From Plant to Bottle: The Science Behind dōTERRA’s Consistency

dōTERRA ensures that every bottle of essential oil is not only pure but also consistent—year after year, batch after batch. This is made possible through their unique approach called Co-Impact Sourcing® and a commitment to turning essential oil distillation from an art into a science.

At distillation facilities like Esseterre in Bulgaria (for lavender) or in Kenya (for geranium), dōTERRA follows precise, repeatable protocols—using the same amount of plant material, at the same temperature, pressure, and distillation time every single time.

Take lavender as an example:
Over the past eight years, the linalool content—a key active compound—has remained remarkably consistent, averaging around 33%, with only a 1% variation. That level of consistency is unmatched in the industry.

By using Co-Impact Sourced blending to minimize variation and applying scientific precision to the distillation process, dōTERRA is not just delivering pure essential oils—they're delivering some of the most consistent oils on the market.

This dedication to quality is further supported by dōTERRA’s Certified Pure Therapeutic Grade® (CPTG®) standard, which pairs rigorous internal testing with third-party verification to ensure each oil meets strict purity and potency requirements.

Each bottle includes a unique identifier, allowing you to easily access and verify its certificate of purity and quality on the Source to You website—so you always know exactly what you’re putting on or in your body.