Zein Pharma L-Tryptophan, 500mg - 45 vcaps
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£12.95
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£12.95
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15%
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£15.24
84 Reviews
Did you know that approximately 90% of serotonin is produced in the gut? Our high-purity L-Tryptophan, derived from natural, plant-based fermentation, is an essential amino acid of premium quality.
£12.95
Sale price
£12.95
Save
15%
Regular price
£15.24
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Order within , for delivery by tomorrow, April 27.
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