Privacy Policy

PERSONAL DATA · GDPR EU 2016/679

Privacy policy.

Last updated: 16 May 2026 — hydrogenyx.fr

HYDROGENYX processes your personal data in strict compliance with the General Data Protection Regulation (EU 2016/679 — GDPR) and the amended French Data Protection Act.

Data collected

When you place an order or sign up to the La Source newsletter, we collect: identity (first name, last name), contact details (postal address, email, optional phone), transaction data (order, payment), connection data (IP, browser type, pages visited).

Processing purposes

  • Process and ship your order
  • Contact you for after-sales service and warranty
  • Send you the La Source newsletter if you subscribed
  • Improve our service and product catalog
  • Measure the effectiveness of our marketing campaigns (aggregated, anonymized)

GDPR sub-processors

We work exclusively with sub-processors compliant with GDPR or covered by the EU–US Data Privacy Framework (DPF).

  • Shopify International Limited (Ireland) — hosting & store back-office
  • Klaviyo Inc. (United States, DPF-certified) — La Source newsletter delivery
  • Stripe Payments Europe Limited (Ireland) — payment processing
  • Meta Platforms Ireland Limited — Instagram & Facebook advertising
  • Google Ireland Limited — GA4 audience measurement
  • Colissimo / La Poste (France) — France & EU shipping

Retention period

  • Orders & invoicing: 10 years (accounting obligation)
  • La Source newsletter: until unsubscription via link in email footer
  • Analytics: 14 months
  • Customer account: 3 years with no login then deletion

Your GDPR rights

You have the following rights regarding your personal data at any time:

AccessArt. 15 GDPR
RectificationArt. 16 GDPR
ErasureArt. 17 GDPR
RestrictionArt. 18 GDPR
PortabilityArt. 20 GDPR
ObjectionArt. 21 GDPR

Exercise: contact@hydrogenyx.fr. Reply within 30 days (art. 12 GDPR). In case of difficulty, you may file a complaint with the CNIL: www.cnil.fr.

Cookies & trackers

We use technical cookies (cart, session) strictly necessary for the operation of the site, as well as GA4 audience measurement cookies and Meta advertising remarketing cookies. Your browser's “Do Not Track” preferences are respected.


Data Protection Officer

DPO: Paul Fournier — contact@hydrogenyx.fr

HYDROGENYX · Paul Fournier micro-entrepreneur · France · Lyon 7ᵗʰ workshop