We value your privacy

We use cookies to enhance your browsing experience, serve personalized ads or content, and analyze our traffic. By clicking "Accept All", you consent to our use of cookies.

More about privacy and cookies

Probiotic Effect

£119.80 -25% £89.80

with code · Lowest price in the last 30 days:

ADD TO CART
Probiotic Effect

Probiotic Effect

30-day supply

Choose quantity

Final price:
PayPal Maestro Mastercard Visa Klarna
Free Shipping on purchases over £100.00
Warranty 60-Day Peace Of Mind Promise
Estimated delivery time: 3 to 5 business days
Hurry! Only 10 items left in stock
20 billion bacteria20 different beneficial strains
Gut + hormone duoComplete Biotics + My Cycle
Made in the EUTo the highest quality standards
Money-back warranty60-day, 100% satisfaction guarantee

Why Probiotic Effect

Hormonal imbalance has long been treated only on the surface

Usual approach
Probiotic Effect
Focus
×Symptoms only
✓The gut–hormone connection
Gut flora
×Not addressed
✓20 billion bacteria, 20 strains
Hormone support
×Single ingredient
✓Myo-inositol + Quatrefolic® folate
Fibre
×Bacteria alone
✓Lactic acid bacteria + dietary fibres
Storage
×Often needs the fridge
✓Long shelf life at room temperature
Expert-led formula
×Usually no medical specialist behind it
✓Dr Darija StrahFormulated with Dr Darija Strah, gynaecologist & obstetrician Meet the doctor →

The problem

Have you ever thought the cause might be hidden in the gut?

Modern science reveals a strong connection between gut health and hormonal balance. The gut is not only responsible for digestion — it is the centre of the immune system, mood regulation and even hormone production.

  1. 01

    A disrupted microbiome

    When gut flora is out of balance, digestion, nutrient absorption and comfort suffer.

    Answered byProbiotic cultures

    Beneficial bacteria that renew gut flora — key for optimal digestion, better nutrient absorption and reduced bloating.

  2. 02

    Hormones metabolised poorly

    Beneficial gut bacteria help metabolise hormones like oestrogen. A disrupted microbiome can lead to imbalance.

    Answered byMyo-inositol

    An essential component for stabilising hormones and improving insulin sensitivity.

  3. 03

    Cycle & reproductive health

    Imbalance can show up as irregular cycles, fatigue, mood swings and weight changes.

    Answered byQuatrefolic® folate

    Plays a crucial role in cellular functions and additionally supports reproductive health.

  4. 04

    Missing micronutrients

    The whole body feels the consequences when key minerals and vitamins fall short.

    Answered byKey minerals + vitamin D

    Magnesium for normal psychological function, zinc for fertility and reproduction, chromium for normal blood glucose and vitamin D for healthy bones and teeth.

The mechanism

From the gut to hormonal balance

When the gut microbiome is balanced, the conditions for successful hormone regulation are created.

A vicious circleGut and hormones out of syncInner balanceGut and hormones supported together
  1. 01
    ProblemDisrupted gut floraSolutionRenewProbiotic cultures with dietary fibres
  2. 02
    ProblemPoor absorptionSolutionAbsorbNutrient absorption improves, natural detox activates
  3. 03
    ProblemHormonal imbalanceSolutionBalanceMyo-inositol stabilises, folate supports
  4. 04
    ProblemEveryday symptomsSolutionFeel itLess pronounced PMS, clearer skin
The resultLess bloatingBetter digestionCalmer cycleClearer skin

The solution

Probiotic Effect: inner balance, from the gut out.

Two products that work together — Complete Biotics for your gut flora and My Cycle for hormonal balance. With a small change in your daily routine, you take care of the root, not just the symptoms.

20 bn beneficial bacteria20 strains2 products
  • 1× Complete BioticsLactic acid bacteria + dietary fibres
  • 1× My CycleMyo-inositol + Quatrefolic® folate
  • Key mineralsMagnesium, zinc, chromium & vitamin D
  • Room-temperature stableLong shelf life, no fridge needed
60-day money-back guarantee

Real customer journeys

Before and after adding Probiotic Effect

Tired, then lighter
Miriam (36)Liverpool
✓ Verified customer

The bloating is gone and I have so much more energy, I didn't expect this.

A calmer mood
Jana (40)Cardiff
✓ Verified customer

My hormonal belly finally started shrinking, something no diet ever managed.

More relaxed, day to day
Petra (34)Sheffield
✓ Verified customer

It feels like my body is running more smoothly, from morning to evening.

The authority

Two experts. One bundle.

Each product in Probiotic Effect was developed with a specialist in its field — and made in the EU to the highest quality standards.

Dr Darija Strah

Formulated with · My Cycle

Dr Darija Strah

Gynaecologist & obstetrician · runs a private PCOS clinic

Dr Darija Strah works every day with women whose cycles, mood and weight are affected by hormonal imbalance. My Cycle brings together the ingredients she focuses on — myo-inositol, NAC, Quatrefolic® folate and key minerals — in one daily serving.

✓Medical doctor
✓Gynaecologist & obstetrician
✓Private PCOS clinic
✓Focus on women’s hormonal health
Mike Gersic

Formulated with · Complete Biotics

Mike Gersic

Physical transformation & healthy lifestyle expert

Mike Gersic co-founded a healthy-lifestyle website and has written more than 200 articles on diet and fitness. For Complete Biotics, the focus was a simple daily capsule: a broad 20-strain blend plus prebiotic fibre to feed it.

✓Healthy lifestyle expert
✓200+ articles on diet & fitness
✓Co-founder of a lifestyle website
✓Focus on gut health & energy

Key ingredients

Gut support meets hormone support.

A 20-strain probiotic capsule plus a 10-active daily powder.

Probiotic cultures
Hero ingredient · Complete Biotics

20-strain blend

20 bn CFU

Twenty strains — including Lactobacillus acidophilus and Bifidobacterium bifidum — with 90 mg of chicory-root inulin to feed them.

Myo-inositolHormone balance
3000 mg · My Cycle

Myo-inositol

A key component for supporting hormonal balance and insulin sensitivity.

N-acetyl cysteine (NAC)Antioxidant
100 mg · My Cycle

N-acetyl cysteine (NAC)

An amino-acid derivative chosen to work alongside myo-inositol.

Inulin (chicory root)Prebiotic fibre
In both products

Inulin (chicory root)

Dietary fibre that feeds the beneficial bacteria in your gut.

Quatrefolic® folatePatented form
360 µg · My Cycle

Quatrefolic® folate

Plays a role in cellular functions and supports reproductive health.

Broccoli extractPlant extract
80 mg · 400 µg sulforaphane

Broccoli extract

A source of sulforaphane, included in the My Cycle formula.

Vitex agnus-castusBotanical
25 mg · My Cycle

Vitex agnus-castus

Chasteberry extract, traditionally used in women’s cycle formulas.

MagnesiumMineral
105 mg · My Cycle

Magnesium

Contributes to electrolyte balance and normal psychological function.

ZincMineral
20 mg · My Cycle

Zinc

Contributes to normal fertility and reproduction and immune function.

Vitamin DVitamin
5 µg · My Cycle

Vitamin D

Contributes to normal calcium absorption and healthy bones and teeth.

ChromiumMineral
40 µg · My Cycle

Chromium

Contributes to the maintenance of normal blood glucose levels.

Active ingredients

IngredientAmountProduct
Bacterial blend (20 strains)20 bn CFU · 100 mgComplete Biotics
Inulin (chicory root)90 mgComplete Biotics
Myo-inositol3000 mgMy Cycle
N-acetyl cysteine100 mgMy Cycle
Magnesium (citrate)105 mgMy Cycle
Zinc (gluconate)20 mgMy Cycle
Broccoli extract80 mgMy Cycle
Vitex agnus-castus extract25 mgMy Cycle
Quatrefolic® methylfolate360 µgMy Cycle
Vitamin D5 µgMy Cycle
Chromium40 µgMy Cycle
Complete Biotics: per 1 capsule. My Cycle: per 6 g serving. Gluten-, soy- and dairy-free; no stimulants or added sugar. Made in the EU. Not recommended during pregnancy or breastfeeding or for under-18s; consult a healthcare professional if you take medication or have a diagnosed hormonal condition. Do not exceed the recommended daily dose. Store below 25 °C, dry and out of reach of children.

The proof

Trusted by women who deserve the best.

3.000.000+satisfied customers
4.9 / 5average rating
7,864verified reviews
60-Day Peace Of Mind Promise

60-Day Peace Of Mind Promise

We're proud to offer a 60-day money-back guarantee on every Golden Tree product sold. If you don't notice any results, simply contact our Customer Support team for an 100%, no-questions-asked, money-back guarantee.

The bottom line

Five reasons to take care of your inner balance

Hormonal imbalance has long been treated only on the surface. Probiotic Effect supports the gut and hormones together — with one capsule and one drink a day.

  1. 01

    Gut and hormones together

    A probiotic capsule plus a hormone-support powder in one bundle.

    20 bnBacteria daily
  2. 02

    20 different strains

    A broad blend, fed by chicory-root inulin.

    20Strains
  3. 03

    3000 mg myo-inositol

    The main active in My Cycle, with NAC and Quatrefolic®.

    3000mg per serving
  4. 04

    Developed with experts

    My Cycle formulated with gynaecologist Dr Darija Strah.

    4.9Average rating
  5. 05

    Risk-free to try

    Backed by our 60-day, 100% satisfaction guarantee.

    60Day guarantee
Probiotic Effect

Probiotic Effect

30-day supply

Choose quantity

Final price:
PayPal Maestro Mastercard Visa Klarna
Free Shipping on purchases over £100.00
Warranty 60-Day Peace Of Mind Promise
Estimated delivery time: 3 to 5 business days
Hurry! Only 10 items left in stock