• OCTI Nutrition 5-HTP supplement bottle on a white background
  • Bottle of OCTI Nutrition 5-HTP supplement on a white surface with a window and plant in the background.
  • Supplement bottle labeled 'Octi Nutrition' with text highlighting benefits on a white background
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5 HTP with L-Tryptophan

5 HTP with L-Tryptophan

5-HTP from griffonia seed + L-tryptophan + hops · with B6, B12 & magnesium · 90 capsules, 90 days

£18.50
£18.50
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£0.20 a day · one bottle lasts 90 days
  • 30-day guarantee
  • Same-day dispatch
  • Made in the UK
  • Mood — B6 and B12 contribute to normal psychological function
  • Sleep — magnesium contributes to the reduction of tiredness and fatigue
  • Nerves — B6, B12 and magnesium contribute to normal functioning of the nervous system
  • Naturally sourced 5-HTP from griffonia simplicifolia seed, with l-tryptophan and hop flower extract
  • With vitamins B6 and B12, which contribute to normal psychological function
  • Magnesium contributes to normal psychological function and to the reduction of tiredness and fatigue
  • 90 capsules — a 90-day supply at one capsule a day
  • Easy-to-swallow vegetable capsule
  • Free from gluten, wheat, lactose, soy and added sugar
  • Suitable for vegans and vegetarians

What is 5-HTP?

5-HTP (5-hydroxytryptophan) is made naturally in the body from the essential amino acid l-tryptophan. Our bodies don’t produce l-tryptophan, so we obtain it from the diet. The Octi Nutrition 5-HTP formula combines naturally sourced 5-HTP derived from the griffonia simplicifolia plant with hop flower extract and l-tryptophan, alongside vitamins B6 and B12 and magnesium. It contains no artificial preservatives and is free from gluten, wheat, lactose, soy and added sugar, in a vegan-friendly vegetable capsule.

What’s in it and why

Vitamin B6 and vitamin B12 contribute to normal psychological function, to normal functioning of the nervous system and to the reduction of tiredness and fatigue. Magnesium contributes to normal psychological function, to normal muscle function and to the reduction of tiredness and fatigue. Every amount is printed on the label — no proprietary blends.

How do I take it, and is it suitable for everyone?

Take one capsule a day. Each bottle contains 90 capsules, so that’s a 90-day supply. Not suitable for use during pregnancy or while breastfeeding. Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle. If you are taking medication or have a health condition, consult your GP before use.

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Who it's for

For people who lie awake with a busy head.

One capsule in the evening, with or after food. One bottle is three months. Give it four weeks before you judge it.

What's inside · per 1 capsule

Griffonia seed extract (20% 5-HTP)125 mg
providing 5-HTP25 mg
L-Tryptophan105 mg
Hop flower extract100 mg
Magnesium citrate100 mg
Vitamin B61.7 mg · 121% NRV
Vitamin B122.5 µg · 100% NRV
Also contains: microcrystalline cellulose (bulking agent), magnesium stearate and silicon dioxide (anti-caking agents), vegetable capsule (HPMC).
  • Vegan
  • Gluten-free
  • Allergen-free
  • No proprietary blends
  • Every amount stated
  • Made in the UK

Why it's a gentle dose, honestly

This is 25mg of 5-HTP a day, not the 100–200mg you'll see in some products. We pair it with L-tryptophan (the step before 5-HTP), hops, and the B6, B12 and magnesium the pathway relies on, so it supports the whole route rather than flooding one step. It's built for every night for three months, not a sledgehammer for one. Every amount is on the label so you can judge it for yourself.

How we compare

Octi£8 generic£22 premium
5-HTP per day25mg100mg100mg
L-tryptophan + hopsYesNoNo
Co-factorsB6, B12, magnesiumNoneB6
Amounts statedEvery one5-HTP onlyMostly
Price per day21p~13p~37p
Money-back guarantee30 daysNo30 days

What to expect

Week 1

One capsule in the evening with food. Same time every day.

Weeks 2–4

The routine's established. This is when most people decide whether it's doing something for them.

Day 30

Judge it. Not for you? Use the guarantee — even though the bottle lasts three months.

A note from Gareth, founder

I built Octi in Edinburgh because I was tired of guessing what was actually in the capsule. Every amount is on the label. If it's not right for you, email me and I'll sort it.

Questions

When should I take it?
One capsule in the evening with a meal and water. Most people take it an hour or so before bed.
Why L-tryptophan as well as 5-HTP?
5-HTP is the direct precursor to serotonin; L-tryptophan is the step before it. Including both, with B6, B12 and magnesium, supports the whole pathway rather than one link in it.
Why only 25mg of 5-HTP?
It's a gentle, daily dose designed to be taken for three months without side effects, alongside tryptophan and hops. If you've used high-dose 5-HTP before and want that, this isn't it.
Can I take it with antidepressants or other medication?
Not without speaking to your GP or pharmacist first. 5-HTP should not be combined with SSRIs, MAOIs or other medicines that act on serotonin. If you take any prescription medication, check before you start.
Is it suitable during pregnancy?
No. Not for use during pregnancy or while breastfeeding.
How long before I notice anything?
Some people notice calmer evenings within a week; for others it takes three to four weeks. Take it daily and judge it at a month.
How do I cancel a subscription?
From your account page, any time, no minimum term. Or reply to any of our emails and a person will do it for you.

Food supplements are not a substitute for a varied, balanced diet and a healthy lifestyle. If you are pregnant, breastfeeding, taking medication or have a health condition, consult your GP before use.