1. Braun, Lesley and Cohen, Marc. Herb & Natural Supplements : an evidence-based guide. Vol 2. 4th edition. Elsevier 2015.
2. Pizzorno JE & Murray MT. Textbook of Natural Medicine. 5e edition. Elsevier, 2021.
3. P.J. Nathan et al. The neuropharmacology of L-theanine(N-ethyl-L-glutamine): a possible neuroprotective and cognitive enhancing agent. J Herb Pharmacother. 6:21-30 2006
4. Kimura K et al. L-Theanine reduces psychological and physiological stress responses. Biol Psychol. 2007 Jan;74(1):39-45.
5. Williams JL, Everett JM, D’Cunha NM, et al. The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review. Plant foods for human nutrition (Dordrecht, Netherlands). 2020;75(1):12-23.
6. Olloquequi J et al. A. Excitotoxicity in the pathogenesis of neurological and psychiatric disorders: Therapeutic implications. J. Psychopharmacol. 2018, 32, 265–275.
7. Kirkland AE, Sarlo GL, Holton KF. The Role of Magnesium in Neurological Disorders. Nutrients. 2018; 10(6):730.
8. Abbasi, M et al. The effect of magnesium supplementation on primary insomnia in elderly: a double-blind placebo-controlled clinical trial. J Res Med Sci. 17 (12):1161-1169 2012
9. Maslov LN et al. [Cardioprotective and antiarrhythmic properties of Rhodiolae roseae preparations]. Eksp Klin Farmakol. 2007; 70(5): 59-67.
10. Maslova LV et al. [The cardioprotective and antiadrenergic activity of an extract of Rhodiola rosea in stress]. Eksp Klin Farmakol. 1994; 57(6): 61-63.
11. Hung SK, et al. The effectiveness and efficacy of Rhodiola rosea L.: A systematic review of randomized clinical trials. Phytomedicine. 2009; 18(4): 235-244.
12. Mattioli L et al. Effects of Rhodiola rosea L. extract on behavioural and physiological alterations induced by chronic mild stress in female rats. J Psychopharmacol. 2009; 23(2): 130-142.
13. Panossian A et al. Rosenroot (Rhodiola rosea): Traditional use, chemical composition, pharmacology and clinical efficacy. Phytomedicine. 2010; 17(7): 481-493.
14. Singh G et al. Biological activities of Withania somnifera. Ann Biol Res. 2010; 1(3): 56-63.
15. Jahanbakhsh SP, Manteghi AA, Emami SA, Mahyari S, et al. Evaluation of the efficacy of withania somnifera (ashwagandha) root extract in patients with obsessive-compulsive disorder: a randomized double-blind placebo-controlled trial. Complement Ther Med 2016 Aug;27:25-9.
16. Chandrasekhar K et al. A Prospective, Randomized Double-Blind, Placebo-Controlled Study of Safety and Efficacy of a High-Concentration Full-Spectrum Extract of Ashwagandha Root in Reducing Stress and Anxiety in Adults. Indian J Psychol Med. 2012 Jul-Sep; 34(3): 255–262.
17. Khan B et al. Augmentation and proliferation of T lymphocytes and Th-1 cytokines by Withania somnifera in stressed mice. Int Immunopharmacol. 2006; 6(9): 1394-1403.
18. Malik F et al. A standardized root extract of Withania somnifera and its major constituent withanolide-A elicit humoral and cell-mediated immune responses by up regulation of Th1-dominant polarization in BALB/c mice. Life Sci. 2007; 80(16): 1525-1538.
19. Szopa A, Ekiert R, Ekiert H. Current knowledge of Schisandra chinensis (Turcz.) Baill. (Chinese magnolia vine) as a medicinal plant species: a review on the bioactive components, pharmacological properties, analytical and biotechnological studies. Phytochem Rev. 2017;16(2):195-218.
20. Zhang M, Xu L, Yang H. Schisandra chinensis Fructus and Its Active Ingredients as Promising Resources for the Treatment of Neurological Diseases. Int J Mol Sci. Jul 6 2018;19(7).
21. Sowndhararajan K, Deepa P, Kim M, Park SJ, Kim S. An overview of neuroprotective and cognitive enhancement properties of lignans from Schisandra chinensis. Biomed Pharmacother. Jan 2018;97:958-968.
22. Chen WW, He RR, Li YF, Li SB, Tsoi B, Kurihara H. Pharmacological studies on the anxiolytic effect of standardized Schisandra lignans extract on restraint-stressed mice. Phytomedicine. Oct 15 2011;18(13):1144-1147.
23. Xia N, Li J, Wang H, Wang J, Wang Y. Schisandra chinensis and Rhodiola rosea exert an anti-stress effect on the HPA axis and reduce hypothalamic c-Fos expression in rats subjected to repeated stress. Exp Ther Med. Jan 2016;11(1):353-359.
24. Yan T, Xu M, Wan S, et al. Schisandra chinensis produces the antidepressant-like effects in repeated corticosterone-induced mice via the BDNF/TrkB/CREB signaling pathway. Psychiatry Res. Sep 30 2016;243:135-142.
25. Natural Medicines website. Accessed at naturalmedicines.therapeuticresearch.com on September 29, 2020. [Database subscription].