The short answer · Gamma-glutamyl transferase (GGT)

Natural Factors, Herbal Factors®, Premium Milk Thistle, 160 mg, 60 Vegetarian Capsules
4.7· 1,436 ratings· $0.27/serving
Silybin Phytosome 320 mg — inside the studied 160-480 mg window
Of 15 products scored for Gamma-glutamyl transferase (GGT), Natural Factors, Herbal Factors®, Premium Milk Thistle, 160 mg, 60 Vegetarian Capsules ranks #1 with a DoseRank score of 84. Silybin Phytosome has moderate human evidence for this outcome.
Silybin Phytosome has moderate human evidence for this outcome.
Moderate evidence · 320 mg
Silybin, milk thistle's main active fraction, bound to phosphatidylcholine; the phytosome greatly boosts absorption over plain silymarin for liver-cell support.
Silybin Phytosome at 320 mg lands inside the studied 160-480 mg window.
Silybin Phytosome
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Natural Factors, Herbal Factors®, Premium Milk Thistle, 160 mg, 60 Vegetarian Capsules ranks #1 for Gamma-glutamyl transferase (GGT) with a DoseRank score of 84. The score blends clinical strength, evidence, dose fit, trust signals and value across 15 products scored for this outcome.
Silybin Phytosome has moderate human evidence for this outcome.
Silybin Phytosome at 320 mg lands inside the studied 160-480 mg window. DoseRank scores this product's dose fit at 78 out of 100.
Natural Factors, Herbal Factors®, Premium Milk Thistle, 160 mg, 60 Vegetarian Capsules works out at $0.27 per serving. $0.27 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.19 per serving.
No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.
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Retailer links may be affiliate links. Rankings and placement are never paid.
Studied window 160-480 mg · this pick 320 mg
Solid trust signals from buyer ratings, with room to grow. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
$0.27 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.19 per serving.
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
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The #1 pick is $0.27 a serving.Natural Factors, Herbal Factors®, Premium Milk Thistle, 160 mg, 60 Vegetarian Capsules — in stock at a tracked retailer.
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