How old are you
really?
Two free, complementary measurements: what your blood says, and what your face shows.
Your biological age, fast
In 2 minutes, using 9 markers from a standard blood panel, estimate the real age of your body. PhenoAge model (Levine, 2018).
Calculate my age → Free · Photo analysisVis*Age
The age your face revealsOne guided photo, and you get a personalized report by email: apparent age, a zone-by-zone reading, concrete advice.
Analyze my face →Want to go further? The full biological age test refines the result across 25 biomarkers (Bortz method).
Join the Longevity Circle.
Our private, completely free community: daily conversation between members, expert advice, monthly live sessions and longevity challenges, to add life to your years.
A complete approach,
built around your health.
The 9 hallmarks of aging identified by science. Each pillar brings together demanding, sourced content.
Genomic instability
Protecting the integrity of your genetic blueprint.
ExploreTelomere attrition
The biological clock at the tip of your chromosomes.
ExploreEpigenetic alterations
Your genes do not change. How they are read does.
ExploreLoss of proteostasis
The cellular housekeeping that slows down with age.
ExploreNutrient sensing
The sensors that choose between storing and repairing.
ExploreMitochondrial dysfunction
Your power plants, and what wears them out.
ExploreCellular senescence
The cells that stop dividing, and stay.
ExploreStem cells
The reserve that repairs your tissues, and how it thins out.
ExploreCell signaling
Chronic inflammation: when the signals get scrambled.
ExploreThe latest articles.

Constipation after 60: 6 proven causes and when to see a doctor
Constipation after 60 usually has identifiable causes, from low fiber intake to everyday medications. Here are the six causes backed by research, the measures tested in trials and the warning signs that call for a doctor.

Hypothyroidism: What TSH Is Really Normal After 60?

Shingles: 5 proven facts about the risk after 50 and the vaccine

CRP levels: normal range by age and what a high result signals
The latest podcasts & videos.
Retrouver votre autonomie après 70 ans : par où commencer
Peptides de cuivre pour la peau : celui que je recommande
Longévité : les 3 changements qui ont transformé ma santé
Liberté et longévité : vivre où l’on veut pour vivre plus vieux
Learning to
take care of yourself.
Le code MFLEX : Programme de flexibilité métabolique
Un programme de 12 semaines pour réduire la graisse viscérale et restaurer la flexibilité métabolique. Comprendre, reprogrammer, stabiliser, sans régime ni promesse spectaculaire.
Neuro-Longévité : Programme 8 semaines pour votre BDNF
Un programme de 8 semaines pour comprendre, mesurer et augmenter votre BDNF, l'engrais de votre cerveau. Diagnostic, mouvement, nutrition, sommeil et plan d'action mesurable.
Take stock of
your health.
6 free, confidential self-assessments covering sleep, nutrition, activity, mental balance, prevention and longevity. Place your habits and get targeted recommendations in under 3 minutes.
Experts who put their
name to every piece.
Jean Marie Butterlin
Longevity and wellbeing expert, offering personalised support for optimal health.
Dr. Moulay Ali Belghiti
Regenerative and integrative medicine, longevity, 30 years of expertise in the service of lasting health.
Dr. Denys Coester
Anaesthetist and intensive care physician, specialist in longevity medicine and prevention. Author of « Prenez votre longévité en main ! » (Larousse) and « Biohacking » (Eyrolles).