Elseve Phytoclear antipelliculaire Shampooing + Soin — ingredient safety report

• Irritation:Dryness and peeling at exfoliating concentrations (0.5–2%).

The pore-clearing BHA exfoliant. Not for young children (salicylate absorption), used cautiously in pregnancy at low leave-on concentrations, and drying for compromised barriers.

• Allergy risk:Fragrance is the single most common cause of cosmetic contact allergy.
• Irritation:Frequent trigger of stinging and redness on reactive skin.

An umbrella term that can hide dozens of undisclosed scent chemicals. Fragrance is the leading cause of allergic contact dermatitis from cosmetics, and dermatologists routinely advise fragrance-free products for eczema, babies and sensitive skin.

• Irritation:Milder than SLS but still drying for compromised skin.

The gentler cousin of SLS used in most mainstream shampoos and washes. Its manufacturing can leave trace 1,4-dioxane, which reputable makers strip out — an issue of quality control rather than the ingredient itself.

• Allergy risk:Oxidized tea tree oil is a well-documented contact allergen.
• Irritation:Irritating when used undiluted or at high concentrations.

A popular natural antibacterial for blemishes that becomes increasingly allergenic as it ages and oxidizes; never use it undiluted.

• Allergy risk:EU-declarable allergen; oxidation products are potent sensitizers.

The citrus-peel scent molecule. Like linalool, it becomes allergenic mainly after oxidizing in opened products.

• Irritation:Sensory irritant; the cooling feeling signals nerve stimulation, not soothing.

The cooling molecule from mint. Refreshing on healthy skin but a genuine irritant for reactive, broken or infant skin.

• Allergy risk:EU-declarable allergen; oxidized linalool is a common patch-test positive.

A floral scent molecule found in lavender and many essential oils. It oxidizes on air exposure into strongly sensitizing compounds, which is why it must be declared on EU labels.

• Allergy risk:EU-declarable allergen with well-documented sensitization.

A rose/geranium scent molecule and one of the more frequently positive fragrance allergens in patch testing.

• Allergy risk:American Contact Dermatitis Society Allergen of the Year 2018.
• Irritation:Can irritate compromised skin at higher concentrations.

A workhorse humectant and penetration enhancer that is fine for most, but a recurring culprit in eczema patients' patch tests.

• Allergy risk:EU-declarable fragrance allergen.

A rose-type scent component on the EU's mandatory-declaration allergen list.

• Allergy risk:EU-declarable fragrance allergen.

A common jasmine-scented ingredient in fine fragrance and skincare, declared as an allergen on EU labels.

• Allergy risk:Rare hypersensitivity reactions, better documented in food than cosmetics.

Tartrazine yellow dye; approved for cosmetics with rare sensitivity reactions reported.

• Allergy risk:Rare reports of sensitivity.

A widely approved blue dye with a benign cosmetic safety record.

• Irritation:Can cause transient, non-allergic flushing/stinging on reactive skin.

A food-grade preservative generally regarded as one of the gentler options; occasional non-immune stinging is its main drawback.