Can I take Confiance?

Before I was diagnosed with bc I was taking Menopace to help with the symptoms of the menopause. As my bc was oestrogen receptive I stopped taking them because they contain soy isoflavones and there seems to be some uncertainty about whether they are ok for bc patients to take.

Many of my friends take Confiance (a vitamin and mineral supplement). I was thinking of trying them but does anyone know if they are ok to take if you have had oestrogen receptive bc?

Thanks for your help
Maude xx