There is no single timeline. Some people notice changes in sleep or stress perception within 1–2 weeks, while others may need longer or may not feel a clear effect. Key factors are extract standardization, consistent use, dose, and lifestyle—especially sleep habits. Expecting an instant calming effect is usually unrealistic. If there is no benefit after 4–8 weeks, or if side effects occur, reassess instead of continuing blindly. For ongoing stress or sleep problems, the best results come from a multi-part plan, not one supplement.