L-Tryptophan and the conversion to 5 HTP are known precursors to enhance the neurotransmitter Serotonin, manufactured in the brain and GI tract. L-Tryptophan absorption can be boosted by supplementation with B group vitamins.
Tryptophan is an essential amino acid. It is the precursor to 5-hydroxytrypophan (5-HTP) which is the direct precursor to serotonin. Serotonin is important for mood and sleep; when it is deficient, this can lead to anxiety, depression, insomnia, and various other neuropsychological conditions. L-Tryptophan works in about 50% of insomnia cases.
Metro: 2-5 business days
Regional: 7-7 business days
Customers are eligible for a full refund for items that they wish to return within 30 days of purchase. The item must be accompanied by proof of purchase. This could be an email confirmation of your order or an store receipt.
Any faulty or damaged stock will be replaced at no charge if the return request is made within 14 days of purchase. No postage charges will be applied.
Please note that the customer is responsible for the postage cost for the items being returned for all other returns. Postage for the returned item will need to be tracked and require a signature on arrival.
We do not accept returns for any items that have been opened or for International deliveries.
Estimated Delivery Time Frame: 3-7 business days