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Journal

From clinical practice

Medical explainers written by our doctors, reports from the house, and what others write about us.

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Ultherapy treatment at The Retreat

Guide · April 2026

Ultherapy PRIME in Berlin: the medical guide

How microfocused ultrasound works at the SMAS layer, who benefits, and why the result only becomes visible after 90 days.

Dr. med. univ. Maria-Theresa Thiede · 13 min read

All 8Articles 3From the house 4Press 18
Beetroot on marble

Article · October 2025

What actually strengthens the immune system

Sleep, food, movement and daylight are well documented. With infusions and supplements, what matters is whether a deficiency has been shown.

Team Retreat

Breakfast bowl with fruit

Article · October 2025

Why gut health matters as we age

What the microbiome has to do with the immune system and metabolism, what of that is documented, and what actually helps day to day.

Team Retreat

Your first step

Not sure which treatment fits?

That is the normal case. In the first consultation we look at your skin and the whole picture, and tell you what makes sense and what can wait.

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Joint controllership with Meta — the essence of our arrangement

If you have consented to advertising measurement, The Retreat HC GmbH & Co. KG, Mauerstr. 78, 10117 Berlin ("The Retreat") and Meta Platforms Ireland Limited (Merrion Road, Dublin 4, D04 X2K5, Ireland; "Meta") are joint controllers under Art. 26 GDPR for the collection of certain data on our booking page and its transmission to Meta, on the basis of Meta's standard "Controller Addendum". Meta's subsequent processing of the data is not part of the joint controllership; for it, Meta is an independent controller. In essence:

- What is jointly processed: pseudonymised contact identifiers (email address and mobile number as SHA-256 checksums), advertising click identifiers (fbc, fbp), and a generic booking event — to measure and improve The Retreat's advertising. Your treatment selection, your concern, and any other health information are not transmitted to Meta.
- Scope of the joint controllership: it covers the collection of the data named above on our booking page and its transmission to Meta. Meta's subsequent processing is not carried out under joint controllership but under Meta's own responsibility as an independent controller.
- What The Retreat is responsible for: the lawful collection and transmission of this data (including obtaining your consent), informing you about it (this page, the privacy policy), and answering your data-subject rights insofar as they concern collection and transmission.
- What Meta is responsible for: the security of the joint processing and your data-subject rights with respect to the data Meta stores after transmission. Meta's subsequent processing for its own purposes is Meta's sole responsibility. Details: Meta's Privacy Policy and Meta's own explanation of the addendum.
- Your rights (access, rectification, erasure, restriction, objection, portability) can be exercised against either The Retreat or Meta. First point of contact: privacy@retreatgermany.com. You may withdraw your consent at any time with effect for the future.
- US transfer: data may be transferred to Meta Platforms, Inc. (USA) — on the basis of the EU-US Data Privacy Framework, alternatively the EU Standard Contractual Clauses plus supplementary measures.
- Right to lodge a complaint with a supervisory authority, e.g. the Berlin Commissioner for Data Protection and Freedom of Information.

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Das Château Royal liegt zwischen Brandenburger Tor und Museumsinsel und verkörpert den Geist des modernen Berlins – kosmopolitisch, kreativ und charakterstark.

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