Bio Active Herbal see also: Kombucha Tonics 
About Lewtress Natural Health
about lewtress
Founded in beautiful West Wales 1995
Rob and Cathay Lewis
Certified Iridologists and Naturopaths
I.P.H.M.  B.I.A.E.T.  C.I.B.T.A.C.  B.C.M.A.
Holistic Therapists

Rob and Cathay Lewis established Lewtress Natural Health in 1995. The company has gone from strength to strength, with their expert knowledge identifying customer needs and researching natural herbal solutions to address health issues. Today, Lewtress is one of the market’s leading producers of natural health supplements.

Rob and Cathay, supported by an enthusiastic team, continue to develop their artisan bespoke supplements, offering the best quality for the best possible results. Lewtress prides itself on using only pure high potency ingredients. In comparison to mass produced, processed supplements flooding the market (with many containing nasty added extras), Lewtress do not add anything to their pure herb extracts. Lewtress guarantee no fillers, no rice powder, no nasties, just pure high potency botanicals.

Lewtress provide excellent customer service and this is verified by the five star reviews we receive. Bespoke advice can also be provided via our contact page.

trustpilot rating

The development of Lewtress products works in harmony with our Naturopathic clinic. In consultation with our clients, we are able to assess, recommend and develop our supplements for a range of key health issues. The feedback we receive from our clients is invaluable. Rob’s speciality is men’s health and Cathay focuses on women's health. Both have a wealth of knowledge in natural healing. As the world gets more challenging with environmental toxicity, even affecting the air we breathe, the food we eat and the water we drink, it is important to remain healthy and on form. Our nutritional supplements can help to achieve this.

How Lewtress Started
It all started in 1995 with a Kombucha culture and a brilliant friend who had an enthusiastic belief in good health and life. He took to the road with our first green tea versions of therapeutic Kombucha drink and the Kombucha Fusions. He travelled around the country introducing our products to Health Food Stores and wholesalers. From West Wales to Brighton, London and the Cotswolds, Lewtress Kombucha became a big hit.
kombucha in the uk

At their successful Naturopathic clinic in rural West Wales, Rob and Cathay also got wonderful feedback on how good their artisan Kombucha tasted. News about the health benefits of their Kombucha products soon spread and a production unit was purpose built in West Wales, employing Master Artisan Kombucha Brewers. Lewtress long ferment true Kombucha stands far above the mass produced Kombucha sugary drinks on the market, do not confuse them! A short fermentation, heat treated, pasteurised and sugared Kombucha will not add anything to improve health or support your microbiomes. Read more about our Kombucha here

Over time, our customer base started asking for other high potency supplements. Super Strength Rosehip extract for arthritis, Icariins for natural anti-inflammatory properties, energy boosters, sleep enhancers, libido boosters … and the list grew to what we at Lewtress are today. We are still expanding as other health giving botanicals in the world are found and our research continues.

“Good nutrition promotes health in all parts of the body.
Your well being depends on caring for the body as a whole.”

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Postage and Packaging

The cost of postage is automatically calculated and clearly displayed when you add an item to your basket. All products on this website are in stock ready for immediate dispatch from the United Kingdom.

United Kingdom:
  • Same working day dispatch for orders received before 1pm Monday to Friday.
  • Capsules and concentrates are sent by Royal Mail first class post, so special delivery instructions are not applicable. If ordered before 1pm on a workday, first class mail will usually arrive next working day, but this cannot be guaranteed. CORONAVIRUS is slowing down some Royal Mail deliveries. All orders over £75 are upgraded to recorded delivery (at no extra cost). Postage cost of letterbox friendly capsules is £1.95, larger bottles £3.60.
  • Free shipping for all orders over £55.
  • Orders containing 1 litre drinks: £7.95 any number of bottles. Kombucha orders are sent by courier, a signature will be required unless reasonable alternative delivery instructions can be carried out (eg If not in, leave with next door).
  • Orders not delivered within 14 days must be reported straightaway.
United Kingdom Next Working Day Delivery:
  • You will be able to choose this option if you are placing an order between Monday-Friday before 1pm. A signature will be required on delivery.
  • Capsules and small concentrate bottles (50 and 100ml bottles) are shipped for £8.10 to any United Kingdom postcode.
  • This option is not available for Kombucha drinks.
United Kingdom (Outlying area): (please allow 3 - 5 working days)
  • Our couriers treat any areas which are not on mainland England, Wales or Scotland as 'outlying'. This includes all islands, North and South Ireland and certain remote areas of the Scottish Highlands. If you live in one of these areas Next Working Day delivery is not possible. These postcodes are outlying areas:
    AB31–AB38, AB41–AB45, AB51–AB56, BT - ALL, FK19–FK21, GY1–GY9, HS1–HS9, IM – ALL, IV1–IV28, IV30–IV32, IV36, IV40–IV49, IV51–IV56, IV63, KA27–KA28, KW1–KW14, PA20–PA38, PA41–PA49, PA60–PA78, PH1, PH5–PH10, PH15–26, PH30–PH44, PH49–PH50, TR21–TR25, SHETLAND, ISLE OF WIGHT, ORKNEY, HEBRIDES.
  • Capsules and small concentrate bottles (50 and 100ml bottles): £3.60 any amount of bottles
Europe: on average 5 - 7 working days but please allow up to 21 working days as delivery times can vary from country to country

    Please note that we are unable to ship to EU countries at present due to complications at customs. We hope this situation will resolve soon.

  • Capsules and concentrates (50 and 100ml bottles): £3.95 any amount
  • 1 litre drinks: Please contact us for charges as they vary from country to country
USA / Rest of World: Please allow 7 - 10 working days, this is only a guide as extra security measures can cause delays. Delivery times can vary depending on the postal system in your country. Refunds or replacements will only be issued if an item is not delivered within 28 days.
  • Capsules and concentrates (50 and 100ml bottles): The total will be calculated and displayed according to the contents of your basket
  • 1 litre drinks: Please contact us for charges as they vary from country to country


Large parcels may need to be signed for. In the event that no one is available to sign, goods will be returned to our carrier’s depot and you will be contacted to arrange a convenient time to re-deliver, at no extra cost. If your order does not turn up within the expected timescale, please contact Customer Services on 01239 654111 and we will be happy to help.
Customers in Estonia: Please note that we have had some products returned by Estonia customs. If you wish to have products delivered to this country, please check with customs before ordering. If an item is returned to us from customs then we will issue a refund less postage and admin charges.

Cheque Orders

You will notice that we offer the option to pay by cheque. If you choose this option you must send your cheque first before you receive your goods. We will dispatch your order on receipt of the cheque.


Whilst we have made every effort to ensure that our product descriptions are accurate, descriptions are to be used as a guide only. We do not accept responsibility for accidents or injury which may occur due to errors or omissions on this web site. Always refer to the instructions on the product itself.

Money back Guarantee Refunds

Rose Hip extract:
Our money back guarantee for 7500mg Rose Hip is only applicable in cases of Osteo arthritis, we will not issue a refund if the product has been taken for Rheumatoid arthritis. We do insist that the used containers are returned to us with your order number and a covering note within 21 days from the date of purchase. Our money back guarantee does not apply to 2500mg Rose Hip or any of the trial packs

If you are not delighted with your purchase you have the right to cancel within seven days of your purchase, or seven days from the receipt of the goods (whichever is longer). If you cancel your order you will have your payment returned, provided you return your goods to us unopened, and in good condition, to the address shown on the contact us page. In all cases please call us first on 01239 654111 to tell us and to be issued with a returns number. Please note that we do not refund any postage or freight charges on goods dispatched as ordered.
Complaints Procedure

We hope that you will never have cause to complain about our products or services. If however, you do have a complaint, please call us on 01239 654111 between the hours of 9am and 5pm Monday to Friday and we will do our best to assist you. If you wish to return a product, please call us first on 01239 654111 to tell us about your problem and to be issued with a returns number. Delays in shipping within the UK can sometimes occur and are beyond our control. Where an item has not been delivered after 10 working days we will then consider re-dispatching the order. For orders placed outside the UK: If an order is undelivered within 28 days we will offer to dispatch a replacement or offer a refund.

According to United Kingdom law, you must be aged 18 or over to purchase online.

Lewtress Natural Health Ltd is Registered in the United Kingdom No. 05173690

Lewtress Natural Health Ltd is VAT Registered in the United Kingdom No. 827199789