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Contact
Page overview
Secretariat, Membership Administration
Request member login to access our content:
Please fill in the application form here.
Before reporting login problems to us, please first try out whether this compilation of the most common errors solves the problem.
For administrative matters related to membership (address changes, registration, payment, login problems, etc.) and for orders, please contact the secretariat:
Editorial Office, Webmaster
Please help us to keep our pages up to date and to improve them continuously! We gladly accept suggestions, praise and criticism.
Do you have a concern regarding the editorial content or the functioning of our website (errors, suggestions, broken links, questions of understanding, etc.)?
You can reach the editorial office and the webmaster at the following address:
Postal Address:
SIGHI
Heinz Lamprecht
Sackstr. 2
8460 Marthalen
SWITZERLAND
Individual Consulting, SIGHI-Hotline

Take advantage of our consulting service on the topics of histamine intolerance and mast cell activation disease.
You will be personally advised by Heinz Lamprecht, the author of this website. His qualification: He is a scientist in environmental sciences and himself affected. Heinz Lamprecht has been dealing with the subject of histamine and mastcellactivation for many years, but is not a physician, not a medical professional. Therefore, your questions can only be discussed from the point of view of a person concerned with a scientific background. He can neither offer medical diagnoses nor medical treatments and can neither promise healing nor other successes. His advice does not replace a visit to the doctor. Any suggestions regarding therapy should be discussed with your doctor before being implemented. Never change your doctor-prescribed medication or other medical instructions without first consulting a doctor. Please be aware that only a limited capacity can be allocated to consultation services, and that it is therefore not always possible to answer all inquiries. We reserve the right to refuse orders without giving reasons.
Liability exclusion (dsclaimer): For all damages and consequential damages resulting from the compliance with our information, any liability is rejected. All actions or omissions based on our information are at your own risk. Never rely on one source in general, but check the information you receive for its correctness!
Privacy: All information provided to us will be treated confidentially and used exclusively in connection with your consultation. By contacting us or accepting our consultation, you consent to the processing of your data for the purpose of providing the requested consultation service. Our general data protection policies can be found here.
Advice by E-Mail

Conditions: You can ask your questions at any time. Heinz Lamprecht will answer as soon as he can. Languages: German, English, French and Spanish. We will answer in German and translate the answer into your language. Other languages on request. With the help of automated translation services, we can also answer in many other languages.
Cost: Set a cost ceiling: Tell us the maximum expenses you accept for handling your request. Price for members: 90 CHF/h or 90 EUR/h, at least 15 CHF or 15 EUR per request. Price for non-members: 120 CHF or 120 EUR per hour, at least 20 CHF or 20 EUR per order.
Rate examples: 1 to 10 minutes costs 15 CHF or 15 EUR for members, 20 CHF or 20 EUR for non-members. 20 minutes costs 30 CHF or 30 EUR for members, 40 CHF or 40 EUR for non-members. 45 minutes cost 67.50 CHF or 67.50 EUR for members, 90 CHF or 90 EUR for non-members.
If the answers are very sparse or we cannot help at all, we usually refrain from invoicing.
Here's how it works:
- Send an email with the following information to the email address below:
- Subject line: "Request to the SIGHI e-mail consulting service".
- Please write: "I hereby wish to engage you for a fee-based consultation via email, at the rates published on the website."
- Please describe your request in the necessary detail and clarity.
- In urgent cases, write by when exactly you must have the answer at the latest.
- Tell us what the maximum cost may be (cost ceiling).
- First name, last name, complete postal address incl. country. This information is necessary for the creation of a tax-compliant invoice.
- Are you currently a SIGHI member or not? Member number?
in your mail client, if one is installed and linked.
Please complete / modify the text and send the e-mail. - You will receive from us, together with the answer, an invoice in PDF format by e-mail. Payment by bank transfer to one of the bank accounts listed here. (We also have a EUR account in the EU and a USD account in the USA).
Consulting by Chat

Offline. The consultation via chat is not available this week. Please choose one of the other contact options offered!
Advice by Letter Mail

Do you find writing a letter easier than using electronic media? Then you are welcome to send us your questions by letter post.
Conditions: You can ask your questions at any time. Heinz Lamprecht will answer as soon as he can. Languages: German, English, French and Spanish. We will answer in German and translate the answer into your language. Other languages on request. With the help of automated translation services, we can also answer in many other languages.
IMPORTANT: Please write legibly!
Cost: Set a cost ceiling: Tell us the maximum expenses you accept for handling your request. Price for members: 90 CHF/h or 90 EUR/h, at least 15 CHF or 15 EUR per request. Price for non-members: 120 CHF or 120 EUR per hour, at least 20 CHF or 20 EUR per order.
Rate examples: 1 to 10 minutes costs 15 CHF or 15 EUR for members, 20 CHF or 20 EUR for non-members. 20 minutes costs 30 CHF or 30 EUR for members, 40 CHF or 40 EUR for non-members. 45 minutes cost 67.50 CHF or 67.50 EUR for members, 90 CHF or 90 EUR for non-members.
If the answers are very sparse or we cannot help at all, we usually refrain from invoicing.
Here's how it works:
- Send a letter with the following information to the postal address below:
- Begin with, "I hereby wish to engage you for a fee-based consultation at the rates published on the website."
- Please describe your request in the necessary detail and clarity.
- In urgent cases, write by when exactly you must have the answer at the latest.
- Tell us what the maximum cost may be (cost ceiling).
- Billing and reply address: First name, last name, postal address incl. country.
- Are you currently a SIGHI member or not? Member number?
- Possibly your e-mail address, if we may reply and invoice by e-mail. Then, of course, the postage costs will be waived. In case of missing, illegible or non-functioning e-mail address, we will reply by letter.
Heinz Lamprecht
Sackstr. 2
8460 Marthalen
SWITZERLAND - You will receive from us, together with the answer, an invoice in PDF format by e-mail. Payment by bank transfer to one of the bank accounts listed here. (We also have a EUR account in the EU and a USD account in the USA).
Impressum
Technical and editorial support of the website, responsibility for content:
SIGHI
Heinz Lamprecht
Sackstr. 2
8460 Marthalen
SWITZERLAND
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