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Side-by-side comparison of 2 supplements
250-500mg daily (varies by form)
Morning or with meals, Alpha-GPC before cognitive tasks
Alpha-GPC or CDP-Choline (Citicoline)
100-200mg daily
Morning with food, Can be divided into two doses
Pycnogenol (standardized extract)
2-4 weeks
4-8 weeks
1-2 weeks
4-8 weeks
6-12 weeks
4-8 weeks
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