021 and is based in Zurich, Switzerland.
Covalo has published a study assessing the impact of nine environmental factors on skin health, ranking the best and worst cities for the skin.
French cities are a long way from the top of the ranking. Paris came 26th: high humidity, poor air quality and pollution in particular cost it points. The second French city surveyed was Marseille, in 44th position overall. High stress levels due to traffic jams, poor air quality and the average annual UV index can damage your skin in the French port city.
Among our European neighbors, Munich, Madrid, Berlin and Milan score well, while London comes just ahead of Paris and Brussels ahead of Marseille. The three best large cities in the world for skin are Phoenix, Oslo and Montreal, just ahead of Munich.
At the bottom of the rankings, Mumbai is the worst city for the skin, notably because of traffic jams that stress the skin, and the combination of highly polluted air and high humidity that leads to a general decline in the skin's protective functions.
Some notable results:
- Brisbane, Phoenix and Canton have the highest average temperatures, with ideal skin temperatures around 22°C.
- Northern European cities such as Reykjavik, Helsinki, Oslo and Stockholm top the ranking thanks to their low UV indices.
- Belfast is the best city in the ranking in terms of the number of sunny days per year, since the greater the number of sunny days, the greater the risk of skin disease.
- Edinburgh scores top marks for air pollution: the Scottish city has the lowest levels of airborne particles, which have harmful effects on the skin.
- Montreal has the lowest annual wind speed, which means that the wind here dries out the skin less than in all the other cities in the ranking.
- Phoenix, New Delhi and Istanbul have the perfect humidity, with atmospheric water vapor concentrations between 30% and 50%.
- On the contrary, Panama, Lima and Singapore have the worst humidity levels, increasing skin sensitivity and causing acne.
- Phoenix and Montreal score highest in the Air category, which means that in these two North American cities, air quality is conducive to good skin health.
- In terms of daily cigarette consumption per smoker, causing acne and skin-damaging stress, Valletta comes first, closely followed by Riyadh and Taipei.
- Phoenix has the fewest hours spent in rush-hour traffic per driver, reducing the negative impact of stress on skin health.
- Germany has the lowest average number of hours worked per week per person, which minimizes the effects of work-related stress on the skin.
The aim of this study is to find out which are the best and worst cities for the skin, by analyzing 80 of the world's most populous cities. The factors taken into account for this study are related to air quality, solar radiation and stress, and all have an impact on the skin. These include average annual temperatures, sunny days, average UV index, air quality, average wind speed, average air humidity, hours worked per person, time spent in traffic jams and average daily cigarette consumption.
