Is this serum suitable for sensitive, acne‑prone, or dry skin?

The formula’s core ingredients, water, hyaluronic‑acid derivatives, glycerin and botanical Anthemis Nobilis flower water, are generally well‑tolerated and provide moisturizing benefits for dry skin, but the presence of preservatives such as sodium benzoate and functional agents like pentylene glycol may trigger irritation in highly sensitive or acne‑prone individuals, so a patch test is recommended.

What is the role and benefit of sodium hyaluronate in this serum?

Sodium hyaluronate is a salt form of hyaluronic acid that acts as a humectant, attracting and binding water to the skin’s surface, thereby increasing hydration, plumping fine lines, and improving skin elasticity; its high molecular weight helps form a moisture‑retaining film while its smaller‑molecule counterpart, hydrolyzed hyaluronic acid, penetrates deeper for added smoothing effects.

How often should the serum be applied and does it contain any controversial chemicals?

The serum is designed for once‑daily use, preferably after cleansing and before heavier creams, by applying a few drops and gently massaging; it does contain conventional preservatives (sodium benzoate) and additives such as pentylene glycol and triethyl citrate, which are permitted in cosmetics but may be viewed as controversial by consumers seeking fully preservative‑free or minimalist formulations.

JONZAC, Jonzac

Réhydrate Sérum concentré hydratant

Cosmetic Products

Product Insights

The Réhydrate Sérum Concentré Hydratant by Jonzac is an organic‑certified, concentrated facial serum formulated with a high proportion of water, Anthemis Nobilis flower water, and multiple humectants such as sodium hyaluronate, glycerin, and xylitol to deliver intense hydration. While the formula is enriched with organic botanical extract and hyaluronic‑acid derivatives for moisturizing and skin‑softening benefits, it also includes a suite of preservatives (sodium benzoate) and functional additives (pentylene glycol, triethyl citrate, cellulose gum) that could cause irritation in highly sensitive individuals. Packaged in recyclable paper, the serum is intended for daily application after cleansing, and its concentrated nature allows a few drops to cover the face, making it suitable for users seeking a bio‑certified, high‑performance hydrating boost, provided they tolerate the listed preservatives.

Comparative Analysis

Positioned as a bio‑certified, high‑concentration hydrating serum, it differentiates itself in the skincare market by combining organic Anthemis Nobilis flower water with multiple hyaluronic‑acid derivatives and a plant‑based formulation, targeting consumers who prioritize natural ingredients yet accept a modest amount of conventional preservatives.

Ingredients

Aqua/Water/Eau**,Anthemis Nobilis Flower Water*, Pentylene Glycol, Triethyl Citrate, Cellulose Gum, Sodium Levulinate, Xylitylglucoside, Sodium Hyaluronate, Anhydroxylitol, Amorphophallus Konjac Root Powder, Sodium Benzoate, Xanthan Gum, Glycerin, Xylitol, Sodium PCA, Lactic Acid, Hydrolyzed Hyaluronic Acid, Sodium Hydroxide. * Ingrédients issus de l'agriculture biologique. Ingredients from organic farming. Eau et eau thermale de Jonzac. Water and Jonzac thermal spring water. d'ingrédients d'origine FRANCE 70%

84%

35%

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