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Action - 5-alpha-reductase inhibitor

Action / Hormonal

Action / Male


Description: 5-alpha-reductase inhibitors prevent testosterone to change to dihydrotestosterone.

Supplements for Oral Use

  • Astaxanthin RatingRatingRating

    Astaxanthin is a 5-alpha-reductase inhibitor; blocks dihydrotestosterone production. Take 6-12 mg of astaxanthin daily, in divided doses, for many months.

  • Beta-sitosterol RatingRatingRating

    Beta-sitosterol is a 5-alpha-reductase inhibitor; blocks dihydrotestosterone production. Take 75-150 mg of beta-sitosterol daily, in divided doses, for many months.

  • Black cohosh RatingRatingRating

    Black cohosh is a 5-alpha-reductase inhibitor; blocks dihydrotestosterone production. Take 80-120 mg of standardized black cohosh extract daily, containing 2.5% of triterpene glycosides, in divided doses, for many months.

  • Pumpkin seed extract RatingRatingRating

    Pumpkin seed extract is a 5-alpha-reductase inhibitor; blocks dihydrotestosterone production. Take 250-500 mg of pumpkin seed extract daily, in divided doses, for many months.

  • Saw palmetto RatingRatingRating

    Saw palmetto is a 5-alpha-reductase inhibitor; blocks dihydrotestosterone production. Take 320 mg of standardized saw palmetto extract daily, containing 85-95% of fatty acids and sterols, in divided doses, for many months.

  • White willow bark RatingRatingRating

    White willow bark is a 5-alpha-reductase inhibitor; blocks dihydrotestosterone production. Take white willow bark extract daily, containing 120-240 mg of salicin, in divided doses, for many months.

  • Pumpkin seed RatingRating

    Pumpkin seed is a 5-alpha-reductase inhibitor; blocks dihydrotestosterone production. Take 10-20 g of pumpkin seed daily, in divided doses, for many months.

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