FAQ's

Eau Thermale Jonzac is a French skincare brand formulated with mineral-rich Jonzac thermal spring water, known for its soothing, repairing, and hydrating benefits. The line is specifically designed for sensitive and reactive skin and follows strict dermatological and organic standards.

All Eau Thermale Jonzac products are manufactured in France, close to the Jonzac thermal spring, ensuring full control over quality, purity, and safety.

Jonzac thermal spring water is naturally rich in minerals and trace elements. It is known for its soothing, anti-inflammatory, and barrier-repairing properties, making it ideal for sensitive skin.

The skin microbiome plays an essential role in skin aging, regulating the immune response, resistance to ultraviolet rays, as well as the metabolism and biosynthesis of substances related to skin aging. Eau Thermale Jonzac formulas use gentle ingredients and bioactives that help maintain microbiome balance and reinforce the skin’s defenses. In the Sublimactive range, Eau Thermale Jonzac also features the patented Microbiome-Thermale Complex: a blend of Eau Thermale Jonzac thermal spring water and postbiotics to help protect and strengthen the skin barrier, combined with red algae known for its anti-wrinkle and firming action.

Eau Thermale Jonzac formulas are certified organic according to COSMOS Organic and ECOCERT. Certification details are listed on each product.

Eau Thermale Jonzac formulas are free from parabens, sulfates, mineral oils, phenoxyethanol, and many other potentially irritating or controversial ingredients.

Preservatives vary by formula Eau Thermale Jonzac selects only mild, approved preservatives that meet organic certification standards and are considered safe for sensitive skin.

Full INCI ingredient lists are available on each product page and on the product packaging.

Eau Thermale Jonzac is designed for all skin types, even the most sensitive ones. The products focus on hydrating, brightening, and anti-aging benefits, while supporting skin comfort and tolerance.

Yes, Eau Thermale Jonzac products are cruelty-free and vegan-friendly.

Eau Thermale Jonzac is different because it brings together the best of both worlds: dermatologist-level performance and clean, certified organic formulas. Our skincare is powered by patented, mineral-rich Jonzac thermal spring water—the only thermal spring water recognized for its anti-aging properties—to deliver soothing, visible results. The water is also naturally isotonic, meaning it has perfect affinity with the skin for optimal tolerance, even on sensitive or reactive skin. With a very high level of natural-origin ingredients, our formulas help support the skin barrier and maintain microbiome balance, offering high-performance skincare that’s safe, gentle, and eco-conscious.

Current U.S. lines include Essentials, Rehydrate, Sublimactive, and Hyalu Activ C, each targeting specific skin needs such as hydration, soothing, radiance, or anti-aging.

All Eau Thermale Jonzac products are formulated for sensitive skin, but the Rehydrate and Essentials ranges are particularly recommended for highly reactive or easily irritated skin types.

All Eau Thermale Jonzac formulas are suitable for eczema- or rosacea-prone skin because they follow a strict formulation charter dedicated to sensitive skin. Designed for high tolerance and formulated without controversial ingredients, they are appropriate for even the most demanding and reactive skin types. For severe or persistent conditions, we recommend consulting a dermatologist.

Yes. Eau Thermale Jonzac formulations are designed to be non-comedogenic and suitable for combination and acne-prone skin.

Our products contain 100% natural, high-tolerance fragrances—never synthetic—designed to be respectful of both human health and the environment.

Eau Thermale Jonzac products are safe to use during pregnancy and breastfeeding. We recommend reviewing ingredient lists with your healthcare provider for personal guidance.

Results vary by product, but users often notice improved comfort and hydration within a few days. All formulas have been tested under dermatological control and their efficacy has been clinically proven.

Take our skincare quiz and find the collection that best suits your skincare goals and then follow this simple four step routine:

1. Step 1: Cleanser (Essentials Collection)
2. Step 2: Serum( (Rehydrate/Hyalu Activ C/Sublimactive)
3. Step 3: Eye Cream (Rehydrate/Sublimactive)
4. Step 4: Moisturizer (Rehdyarte, Sublimactive

Yes. Eau Thermale Jonzac’s gentle formulas can be combined with most active ingredients. If your skin is highly sensitive, introduce new products gradually.

Yes. All formulas are tested under dermatological control and efficacy is clinically proven.

Recent clinical studies show that Jonzac thermal spring water helps soothe irritation, support skin repair, and strengthen the barrier thanks to its balanced mineral content and purity.

Eau Thermale Jonzac prioritizes eco-design, using recycled and recyclable materials whenever possible and reducing environmental impact through responsible packaging choices.

We are committed to making our packaging recyclable by prioritizing materials that are mostly recyclable and recycled.

Eau Thermale Jonzac is a member of the international 1% for the Planet initiative and donates 1% of its sales each year to accredited environmental associations, including Générations Futures and Fondation Eau, Neige & Glace, which are committed to fighting freshwater pollution and ensuring the quality of this vital element.