5-HTP Plus Formula


Helps to promote healthy mood balance.

Supplier: Douglas Laboratories®
Quantity: 60 Vegetarian Capsules

Available on backorder

SKU: 85073-60HYC-C Categories: , Tag:

5-HTP Plus Formula capsules contain 75 mg of natural L-5-hydroxytryptophan (5-HTP) extracted from seeds of the Griffonia simplicifolia plant. 5-HTP helps to promote healthy mood balance.

Serotonin, an important brain neurotransmitter, is key in the regulation of mood. Serotonin is unable to cross the blood-brain barrier and is therefore synthesized in the brain. Tryptophan, an essential amino acid, is a precursor for the synthesis of serotonin. Tryptophan crosses the blood-brain barrier and is converted to L-5-hydroxytryptophan, which in turn is converted into serotonin. As a metabolic amino acid intermediate in the conversion of tryptophan into serotonin, 5-HTP can also serve as a precursor of serotonin. 5-HTP crosses into the brain more readily than tryptophan as it does so without competition for uptake. 5-HTP exerts its beneficiary effects to promote healthy mood balance by increasing serotonin production, which in turn decreases excitatory hormones in the brain including dopamine and noradrenaline.

Temporarily promotes healthy mood balance

Non-Medicinal Ingredients:
Cellulose, Hypromellose (capsule), Silica

L-5-HTP (L-5-hydroxytryptophan from Griffonia simplicifolia seed) - 75 mg
L-Tyrosine - 25 mg
L-Glutamine - 25 mg
Vitamin B6 - 5.3 mg

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Additional information


60 Vegetarian Capsules


L-5-HTP, L-Tyrosine, L-Glutamine, Vitamin B6

Non-Medicinal Ingredients

Cellulose, Hypromellose (capsule), Silica


Adults: Take 1 capsule 1-3 times daily with food or as directed by your healthcare practitioner. To minimize the risk of gastrointestinal side effects, start dosing at 1 capsule twice per day and slowly increase to 1 capsule thrice daily. Use for a minimum of 1 week to see beneficial effects. Consult your healthcare practitioner for use beyond 1 year.


Do not use if you have scleroderma. Consult your healthcare practitioner prior to use if you are pregnant, breastfeeding, on a low protein diet, or taking carbidopa or drugs/supplements with serotonergic activity. These may include, but are not limited to, L-tryptophan, S-adenosylmethionine (SAMe), St. John's wort, antidepressants, pain killers, over the counter cough and cold medication containing dextromethorphan, anti-nausea medication and anti-migraine medication. Consult your healthcare practitioner if symptoms
persist or worsen. Discontinue use and consult your healthcare practitioner if you show signs of weakness, oral ulcers, or abdominal pain accompanied by severe muscle pain, or if you experience skin changes. Some people may experience drowsiness, diarrhoea, nausea, vomiting and abdominal pain.
Exercise caution if operating heavy machinery, driving a motor vehicle or involved in activities requiring mental alertness. Do not use if the seal is broken or missing. Store in a cool, dry place.