<https://www.aromaticscanada.ca/shop/oils/essential-oils/essential-oils-py/spruce-white-essential-oil/#product>
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"Essential Oils Dilution Chart\r\nBotanical Name: Picea alba\r\n\r\nPlant Part: Twigs and Needles\r\n\r\nOrigin: Canada\r\n\r\nProcessing Method: Steam Distilled\r\n\r\nProduct Description: Often referred to as White Spruce, is a large conifer evergreen tree that normally grows to 50 to 100 feet tall, but can grow to approximately 130 feet tall with a trunk diameter of 1 meter. It has thin scaly bark that flakes off. They are very hardy in winter climates, and are often found in Canada. \r\n\r\nCautions: Dilute before use; for external use only. May cause skin irritation in some individuals; a skin test is recommended prior to use. Contact with eyes should be avoided.\r\n\r\nStorage: It is recommended that oils packaged in metal containers (for safe shipping), be transferred into dark glass containers to maintain freshness and attain maximum shelf life."
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