The potency of various chamomile teas varies, with some containing significantly more chamomile than others. The more potent teas are also more likely to cause side effects in people who are vulnerable to them. Consequently, it is safest to start with a low dosage and work up to larger doses slowly.

Chamomile contains chemicals called flavonoids. These flavonoids are a type of nutrient present in many plants, and they play a significant role in chamomile’s medicinal effects.