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The Collection

Three foundations.

Each ROOK formula addresses a foundational nutritional need using the most bioavailable, clinically-studied ingredient form available. No proprietary blends. No filler ingredients. No compromise.

At a Glance

Compare formulas.

FormulaKey IngredientBranded FormServing SizeDosageCount
Ferrochel® Iron BisglycinateFerrochel®1 capsule25mg elemental iron120 Capsules
TRAACS® Magnesium Bisglycinate ChelateTRAACS®2 capsules200mg elemental magnesium120 Capsules
Free-Form L-GlycineUSP Grade3 capsules3g (3,000mg)120 Capsules
Early Access — Summer 2026

Be first to the board.

ROOK launches on Amazon in Summer 2026. Join the early access list for launch pricing, ingredient deep-dives, and a complimentary copy of our Bioavailability Guide.

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