Genestra offers an herbal supplement, Tonic-gen, which seeks to provide phytoembryotherapy support for the adrenal glands. There is a branch of phytotherapy called phytoembryotherapy that strictly uses the plants’ embryological tissues, such as the buds and young shoots. Tonic-gen is an herbal formula that may act as an adrenal tonic, using oak bud, giant sequoia young shoot and black currant bud extracts to provide support for the adrenal glands. Tonic-Gen is made with high-grade organic buds and young shoots through a gentle, eco-certified process, and is suitable for vegans.