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Nutra Formulations
Contentsia - Mahoney
  • Magnolia Officinalis100 mg
  • Rhodiola Rosea100 mg
  • Phellodendron Amurense100 mg
  • St. John’s Wort75 mg
  • L-Theanine25 mg
  • Format60 Capsules
Contentsia · 60 Capsules · Sleep & calm

Contentsia - Mahoney

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100 mg
Magnolia Officinalis per serving
6
active ingredients
60
capsules
running on empty at dusk
capsules with chamomile at the bedside
restored on a dawn walk
What it may support

Four ways it earns its place on the shelf.

capsule with shilajit, seeds and lemon
Emotional wellbeing

May support emotional wellbeing and mental balance

Food supplements support a varied diet and healthy lifestyle; claims use the wording authorised for each nutrient.

Save 20% as a set
Part of a protocol

The Sleep Protocol.

Perfect Blend Magnesium + – Mahoney
evening
Three forms of magnesium, which contributes to the reduction of tiredness and fatigue
  • Great Sleep No Hangover - Ausreason
    £34.99
  • Perfect Blend Magnesium + – Mahoney
    £29.00
  • Contentsia - Mahoney
    £29.00
30 minutes before bedGreat Sleep No Hangover - Ausreason
eveningPerfect Blend Magnesium + – Mahoney · Contentsia - Mahoney
Protocol price
£74.39
£92.99
£63.23
on subscription

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How it works

How it works

Each daily capsule provides a synergistic combination of botanicals and amino acids:

  • Magnolia Officinalis – 100 mg Traditional Chinese botanical used to promote calm and reduce cortisol reactivity. Animal studies suggest magnolol and honokiol may modulate GABA activity and stress response. Source
  • Rhodiola Rosea – 100 mg Adaptogenic herb shown in clinical trials to help reduce fatigue and improve mood under stress. Source
  • Phellodendron Amurense – 100 mg Used in East Asian medicine and often paired with magnolia. Its alkaloids may support cortisol regulation and mood balance. Source
  • St. John’s Wort Extract – 75 mg (0.3% Hypericin, 3% Hyperforin) One of the most studied botanicals for mild to moderate low mood. Source
  • L-Theanine – 25 mg A naturally calming amino acid found in green tea. Shown to support relaxation without drowsiness. Source
  • 5-HTP (from Griffonia Seed) – 25 mg Supports serotonin synthesis in the brain, a key neurotransmitter for mood, sleep and appetite balance. Source
capsule cross-section illustration
What's inside

Every ingredient, and why it is there.

  • curls of magnolia bark beside a magnolia flower

    Magnolia bark

    100 mg

    Bark of the magnolia tree, used in traditional Chinese practice.

    Why it's here: Traditionally used to support relaxation.

    More about magnolia bark
  • rhodiola root and small yellow flowers on rock

    Rhodiola rosea

    100 mg

    A hardy root that grows in cold, high-altitude regions.

    Why it's here: Traditionally used to support energy and resilience to stress.

    More about rhodiola rosea
  • yellow-inside cork tree bark pieces

    Phellodendron bark

    100 mg

    Bark of the Amur cork tree, used in traditional Chinese practice.

    Why it's here: Traditionally used, often with magnolia, to support a calm mood.

    More about phellodendron bark
  • yellow St Johns wort flowers in a meadow

    St John’s wort

    75 mg

    A yellow-flowered herb.

    Why it's here: Traditionally used to support mood. It interacts with many medicines, including the contraceptive pill and antidepressants; check with your GP or pharmacist first.

    More about st john’s wort
  • loose-leaf green tea

    L-Theanine

    25 mg

    An amino acid found in tea leaves.

    Why it's here: Gives green tea its calm, focused character; often paired with caffeine.

    More about l-theanine
  • griffonia seed pods and dark seeds

    5-HTP (griffonia seed)

    25 mg

    A compound extracted from the seeds of the African griffonia plant.

    Why it's here: The body converts it into serotonin.

    More about 5-htp
Full supplement facts
IngredientAmount
Magnolia Officinalis100 mg
Rhodiola Rosea100 mg
Phellodendron Amurense100 mg
St. John’s Wort (0.3% Hypericin / 3% Hyperforin)75 mg
L-Theanine25 mg
5-HTP (Griffonia Seed)25 mg
Other ingredients: Dextrose, HPMC (vegetable capsule), Silicon Dioxide, Purified Water.
What the research says

Evidence, not anecdote.

3 findings behind this formula. Hover a card for the detail and the source.

Meta-analysis2016

In adults with mild to moderate depression, St John's wort produced more treatment responders than placebo and matched antidepressants.

Systematic review and meta-analysis of 35 RCTs (6,993 adults with major depressive disorder). St John's wort gave more responders than placebo (18 RCTs, 2,922 people), was as effective as antidepressants, and had fewer adverse events.

Meta-analysis2026

A single 200 mg dose of L-theanine improved attention, measured by reaction time, in healthy adults versus placebo.

Systematic review and meta-analysis of 31 placebo-controlled RCTs (1,168 people). A 200 mg dose taken 30-60 minutes before testing significantly improved choice reaction time, indicating better attention.

RCT2009

In adults with stress-related fatigue, Rhodiola rosea extract reduced burnout scores and improved concentration compared with placebo over 28 days.

Double-blind RCT, 60 adults aged 20-55 with fatigue syndrome taking 576 mg/day Rhodiola rosea extract (SHR-5) or placebo for 28 days. Rhodiola beat placebo on burnout scores and attention measures and lowered the cortisol response to waking.

Who it's for

Contentsia is well suited to adults who:

• Feel mentally fatigued, emotionally unbalanced or stressed
• Want gentle botanical support for mood and calm
• Are looking for non-sedating support for sleep and nervous system balance
• Prefer natural alternatives to synthetic mood formulas

Not for
  • Not suitable if you take antidepressants or the contraceptive pill (contains St John's wort).
  • Keep out of reach of children.
  • Do not exceed the recommended dose.
  • Consult a medical professional if pregnant, nursing, taking medication, or under medical supervision.
How to take it

Take 1 capsule daily with food, or as advised by your healthcare provider.
Each bottle provides a 30-day supply.

Warnings

Contains St John's wort, which can interact with medicines: do not take with antidepressants, and it can make the contraceptive pill less effective. Speak to your GP or pharmacist before use if you take any medication. Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle. Do not exceed the recommended daily dose. Keep out of reach of young children. If pregnant, breastfeeding, on medication or managing a mental health condition, consult your healthcare provider before use. This product is not intended to diagnose, treat, cure or prevent any disease.

Mahoney
Sourced, not settled for

Mahoney formulate to clinical doses and test every batch. When they make the best version of an ingredient, that is the one we stock.

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