Clomiphene citrate might be worth considering. It is not a peptide but has a track record of raising both estrogen and testosterone. Check with your primary doctor.
I got some standard blood tests done the way researchers sometimes do. My free testosterone came back below the normal range for a woman. What steps can I take to correct it? I know peptides well but not much beyond that. Throw any ideas at me, natural, herbal, diet or otherwise.