Ingredients with a documented concern, from official datasets and our reviewed database.
Sensitive skin: Use with cautionDry skin: High cautionPregnancy: Use with cautionBabies & kids: Best avoidedEczema-prone: High caution
- 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.
Sensitive skin: High cautionDry skin: High cautionEczema-prone: Best avoided
- Irritation:Comparable irritation profile to SLS in leave-on contact.
A strong anionic cleanser similar to SLS, appropriate only in well-formulated rinse-off products.
Sensitive skin: Best avoidedPregnancy: Use with cautionBabies & kids: Best avoidedEczema-prone: Best avoided
- Allergy risk:Fragrance is the single most common cause of cosmetic contact allergy.
- Irritation:Frequent trigger of stinging and redness on reactive skin.
Caredermis curated dermatological review
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.
Sensitive skin: Use with cautionEczema-prone: High caution
- 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.
Sensitive skin: Use with cautionEczema-prone: High caution
- 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.
fragrance · cooling agent
Severity 4/10EditorialSensitive skin: High cautionBabies & kids: Use with cautionEczema-prone: High caution
- Irritation:The cooling sensation is mild sensory irritation; can burn on damaged skin.
Provides a fresh tingle that is actually mild irritation; problematic on compromised or young skin.
Sensitive skin: Use with cautionEczema-prone: High caution
- Allergy risk:EU-declarable allergen; lemon-scented sensitizer.
The lemon-scent molecule in lemongrass and citrus oils, a recognized contact allergen requiring EU label declaration.
Sensitive skin: Use with cautionEczema-prone: Use with caution
- Allergy risk:Named Allergen of the Year 2004; impurities (amidoamine) drive most reactions.
A mild coconut-derived surfactant in countless 'gentle' cleansers. Most allergy is caused by manufacturing impurities, so quality varies by brand.
- 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.
BENZOIC ACIDRegulatory dataIrritationEU CLP Skin Irrit. 2EU CLP Eye Dam. 1CITRUS LIMON FRUIT EXTRACT / LEMON FRUIT EXTRACTRegulatory dataAllergy riskEU CosIng Annex III (declarable / restricted)HEXYLENE GLYCOLRegulatory dataIrritationEU CLP Skin Irrit. 2EU CLP Eye Irrit. 2