Our ingredients and formula are research backed.

1. Vašková et al; The Importance of Natural Antioxidants in Female Reproduction; 2023.
2. Al Mulla et al; Role of Antioxidants in Female Fertility; 2018.
3. Meng et al; Influence of Vitamin D supplementation on reproductive outcomes of infertile patients: a systematic review and meta-analysis; 2023.
4. Várbíró et al; Effects of Vitamin D on Fertility, Pregnancy and Polycystic Ovary Syndrome—A Review; 2022.
5. Lerchbaum et al; Vitamin D and fertility: a systematic review; 2012.
6. Paffoni et al; Vitamin D deficiency and infertility: insights from in vitro fertilization cycles; 2014.
7. Wu et al; The effect of oral vitamin E supplementation on infertile women: a systematic review and meta-analysis; 2021.
8. Tsuji et al; Effects of Mild and Severe Vitamin B1 Deficiencies on the Meiotic Maturation of Mice Oocytes; 2017
9. Zhan et al; Choline supplementation influences ovarian follicular development; 2021.
10. Shi et al; NAD Deficiency, Congenital Malformations, and Niacin Supplementation; 2017.
11. Wang et al; Niacin Inhibits Apoptosis and Rescues Premature Ovarian Failure; 2018.
12. Ronnenberg et al; Preconception B-vitamin and homocysteine status, conception, and early pregnancy loss; 2007.
13. Grajecki D, Zyriax B-C, Buhling K. The effect of micronutrient supplements on female fertility: a systematic review. Arch Gynecol Obstet. 2012;285:1463–1471.
14. Bennett; Vitamin B12 deficiency, infertility and recurrent fetal loss; 2001
15. Candito et al; Clinical B12 deficiency in one case of recurrent spontaneous pregnancy loss; 2003
16. Gaskins et al; Association between serum folate and vitamin B-12 and outcomes of assisted reproductive technologies; 2015.
17. Lima et al; Relation between Selenium and Female Fertility: A Systematic Review; 2022
18. Ceko et al; X-Ray fluorescence imaging and other analyses identify selenium and GPX1 as important in female reproductive function; 2014.
19. Garner et al; Role of zinc in female reproduction; 2021
20. www.quatrefolic.com
21. Stanhiser et al; Omega-3 fatty acid supplementation and fecundability; 2022
22. Abodi et al; Omega-3 fatty acids dietary intake for oocyte quality in women undergoing assisted reproductive techniques: A systematic review; 2022
23. Nehra et al; Prolonging the female reproductive lifespan and improving egg quality with dietary omega-3 fatty acids; 2012
24. Bodis et al; The Role of L-Arginine-NO System in Female Reproduction: A Narrative Review; 2022
25. So et al; Beneficial effect of l-arginine in women using assisted reproductive technologies: a small-scale randomized controlled trial; 2020
26. Florou et al; Does coenzyme Q10 supplementation improve fertility outcomes in women undergoing assisted reproductive technology procedures? A systematic review and meta-analysis of randomized-controlled trials; 2020
27. Xu et al; Pretreatment with coenzyme Q10 improves ovarian response and embryo quality in low-prognosis young women with decreased ovarian reserve: a randomized controlled trial; 2018
28. Rafieian-Kopaei et al; Systematic Review of Premenstrual, Postmenstrual and Infertility Disorders of Vitex Agnus Castus; 2017
29. Bokelman; Medicinal Herbs in Primary Care; 2021
30. Pizzorno & Murray; Textbook of Natural Medicine 5^th edition; 2020
31. Vlaisavljevic et al; Alchemilla vulgaris agg. (Lady's mantle) from central Balkan: antioxidant, anticancer and enzyme inhibition properties; 2019
32. https://www.sciencedirect.com/topics/immunology-and-microbiology/alchemilla
33. https://www.sciencedirect.com/book/9780443072772/botanical-medicine-for-womens-health
34. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3614644/38
35. Agarwal A, et al. Role of L-carnitine in female infertility; 2018
36. Kitano Y, et al. Gynecol Endocrinol. 2018. 34(8): p. 684-688.
37. Kim MK, et al. J Obstet Gynaecol Res. 2018. 44(11): p. 2059-2066.
38. Antoine E et al; A Patented Blend Consisting of a Combination of Vitex agnus-castus Extract, Lepidium meyenii (Maca) Extract and Active Folate, a Nutritional Supplement for Improving Fertility in Women. Maedica (Buchar). 2019; 14(3):274-279.   
39. www.cdc.gov