Testo Boost X Review Colostrum This product claims increase your IGF-1 (Insulin Growth Factor). It's found in the mother's breast milk. Nonetheless doesn't a person with anything good because the IGF-1 increase is only good for the mother's your child. Which makes it useless for all of us.There will be a few completely natural ways in which you could promote more testosterone production in your body, without mentioning extremely overused by most 'steroids'.