The active ingredients in DuoVida products were chosen because their role in supporting fertility and hormonal balance has been scientifically studied and their health effects officially assessed in the European Union. Below we explain what the main active ingredients do in the body.
All DuoVida food supplements are made by a certified European manufacturer that follows strict quality and safety standards (GMP, ISO, HACCP).
DuoVida Balance is intended for women preparing for pregnancy. We highlight seven active ingredients whose effects on hormonal balance, fertility and cell protection are authorised in the EU.
Folate is one of the most important active ingredients in the formula, as it takes part in cell division. The body's folate stores build up gradually, so it is worth thinking about early.
Authorised EU claimFolate contributes to maternal tissue growth during pregnancy and to normal cell division (Regulation (EU) No 432/2012).
Background: Wilson R.D. et al. (2021). Prev Med Rep. 24:101617. doi:10.1016/j.pmedr.2021.101617
Zinc is one of the few active ingredients with an EU-authorised direct link to fertility and reproduction. Zinc also contributes to normal cell division and to the protection of cells from oxidative stress.
Authorised EU claimZinc contributes to normal fertility and reproduction, to normal cell division and to the protection of cells from oxidative stress (Regulation (EU) No 432/2012).
Background: Garner K.H. et al. (2021). Biol Reprod. 104(5):976-994. doi:10.1093/biolre/ioab023
Vitamin B6 is one of the active ingredients whose role in hormonal activity is authorised in the EU. Its active form, pyridoxal phosphate, takes part in many enzymatic processes in the body.
Authorised EU claimVitamin B6 contributes to the regulation of hormonal activity and to the reduction of tiredness and fatigue (Regulation (EU) No 432/2012).
Background: based on the EFSA scientific opinion.
Pantothenic acid is less well known but important where hormones are concerned. It is the precursor of coenzyme A, which takes part in the synthesis of steroid hormones.
Authorised EU claimPantothenic acid contributes to normal synthesis and metabolism of steroid hormones, vitamin D and some neurotransmitters (Regulation (EU) No 432/2012).
Background: Freese R. et al. (2023). Food Nutr Res. 67.
Selenium is an important active ingredient for normal thyroid function and is also part of antioxidant selenoproteins.
Authorised EU claimSelenium contributes to normal thyroid function and to the protection of cells from oxidative stress (Regulation (EU) No 432/2012).
Background: Qazi I.H. et al. (2018). Molecules. 23(12):3053. doi:10.3390/molecules23123053
Iodine supports normal thyroid function, working hand in hand with selenium in this role.
Authorised EU claimIodine contributes to normal thyroid function and to the normal production of thyroid hormones (Regulation (EU) No 432/2012).
Background: Feldt-Rasmussen U. (2025). Thyroid Res. 18:22. doi:10.1186/s13044-025-00235-w
Cells are sensitive to oxidative stress, and vitamin E helps protect them from it.
Authorised EU claimVitamin E contributes to the protection of cells from oxidative stress (Regulation (EU) No 432/2012).
Background: Vašková J. et al. (2023). Antioxidants. 12(4):907. doi:10.3390/antiox12040907
In addition to the ingredients above, Balance contains chasteberry (Vitex agnus-castus), maca root, ashwagandha, red clover and hops. These plants have traditionally been used to support women's wellbeing. The EU has not yet authorised any health claims for them, so we make no specific promises about them, but we have included them in the formula deliberately.
DuoVida Vital is intended for men preparing to have a child. We highlight the active ingredients whose role in sperm formation, fertility and cell protection is authorised in the EU.
Zinc is an important active ingredient in male fertility, with several roles authorised in the EU.
Authorised EU claimZinc contributes to normal fertility and reproduction and to the maintenance of normal testosterone levels in the blood (Regulation (EU) No 432/2012).
Background: Zhao J. et al. (2016). Sci Rep. 6:22386. doi:10.1038/srep22386
Selenium is one of the active ingredients whose role in sperm formation and cell protection is authorised in the EU.
Authorised EU claimSelenium contributes to normal spermatogenesis and to the protection of cells from oxidative stress (Regulation (EU) No 432/2012).
Background: Zečević N. et al. (2025). Front Nutr. 12:1702028. doi:10.3389/fnut.2025.1702028
Vitamin B12 takes part in energy metabolism and cell division, both continuous processes in the body.
Authorised EU claimVitamin B12 contributes to normal energy-yielding metabolism and to normal cell division (Regulation (EU) No 432/2012).
Background: Bouhadana D. et al. (2025). Antioxidants. 14(8):1013. doi:10.3390/antiox14081013
Folate is not only important for women. It contributes to cell division, which is a continuous process in the body.
Authorised EU claimFolate contributes to normal cell division (Regulation (EU) No 432/2012).
Background: Bouhadana D. et al. (2025). Antioxidants. 14(8):1013. doi:10.3390/antiox14081013
Cells are sensitive to oxidative stress, and vitamin E helps protect them from it.
Authorised EU claimVitamin E contributes to the protection of cells from oxidative stress (Regulation (EU) No 432/2012).
Background: Bouhadana D. et al. (2025). Antioxidants. 14(8):1013. doi:10.3390/antiox14081013
Vitamin C complements antioxidant protection and helps keep vitamin E active.
Authorised EU claimVitamin C contributes to the protection of cells from oxidative stress and to the regeneration of the reduced form of vitamin E (Regulation (EU) No 432/2012).
Background: Bouhadana D. et al. (2025). Antioxidants. 14(8):1013. doi:10.3390/antiox14081013
In addition to the ingredients above, Vital also contains L-carnitine, L-arginine, coenzyme Q10, maca root and Korean ginseng. These ingredients are widely used in men's fertility supplements. The EU has not yet authorised any health claims for them, so we make no specific promises about them, but we have included them in the formula deliberately.
The health claims for the vitamins and minerals in DuoVida products correspond to the list of authorised health claims in the Annex to Commission Regulation (EU) No 432/2012. The use of health claims is governed by Regulation (EC) No 1924/2006 of the European Parliament and of the Council. The cited scientific articles are provided as background and do not replace the legal basis of the claims.
Balance for her, Vital for him. Better value together as a set.
30 tablets. 23 vitamins and minerals in full doses.
30 capsules. Zinc, selenium, folate, B12 and vitamins C and E.
A food supplement is not a substitute for a varied, balanced diet and a healthy lifestyle.
