Description

AQUA, DICAPRYLYL ETHER, GLYCERIN, Hydroxyethylpiperazine ethane sulfonic acid (Hepes), SQUALANE (Squalane, Hydrogenated Oil), PROPANEDIOL, SODIUM CHLORIDE, MACADAMIA TERNIFOLIA SEED OIL (Macadamia vegetable oil), BETAINE (Sugar), 3-O-ETHYL ASCORBIC ACID (Vitamin C derivative), Nasturtium officinale extract (Watercress), SODIUM CITRATE, SODIUM HYALURONATE (Hyaluronic acid), SODIUM HYDROXIDE, HELIANTHUS ANNUUS SEED OIL (Sunflower vegetable oil), GELLAN GUM, ADENOSINE (Active), CAPRYLYL GLYCOL, VITREOSCILLA FERMENT, CITRIC ACID, TRISODIUM ETHYLENEDIAMINE DISUCCINATE, XANTHAN GUM, ETHYLHEXYLGLYCERIN, TOCOPHEROL (Vitamin E), SALICYLIC ACID (Salicylic acid), PHENOXYETHANOL, 75130 (Orange dye), CARAMEL, CI 19140 (Yellow dye), CI 42090 (Blue dye), LINALOOL (Regulated allergen), LIMONENE (Regulated allergen), CITRAL (Regulated allergen), CITRONELLOL (Regulated allergen), PERFUM (Perfume)

My Doctor's Diagnosis: Analysis and Target

Regenerating and moisturizing serum Biotherm Aquasource is primarily intended for dry to very dry skin prone to dehydration, discomfort, and dullness. My analysis of the formulation reveals a clear desire on the part of the brand to target the restoration of the skin barrier and provide intense hydration, while promoting cell regeneration. This product is part of a daily skincare routine for skin that has been weakened by external aggressions or climatic variations.

Formula Analysis: Key Assets

Three major assets catch my attention:

• Hyaluronic acid (Sodium Hyaluronate) : known for its ability to retain up to 1,000 times its weight in water, it intensely hydrates and plumps the skin, reducing feelings of tightness.
• Squalane : this biomimetic emollient strengthens the lipid barrier, limits water loss, and provides softness and suppleness, ideal for dry skin.
• 3-O-Ethyl Ascorbic Acid : a stable derivative of vitamin C, which protects against oxidative stress, brightens the complexion, and stimulates collagen synthesis, contributing to skin regeneration.

The presence of plant oils (macadamia, sunflower) and adenosine complements the moisturizing and soothing action, while promoting skin repair.

Tips and Application Ritual

I apply this serum morning and night to clean skin, before moisturizer. It fits perfectly into a routine with soothing or moisturizing active ingredients (panthenol, ceramides). I avoid combining it with products that are highly concentrated in exfoliating acids or retinoids to limit the risk of irritation, especially on sensitive skin.

My Final Verdict & Safety Opinion

This Biotherm serum stands out for its moisturizing effectiveness and its ability to restore the skin barrier. Its light texture penetrates quickly without leaving a greasy residue. The only downside is that it contains fragrance and potential allergens (linalool, limonene), which may not be suitable for very reactive skin. In conclusion, it is an excellent choice for dry skin in need of comfort, radiance, and protection.

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