There are a couple of theories as to why pharmacies often use green in their branding and signage.
Theories Behind the Green Pharmacy Color
According to available information, when pharmacies shifted to using color, two main ideas arose:
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Plant-Based Medicines: Many early medicines were derived from plants, associating green with natural healing.
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Military Pharmacists: In the 18th and 19th centuries, military pharmacists sometimes wore green armbands. (Reference: 14-Oct-2019)
It's important to note that while green is a common color, other symbols, like the bowl and snake, are also frequently used by pharmacies globally. (Reference: 14-Oct-2019)