L-tryptophan is one of the 9 essential amino acids the human body cannot make itself — it must come from diet or supplementation every day. It is the direct precursor of serotonin (the “feel-good” hormone) and melatonin (the sleep hormone), two neurotransmitters fundamental to emotional balance and restful sleep. Modern life — chronic stress, unbalanced diets, shifted schedules — can easily compromise a sufficient intake, which is where supplementation with Be-Life Tryptophan naturally fits into a wellness routine.

As a serotonin precursor, tryptophan plays a central role in regulating mood and emotions, and serotonin modulates the neural circuits involved in managing stress and anxiety. Melatonin, produced from serotonin itself, is the cornerstone of the circadian rhythm — by supporting the body’s own natural melatonin production, tryptophan helps with faster, deeper, more restorative sleep, offering a gentler and more physiological form of support than taking melatonin directly, since the body regulates its own production. Serotonin is also directly involved in appetite control and satiety, and tryptophan can help support the body’s response to stress-related sugar cravings.

The conversion chain runs from L-tryptophan to 5-HTP (via tryptophan hydroxylase, which needs iron and vitamin B6 as cofactors), then to serotonin (via aromatic amino-acid decarboxylase, aided by vitamin B6). As daylight fades, part of this serotonin is converted to melatonin by the pineal gland, triggering the sleep signal — which is why tryptophan can support both daytime mood and night-time sleep.

Be-Life is a Belgian laboratory known for the quality of its formulations and its commitment to ingredient purity. Each capsule delivers 200 mg of pure L-tryptophan, allowing fine-tuned dosing from 200 mg to 800 mg a day depending on individual needs. The 90-capsule pack covers a 1–3 month course, in a plant-based (cellulose) capsule shell, free from gluten, lactose and yeast.

Natural dietary sources of tryptophan include poultry (turkey, chicken), fish (salmon, tuna, cod), eggs (especially the yolk), legumes (lentils, beans, chickpeas), nuts and seeds (cashews, almonds, pumpkin and sesame seeds), dairy (cheese, yoghurt) and dark chocolate (70%+). Dietary tryptophan competes with other amino acids to cross the blood-brain barrier, which is why taking the capsules away from meals — as recommended — favours better absorption into the brain.

Dose: 1 to 4 capsules a day, away from meals — in the morning for mood support, or in the evening for sleep. A course of 1 to 3 months is recommended; sleep effects can appear within the first few days, while mood and stress benefits usually need 2–4 weeks of regular use.

Do not combine with antidepressants (MAOIs, SSRIs) without medical advice. Do not combine with 5-HTP (griffonia) without professional supervision. Not recommended for pregnant or breastfeeding women. If on medication, consult your doctor or pharmacist. Keep out of reach of children.

What’s the difference between tryptophan and 5-HTP?

5-HTP (from griffonia) sits between tryptophan and serotonin in the biosynthesis chain. Tryptophan is the more upstream precursor, offering gentler, more gradual regulation as the body manages the conversion itself, with fewer risks of drug interactions than 5-HTP.

Can I take tryptophan together with melatonin?

Generally best avoided without professional advice, since tryptophan already stimulates natural melatonin production — adding exogenous melatonin could lead to an excess. Tryptophan’s advantage is physiological self-regulation.

How long does it take to work?

Sleep effects can be felt within the first few days. For mood and stress, allow 2–4 weeks of regular use; a 1–3 month course is recommended for lasting results.

Herba Barona is an independent specialist supplement shop in the heart of Paris — established in 2006. What you order is genuinely on our shelves: we ship from our own stock, with no dropshipping and no long waits.

Visit us at 10 rue Théophile Roussel, Paris 12 — or use Click & Collect and pick up your order in-store. We also deliver across France and Europe. Friendly, expert advice in English from our team.

Where is the shop?

Herba Barona is at 10 rue Théophile Roussel, 75012 Paris — a two-minute walk from Ledru-Rollin (line 8), close to Bastille. Open Tuesday to Saturday, 9:30 am–6:30 pm.

Can I order online or collect in store?

Yes. We ship across France and Europe under the same conditions as our French store, or choose Click & Collect to pick up your order for free at our Paris shop.