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Disclosure § 25 MedienG Media owners and publishers:

Process Optimal Holzer GmbH

Natural products laboratory Wenigzell

Pitterman 21

A-8254 Wenigzell

UID: ATU64766701



Visual material, such as graphics and photographs, as well as texts and information, may not be published or redistributed, whether for commercial or other purposes, without the prior express written permission of the respective copyright holder. Any kind of use outside the limits of copyright law requires the written consent of the respective rights holder. Unauthorized copying, saving, etc. of the information provided on these websites is not permitted and is punishable by law. The media owner strives to always respect the copyrights of others and to use self-created and license-free works.



(c) DI Günther Holzer


All texts on the website have been carefully checked. Regardless, no guarantee can be given that the information is correct, complete or up-to-date.

Photos: Gerhard Wetzelberger, Maria Bischof, Günther Holzer


Links to this website - even to pages in depth - are welcome. It is not permitted to transfer the main window to a frame set from the link setter. Your own links to external sites only represent signposts to these sites; They are therefore regularly displayed in their own browser window using an external link. The publisher does not identify with the content of the linked pages and assumes no liability for them. If one of the pages linked to contains questionable or illegal content, please let us know; in such a case the link will be deleted immediately.

data protection


The protection of your personal data is particularly important to us. We therefore process your data exclusively on the basis of the legal provisions (GDPR, TKG 2003). In this data protection information we inform you about the most important aspects of data processing on our website. We treat your personal data confidentially and in accordance with the statutory data protection regulations and this data protection declaration.

It is generally possible to use our website without providing any personal data. As far as personal data (e.g. name, address or e-mail addresses) is collected on our pages, this is always done on a voluntary basis, as far as possible. This data will not be passed on to third parties without your express consent.

We would like to point out that data transmission over the Internet (e.g. when communicating via email) can have security gaps. Complete protection of data from access by third parties is not possible.

Some of the websites use so-called cookies. Cookies do not cause any damage to your computer and do not contain viruses. Cookies serve to make our offering more user-friendly, effective and secure. Cookies are small text files that are stored on your computer and that your browser saves.

Most of the cookies we use are so-called “session cookies”. They are automatically deleted after your visit. Other cookies remain stored on your device until you delete them. These cookies enable us to recognize your browser the next time you visit.

You can set your browser so that you are informed about the setting of cookies and only allow cookies in individual cases, exclude the acceptance of cookies for certain cases or in general, and activate the automatic deletion of cookies when closing the browser. If cookies are deactivated, the functionality of this website may be restricted.

The provider of the pages automatically collects and stores information in so-called server log files, which your browser automatically transmits to us. These are:

  • Browser type/browser version

  • operating system used

  • Referrer URL

  • Host name of the accessing computer

  • Time of server request

This data cannot be assigned to specific persons. This data will not be merged with other data sources. We reserve the right to subsequently check this data if we become aware of concrete indications of illegal use.

If you send us inquiries using the contact form, your details from the inquiry form, including the contact details you provided there, will be stored by us in order to process the inquiry and in case of follow-up questions. We will not pass on this data without your consent.

You can revoke your consent to the storage of the data or your data, for example through e-mails you have sent to us voluntarily, at any time.

We use Google Maps on our website to provide you with precise information on how to reach us. Google Maps uses up to four cookies: khcookie, NID, SNID and PREF. We use interactive maps from Google because we believe they help our visitors find the best route to us. The basis for use is Google's data protection declaration, which can be found at, as well as the terms of use for Google Maps, which you can find at http://www. can be read.

If you do not want Facebook or Twitter to be able to assign your visit to these websites to your Facebook or Twitter user account, please log out of your Facebook or Twitter user account.

You have the right to free information at any time about your stored personal data, its origin and recipient and the purpose of data processing, as well as the right to correct, block or delete this data. You can contact us at any time at the address given in the legal notice for this purpose or for further questions on the subject of personal data.

Our website may contain YouTube videos that are stored on and can be played directly from our website. Here we use the “extended data protection mode” option provided by YouTube, which means that no data about you as a user is transferred to YouTube if you do not play the videos. Only when you play the videos are YouTube cookies stored on your computer and data transferred to the YouTube operator Google, Inc., 1600 Amphitheater Parkway, Mountain View, CA 94043, USA. If you play videos stored on YouTube, at least the following data will be transmitted to Google, Inc.: IP address and cookie ID, the specific address of the page accessed on our site, language setting of the browser, system date and time of access and your browser identifier. The data transfer occurs regardless of whether you are logged into YouTube with a user account or whether you do not have a user account. If you are logged in, this data will be assigned directly to your account. You can prevent this assignment by logging out before activating the start button. YouTube or Google, Inc. saves this data as usage profiles and uses them for advertising, market research and/or needs-based design of its website. You have the right to object to the creation of these usage profiles, which you must address directly to Google Inc. as the operator of YouTube. Google, Inc. provides further information on YouTube’s data protection at By playing the YouTube videos, you agree to the data processing by Google, Inc. We do not process the affected data.

Your trust is particularly important to us. If you have any further questions about data protection, please contact the following contact:


DI Günther Holzer

Natural products laboratory Wenigzell

Pitterman 21

A-8254 Wenigzell

cookie settings




Cookies are text files that are automatically stored locally in the visitor's browser when a website is accessed. This website uses cookies to make the offer user-friendly and more functional. Thanks to these files, it is possible, for example, to display information tailored to individual interests on a page. Security-relevant functions to protect your privacy are also made possible through the use of cookies. The sole purpose is to adapt our offer to your customer requirements as best as possible and to make site use as comfortable as possible. With the application of the GDPR 2018, webmasters are obliged to follow the basic regulation published at and to inform their users accordingly about the collection and evaluation of data. The lawfulness of the processing is based on Chapter 2, Article 6 of the GDPR.


Your data protection rights


If you have an account on this site or have written comments, you can request an exported export of your personal data, including any data you have provided to us. You can also request that we delete any personal data we hold about you. This does not include data that we are required to retain for administrative, legal or security reasons. In this case, you can send your email to the contact address listed in the legal notice. Please mention the website on which you left your comment. We will then check whether information has been saved for the sender email address and, if necessary, send you the complete export of your data for information.

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