Ingredients with a documented concern, from official datasets and our reviewed database.
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 cautionBabies & kids: Use with cautionEczema-prone: High caution
- Allergy risk:Rising cause of contact and photoallergy, especially in children.
- Environmental impact:Accumulates in aquatic life; degrades into benzophenone over time.
A stabilizing UV filter that can degrade into benzophenone as products age, and an increasingly reported allergen — replace old tubes of octocrylene sunscreens.
Sensitive skin: Use with cautionEczema-prone: High caution
- 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.
Sensitive skin: Use with caution
- Allergy risk:Degradation products can cause photoallergy when unstabilized.
The main UVA filter in US sunscreens. Safe when properly stabilized, but it breaks down in sunlight into potentially sensitizing fragments in poorly formulated products.
Babies & kids: Use with caution
- Irritation:Occasional stinging and irritation, mostly around eyes and on damaged skin.
Today's most common preservative, considered safe by the SCCS up to 1%. French authorities advise avoiding it in wipes and diaper-area products for children under 3 as a precaution.
Sensitive skin: Use with cautionBabies & kids: Use with caution
- Irritation:Can irritate sensitive or compromised skin.
A synthetic preservative capped at 0.3% in the EU; generally tolerated but a known occasional irritant.
Pregnancy: Use with cautionBabies & kids: Use with caution
A UVB filter the EU sharply restricted in 2022 after its scientific committee flagged potential endocrine effects at former use levels.
- Environmental impact:Poorly biodegradable; can remobilize heavy metals in waterways.
A metal-binding stabilizer that is safe on skin at the tiny amounts used; its criticism is environmental persistence.
