What is the difference between Wellsprings 20-1 and Wellsprings Serenity?

Wellsprings 20-1 is the same formula as Wellsprings Serenity with the addition of natural Oestrogens.

 

Wellsprings 20-1 is the same formula as Wellsprings Serenity with the addition of two natural oestrogen hormones, Estriol 0.11%, Estradiol 0.01%. The natural progesterone content remains at 2.34%.

You should use either Serenity or 20-1 cream, not both together.

Should I use Wellsprings 20-1 instead of Wellsprings Serenity?