What does Elderberry Plus Syrup do? Elderberry juice, manuka honey 14+, trikatu and thyme, along with the other herbs in this syrup, have long been used to help support seasonal health. This concentrated broad-spectrum syrup contains the highest organic grade, sustainably cultivated herbs, carefully selected to bring you the full potential of nature's goodness. What does Elderberry Plus Syrup do? Elderberry juice, manuka honey 14+, trikatu and thyme, along with the other herbs in this syrup, have long been used to help support seasonal health. This concentrated broad-spectrum syrup contains the highest organic grade, sustainably cultivated herbs, carefully selected to bring you the full potential of nature's goodness.