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Neurosteroids and Memory Function PREG was initially thought of only as a precursor for other steroids and not as an active modulator
Crystal structures have been deposited in the RCSB Protein Data Bank (PDB IDs: 2XPD, 9F5V, 3ZRD, 9F64, 9F65)
FDA has flagged bulk substances marketed as research grade or research use only as heightened regulatory and quality risk
Other Ingredients: Cellulose, magnesium stearate (vegetable source) and silicon dioxide
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