Soothing, protective, hydrating: thermal water has established itself as a star ingredient in dermocosmetics. Much more than a simple excipient, it acts at the heart of formulas to strengthen the skin barrier, preserve the microbiome and meet the needs of the most sensitive skin. Focus on this water like no other — and on 8 essential treatments to enjoy it every day.
Thermal water, a pillar of French dermocosmetics
The keystone of dermocosmetics, thermal water is naturally rich in minerals and trace elements. Each source has its signature – sulfur, bicarbonate, rich in silica or calcium – but all share essential properties: soothing, protection, hydration and strengthening of the skin barrier.
Unlike demineralized water used in the majority of classic cosmetics, thermal water is an active ingredient in its own right. “It is not a simple excipient, it is a real treatment“, recalls Anne-Laure Nguyen, general director of Avène. Result: formulas capable of treating sensitive skin while potentiating the action of other active ingredients such as hyaluronic acid or vitamin C.
High tolerance and naturalness: formulas under control
Formulating with thermal water represents a technical challenge, due to its mineral richness. But this requirement is also a strength: thermal brands develop treatments according to strict specifications, with high dermatological tolerance, often without perfume and with a minimum of controversial ingredients.
In recent years, the trend has also been towards naturalness. Brands like Eau Thermale Jonzac, Olisma or Alphanova offer certified organic treatments or treatments with a high proportion of ingredients of natural origin. Objective: to reconcile dermatological effectiveness and respect for the most fragile skin.
Sensitive skin… and all others
In France, more than one in two people report having sensitive skin. Pollution, stress, climatic variations, cosmetic overuse: the skin is put to the test. But even without any particular problem, integrating thermal water treatments helps preserve skin balance, strengthen natural defenses and prevent premature aging.
Recent research goes even further, with the development of postbiotic active ingredients, studies on collagen and measured effects on the skin microrelief. Thermal dermocosmetics is thus establishing itself as a true “skin medicine”, combining safety, effectiveness and innovation.
8 thermal water treatments to integrate into your routine
Roséliane Anti-Redness Corrective Smoothing Serum — Uriage
A targeted serum for skin prone to redness, which soothes, smoothes and strengthens the skin barrier thanks to Uriage thermal water.
Sublimactive Comforting Night Balm Mature Skin — Eau Thermale Jonzac
A nourishing and soothing night treatment, formulated for mature skin, which helps to regenerate the skin while respecting sensitive epidermis.
Hydra+ Rich Moisturizing Cream — Alphanova
A certified organic cream, rich and comfortable, ideal for dry to very dry skin looking for lasting hydration and softness.
XeraCalm Nutrition Moisturizing Balm — Avène
An ultra-nourishing treatment for very dry and atopic-prone skin, which soothes feelings of discomfort and strengthens the skin barrier.
L’Eau d’Evaux Universal Body Milk (Milk Caress) — Olisma
A light and sensory body lotion, which hydrates, softens and respects sensitive skin thanks to Évaux-les-Bains thermal water.
Fundamental 95 with Hyaluronic Acid — Balaruc-les-Bains
A moisturizing concentrate combining thermal water and hyaluronic acid to plump the skin and strengthen its natural balance.
Mineral 89 Night Recovery Moisturizing Cream — Vichy
A strengthening night treatment, enriched with Vichy volcanic water and hyaluronic acid, for more resilient skin when you wake up.
Cicaplast B5+ Cleansing Gel — La Roche-Posay
A soothing cleansing gel, ideal for fragile skin, which gently cleanses while supporting skin repair.