Evidence over marketing

ZADA
A physician-led platform

Medicine. Aesthetics. Evidence.

A physician-led platform on aesthetic medicine, beauty, anti-aging, treatments and products — focused on scientific evidence rather than marketing claims.

Physician-led Fully referenced No paid recommendations Deutsch · English · Русский
The approach

Between medical reality and marketing claims there is often a long distance.

Few areas of medicine are shaped by advertising as strongly as aesthetic medicine. Ingredients are celebrated before the studies exist. Treatments are recommended because they sell well. And what goes viral on social media frequently has little to do with the underlying data.

This platform works the other way around: it starts with the published evidence and moves towards a practical recommendation. Some treatments pass that examination convincingly. Others do not. Both outcomes are stated plainly.

Topics

Six areas, one standard.

Every article follows the same structure: mechanism of action, state of the evidence, realistic benefit, risks and a clear assessment.

01

Skincare

Active ingredients, routines and formulations — from retinol and vitamin C to sun protection. Which products have a measurable effect and which do not.

02

Injectables

Botulinum toxin, fillers, biostimulators, skin boosters, PRP and polynucleotides — with duration, risks and realistically achievable results.

03

Procedures

Lasers, microneedling, peels, radiofrequency and ultrasound — non-surgical and surgical procedures compared without embellishment.

04

Anti-Aging

Skin ageing, collagen, nutrition, sleep and prevention. Which anti-aging strategies hold up scientifically — and which merely sound convincing.

05

Medications

Medical compounds relevant to skin, hair and ageing — explained factually, without individual treatment advice.

06

Evidence

Products, treatments and viral trends under systematic review: claim, evidence, benefits, risks, verdict.

Journal

Latest analyses

View all articles

Skincare

Retinol and retinoids: what is actually proven

Few ingredients are advertised so often and explained so rarely. What retinoids actually do, how retinol and tretinoin differ, and who should not use them.

9 min read

Injectables

Botulinum toxin: the complete data sheet

Mechanism, indications, realistic results, duration, risks, side effects, evidence and cost — all nine fields for the best-studied treatment in aesthetic medicine.

11 min read

Evidence

Do collagen supplements work?

One of the best-selling product categories in beauty — reviewed systematically by claim, evidence, benefit, risk and overall verdict.

8 min read

Evidence over marketing

What survives scrutiny?

In the Evidence section, products, treatments and social media trends are examined against a fixed structure — so that conclusions remain comparable rather than a matter of instinct.

Read the reviews
  1. 01

    Claim

    What exactly is being claimed — and by whom?

  2. 02

    Evidence

    What do studies and the medical literature actually show?

  3. 03

    Benefits & Risks

    Which realistic benefits stand against which risks?

  4. 04

    Verdict

    A clear overall assessment — even when it is inconvenient.

Guides & e-books

The knowledge, condensed into one document.

In-depth guides bring together what is otherwise scattered across studies, clinical guidelines and specialist articles — structured, readable and fully referenced.

All guides
Featured

Evidence-Based Anti-Aging Guide

What is actually supported by evidence against skin ageing — from sun protection and retinoids to nutrition, sleep and aesthetic treatments. Including a sober assessment of what supplements can and cannot do.

  • How skin ages: intrinsic and extrinsic factors
  • The four measures with the strongest evidence
  • Active ingredients compared: evidence, effect, limits
  • Treatments: benefit, risk and realistic expectations

€29

Learn more
About the author
Medical knowledge should be understandable without becoming imprecise.

A physician with a surgical background and a particular interest in aesthetic medicine, minimally invasive procedures and the scientific assessment of beauty and anti-aging trends.

[VOLLSTAENDIGER NAME]

Physician

Follow

Also in short form.

Analyses and assessments of current trends — condensed for Instagram, TikTok and YouTube.