Mastic gum, the resin of the Pistacia lentiscus tree grown on Chios, where it has been harvested by hand for centuries.

This is the Chia variety specifically, which is the designation that matters; mastic from elsewhere is a different material. The resin is collected in tears from the bark, and there is no industrial shortcut to it.

Hypoallergenic capsules from Allergy Research Group, more than 45 years into making botanicals for sensitive patients.

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