The short answer · Free thyroxine (Free T4)

Global Healing, Microsomal™ Ashwagandha, 2 fl oz (59.2 ml)
4.7· 92 ratings· $0.46/serving
Of 774 products scored for Free thyroxine (Free T4), Global Healing, Microsomal™ Ashwagandha, 2 fl oz (59.2 ml) ranks #1 with a DoseRank score of 36. Evidence is still thin for Ashwagandha.
Evidence is still thin for Ashwagandha.
Limited evidence · 1 ml
Adaptogenic root (Withania somnifera) from Ayurveda; KSM-66 and Sensoril are the best-studied extracts, with strongest evidence for lowering cortisol and stress-related fatigue.
Dose-range data is not available for this formula yet.
Limited trust signals so far for this listing. 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.
Questions
Global Healing, Microsomal™ Ashwagandha, 2 fl oz (59.2 ml) ranks #1 for Free thyroxine (Free T4) with a DoseRank score of 36. The score blends clinical strength, evidence, dose fit, trust signals and value across 774 products scored for this outcome.
Evidence is still thin for Ashwagandha.
Dose-range data is not available for this formula yet. DoseRank scores this product's dose fit at 40 out of 100.
Global Healing, Microsomal™ Ashwagandha, 2 fl oz (59.2 ml) works out at $0.46 per serving. $0.46 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.18 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.
Keep exploring
Retailer links may be affiliate links. Rankings and placement are never paid.
$0.46 per serving — mid price tier for this outcome. The cheapest ranked pick here is $0.18 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.
Ready?
The #1 pick is $0.46 a serving.Global Healing, Microsomal™ Ashwagandha, 2 fl oz (59.2 ml) — in stock at a tracked retailer.
View on iHerbA saved, shareable breakdown: your matched products, dose math, and interaction flags to discuss with a clinician.
Or take the 60-sec quiz →