The new Jonzac serum, priced at €39.50, looks strikingly similar to the one from Krème

€39.50 for 30 ml: The pro-collagen serum is the most expensive product in its line, and its price is on par with that of
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«Biomimetic» collagen, «retinol-like» active ingredient, enzymes, sunflower oil, hyaluronic acid—the two serums share many active ingredients.
Three things it has in common with Krème Paris serum
When comparing the two lists of ingredients, three active ingredients are exactly the same.
Collagen amino acids. Both serums list «Collagen Amino Acids,» which are marketed as “collagen.” These are amino acids—the building blocks of protein—not collagen itself.
Sea fennel extract. Crithmum Maritimum Extract is included in both formulas. The Léa Nature serum describes it as a «retinol-like» active ingredient.
Lactobacillus Ferment. This postbiotic, which supports the skin barrier, is present on both sides, along with hyaluronic acid, caprylic/capric triglycerides, sunflower oil, and tocopherol.
But the similarities don't end there: Both formulas also contain hyaluronic acid, sunflower oil, caprylic/capric triglycerides, and vitamin E.

The main difference is how they are phrased.
The comparison of the formulas ends there, because the textures of the two serums are completely different.
The Jonzac serum has a fairly watery texture, with plenty of moisturizing ingredients and very little oil. It is therefore suitable for all skin types.
In contrast, Krème's formula is a true emulsion, with more oil-based ingredients. I would therefore recommend it more for normal to dry skin.

Points of Concern
No mergers have been announced. The brand highlights its active ingredients without specifying their percentages, which makes it impossible to assess their concentrations.
The perfume. It's advertised as being of natural origin, but just because it's natural doesn't mean it's hypoallergenic. I would have preferred a fragrance-free version.
So, is the price justified?
The serum fits right in with the «pro-collagen» serum market: it’s priced higher than the rest of the line, uses anti-aging marketing language, and contains active ingredients found in competing products.
Should I buy it?
If you're looking for a gentle, certified organic moisturizing serum made in France, this serum is a great choice, especially for your first anti-aging routine.
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The rating depends on your skin type
