L-tryptophan (L-Tryp-Pro)
(US) $17.49


L-tryptophan: the natural supplement that lifts your mood and treats depression

L-Tryptophan is a leading, naturally derived supplement that helps our bodies utilise the essential amino acid and natural anti-depressant tryptophan. Found in a variety of foods, tryptophan helps create serotonin – the neurotransmitter that’s responsible for our sense of well-being. Tryptophan, or L-Tryptophan as it’s also known, offers positive benefits across a whole range of body and mind functions, too.

As one of the 20 standard amino acids and also an essential amino acid, tryptophan is vital to our diet. Quite simply, we cannot function without it. Tryptophan food sources are numerous and varied, but it can sometimes be difficult for the body to process this valuable amino acid effectively.

Tryptophan can’t be made naturally by our bodies so we need to get it from other sources, like food or an L-Tryptophan supplement. It’s an essential building block, helping to convert the proteins behind our key bodily and mental functions, while L-Tryptophan also acts as a precursor to serotonin production.

Regulating key functions such as appetite, sleep and positive moods, there are also a number of wider L-Tryptophan benefits. It can lessen anxiety and help with ADHD (Attention Deficit Hyperactivity Disorder). And research has also indicated that L-Tryptophan may help people to quit smoking, and with specific conditions such as premenstrual dysphoric disorder and seasonal affective disorder, or SAD. SAD is triggered by a lack of sunlight in the winter months, which can darken our moods and lead to depression.

Tryptophan food sources Vs an L-tryptophan supplement

Good tryptophan food sources include chocolate, oats, fish, meat, sesame, chickpeas, corn, peanuts, rice, bananas, milk, dates, and a host of everyday foods. However, many of the foods that contain this key amino acid can have tryptophan’s potency diminished severely by cooking and processing. An L-Tryptophan supplement can help here.

As we’ve discovered, it’s essential that we get enough tryptophan to ensure we function properly. Having diminished tryptophan levels has been linked to lower general brain activity, while there are a lot of studies demonstrating that low serotonin levels are directly related to depression.

As tryptophan plays a key role in the creation of serotonin, using an L-Tryptophan depression remedy can help treat one of the world’s biggest medical conditions. It’s estimated that between 10 and 14 million people are medically depressed in any given year – and that’s in the US alone.

With l-tryptophan depression is tackled

As L-Tryptophan helps increase serotonin levels, using an L-Tryptophan depression treatment can be beneficial. Although there are plenty of tryptophan food sources that help us produce the body’s pleasure and mood enhancer serotonin, if food and diet are an issue then tryptophan depression remedies can provide a valuable serotonin boost.

With l-tryptophan sleep is deep and rejuvenating

An L-Tryptophan dosage helps production of melatonin -a natural hormone that regulates our sleep and waking patterns. L-Tryptophan does this by not only providing the stimulus for serotonin production but also melatonin production – so we get more/better quality sleep. With L-Tryptophan sleep is better and so our mood is positively affected too. And enhanced sleep comes with the reassurance that L-Tryptophan side effects – if experienced at all – are minimal.

L-tryptophan vs 5-htp

Both L-Tryptophan and 5HTP help promote the natural production of serotonin. The key difference in L-Tryptophan v’s 5HTP is in the source of their main ingredient. The tryptophan in L-Tryptophan is derived from plants, whereas 5HTP is derived from seeds, 5HTP is also known as hydroxytryptophan 5HTP, and a natural precursor to serotonin. In fact, the body metabolizes tryptophan into hydroxytryptophan 5HTP which is then converted into serotonin.

Our L-Tryptophan is of the highest quality -it’s made in Germany and capsulated in the USA, ensuring the highest purity level, which ultimately means L-Tryptophan side effects are minimal. With L-Tryptophan sleep and mood are enhanced; it’s a natural feel-good serotonin facilitator and a safe way to stay feeling positive.


Avoid combining L-Tryptophan with other serotonin increasing agents such as 5HTP or SSRI drugs, such as Prozac, without your physician’s advice.


Frequently Asked Questions About L-Tryptophan

Disclaimer: Please note that only your own physician can determine your precise needs, but in order to give you some information these answers are based upon the ‘average person’ and clinical / published results.

What is the purity percentage of your L-Tryptophan?

It is a pharmaceutical grade product of 99.5% purity or better.

Is your L-Tryptophan USP Pharmaceutical Grade?

Our tryptophan is made in Germany and encapsulated in the USA, all to international ISO standards.


Feel on top form with L-Tryptophan -the natural and popular antidepressant

Impossible to function without it, tryptophan is responsible for key cell building mechanisms in our entire body and serotonin production for our brain.

Although tryptophan is found in many foods, getting significant amounts into our body can prove difficult. Actions like the processing of food and pollution, or the way we prepare food, means that the power of this vital amino acid can be lost.

L-Tryptophan is so highly recommended for anxiety & stress due to its role in the production of the ‘feel good’ brain neurotransmitter, serotonin.

It’s also known to greatly assist with sleep disorders and is even used as a compulsive disorder treatment. Other key benefits of an L-Tryptophan supplement are that it can help with weight loss or be used alongside another weight loss treatment. Conditions such as overeating can be linked to serotonin production and how happy we feel, so as the supplement can lift our mood, then weight loss can occur more easily.

It’s easy to get on top of anxiety and improve general health with an L-Tryptophan supplement – it’s the natural way to feel uplifted in body and mind.

A precursor to serotonin

Pack Size: 50x 500mg capsules

Description: L-Tryptophan is one of the eight essential aminoacids that is often lacking in the modern diet.

Directions: Take 1 or 2 capsules, one to three times a day, or before bedtime. Avoid use with other antidepressants.

Disclaimer: This product and its statements have not been evaluated by the FDA. This product is not intended to treat, cure or prevent any disease.

Supplement Facts:

Amount Per Serving % DV
L-Tryptophan 500 mg *
% * Daily value not established

Other ingredients: Gelatin capsule, calcium phosphate, bibasic magnesium stearate, silica.

Note: Keep out of reach of children. Protect from heat, light, and moisture. Not for use by pregnant or lactating women. Do not use after expiration date. always follw the advice of your health professional.

Formulated and distributed by Profound Products, PO Box 6, Sark GY9 0SB, Great Britain www.profound-products.com
The above information is the translation of the manufacturer’s insert. It is provided under the supplying company’s terms and conditions and should not replace the advice of your personal physician.