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£8.99
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Pack size
Special offer: For every day EXTRA Strength 90 and For babies & children 90 - 90 days for the price of 60
Apply discount at the checkout - use code: CLUBBIOME
UK Second Class (4 to 10 working days): £2.50
UK First Class (1 to 3 working days): £3.95
UK Express (order by 2pm for next working day*): £6.50
International shipping available (see our Delivery page for details on shipping options, taxes and duties)
* Working days are Monday - Friday.
Gluten free
During pregnancy
Vegetarian
During breastfeeding
An easy to take short-term course of live cultures. Gluten-free and suitable for those with bloating. 5 billion friendly bacteria and 0.3g FOS fibres per sachet.
Who is it for?
7-day course of friendly bacteria for anyone looking to buy an easy, high quality short-term supplement.
Good to know:
Please note: This is a food supplement and is not intended to prevent, treat or diagnose any medical conditions
Customer feedback collected via independent review platform Trustpilot. See 'Reviews' tab for more customer opinions collected via our own website.
Natural food supplement suitable for adults and children (from 4 year onwards) with the following recommendations:
We highly recommend you take 'One week flat' for 7 consecutive days. Most consumers take this course once a month. However, it can be taken as often as desired.
Food supplements should not be used as a substitute for a healthy diet and lifestyle. Those with serious medical conditions should consult their doctor before use. OptiBac will not cause dependency, and may be used on an ongoing basis.
Like the rest of the OptiBac range, 'One week flat' does not require refrigeration. Store in a cool, dry place below 25°C and out of direct sunlight.
Live cultures are not recommended for those with serious medical conditions e.g. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, infants with short bowel syndrome, or patients with open wounds following major surgery; unless under a doctor's care.
Each sachet guarantees 5 billion good bacteria + 0.3g FOS fibres.
Suitable for vegetarian and gluten-free diets.
Following the taxonomic updates by a global team of scientists and published in April 2020, a reclassification has been advised for the L. casei species. The casei strain in 'One week flat' may therefore now also be known as Lacticaseibacillus casei Rosell-215.
Customer feedback collected via independent review platform Trustpilot. See 'Reviews' tab for more customer opinions collected via our own website.
If you have a specific question or need some advice on which product to choose please contact our Nutrition Team on +44 (0) 1264 318 881 or click on the link below for our contact form.
Need help choosing a product?I started taking the 28 course for my wedding and did not think I was very bloated but apparently so. I feel so much more comfortable when using these, my periods are less bloaty and after a big or heavy meal the bloating is also controlled and my trousers fit so much better. Does not taste of anything and I drink lots of water so this product is nice and easy for me. I found it cheaper on Medino website - hence the one less star.
I decided to try the ‘One week flat’ probiotic after a few years of painful bloating & after being diagnosed with a gluten intolerance. I now call these my ‘magic powders,’ I can’t praise them enough, my tummy is so much better with no bloating - fabulous!
I suffer with bloating when it's my time of the month, i've noticed a difference within 3 days whilst continuing a healthy diet and regular exercise