Payment Problem for UK customers

11th May 2022

We have and continue to have problems with payments from customers in the UK. Some subscriptions have been affected and all new UK orders and some UK subscriptions are potentially affected. We will contact you if you have an existing UK subscription and an issue arises.
The company that processes payments has been unable to update a security protocol for UK bank accounts. We are trying to get this fixed as quickly as possible.
If you are a new UK customer and you find that the payment fails when you try to purchase HDC, or if you have an existing UK subscription that fails to go through, please contact us at and we will be able to process your order.
We apologise for any inconvenience caused.

NOTICE: Laboratory Closed for Vacation

24th July 2021

The laboratory will be closed from the 30th July until the 9th of August. To minimize disruption to subscriptions: those subscriptions which would normally be sent on the 3rd of August will be sent on the 29th of July, and those orders due to be sent on the 5th of August will be sent on the 10th of August. We appreciate your patience while we are closed but please contact us at if this will cause any issues.

Notice: Small Price Increases Starting November 15, 2020

11th November 2020

We are again at the time of year when we must make a small increase in our prices. As always, we have absolutely tried to minimize the increase.  (For a new list of prices, starting November 15, 2020, please see the Buy Now page.) This has been an unprecedented year and the pandemic has meant that many of the materials we use in the laboratory, to produce HDC that are as clean and free from contamination as possible, have seen huge price increases.  We thank you for all your patience during this incredibly difficult time.

IMPORTANT NOTICE FOR JUNE 15, 2020 – Issue with Our Email!!!

15th June 2020

On Saturday, our hosting service migrated our website to a new server and in doing so, corrupted our email system.  We have been unable to receive or send any emails since Saturday evening.  If you need to contact us please use one of these options:

  1.  Email Judy at
  2. Call the lab at 01525 555 982
  3. Call Judy at 914 241 0673

Thank you for your patience and understanding.


Small Increase in Postage

14th June 2020

We have received notification from the UK’s Royal Mail that prices have gone up for UK shipping and for international tracked shipping.  We are forced then to raise those prices slightly to cover that difference.  International tracked shipping will now be £14.00.  UK shipping will now be £2.40.  Thank you for your understanding.

COVID-19 Update: Shipping Information, as of March 19, 2020

19th March 2020

In light of the uncertainty since the outbreak of Covid-19 I wanted to reassure you that, at present, we are operating as usual. The shipping restrictions which have been put in place only apply to people and not to goods so we are shipping normally.

The mail service we use does not require a signature and is apparently not subject to the same delays that are occurring for packages where a signature is required (for obvious reasons). We will be keeping up to date with any changes that may occur and will contact you if anything changes. If you do experience any delays, please be assured that we will always cover the costs of orders that arrive too late to be used.

If you have any concerns or worries, please do get in touch.

Keep well and stay safe.

Notice of Small Price Increase: October 2019

18th October 2019

Our mission, when we opened our doors over 6 years ago, was to make helminths available to all who wanted them, in a safe and affordable fashion. To that end, we have endeavored always to keep our prices as low as we can while ensuring the survival of our company. We have recently been faced with exceptionally large price increases from our vendors, ranging from accountancy fees to the cost of laboratory items to rent. Thus, we are now unfortunately in a financial situation that forces us to have to raise our prices slightly in order to survive.
Our new prices, starting Tuesday, October 22, 2019 are as follows:
  1. Vial of 5 – £21
  2. Vial of 10 – £25 pounds
  3. Vial of 20 –  trial dose £33 pounds; on subscription £30
  4. Vial of 30 – trial dose £40 pounds; on subscription £35
  5. Vial of 40 – trial dose £45 pounds; on subscription £41
  6. Vial of 50 – trial dose £57 pounds; on subscription £52
  7. Vial of 60 – trial dose £67 pounds; on subscription £57
  8. Vial of 100 – trial dose £95 pounds; on subscription £90

Changes to Shipping Dates: Effective August 19, 2019

21st August 2019

The laboratory will be changing our shipping schedule beginning this week. Going forward, we will only be shipping on Tuesdays and Thursdays:  all subscriptions that would have refilled on Fridays will be moved to Thursdays, and all other orders received after 9:00 AM GMT on Thursdays will go out the following Tuesday.  There are several reasons for us instituting this change, including that, in the longer term, it will allow us more time to research ways to improve our techniques and procedures, in addition to the research we already undertake in collaboration with Lancaster University.  If you have any questions, please contact Dr. Marc Dellerba at


28th September 2018

True to our mission, we have continued to make a Herculean effort to make HDC as affordable as humanly possible. Thus, in spite of major price increases in the cost of laboratory materials, we have not had a price increase in 3 years.  Unfortunately, in order to continue covering our overhead, we do need to raise them at this time.  As of October 1st, our new prices will be as follows.  As always, we will do our best to help those of you in dire need.  Thank you so much for your understanding.

Vial of 5 – £18

vial of 10 – £22

vial of 20 – £30/ subscription rate £28

vial of 30 – £36/ subscription rate £32

vial of 40 – £43/ subscription rate £38

vial of 50 – £54/ subscription rate £49

vial of 60 – £64/ subscription rate £54

vial of 100 – £85/ subscription rate £80


Biome Restoration Back in the News

18th April 2017

Read about helminths in the UK’s The Daily Mail!   “Severely autistic boy, 4, is on the road to recovery after undergoing WORM THERAPY despite being told he would never lead a normal life”