Hidden Formaldehyde in Your Cosmetics
How to identify preservatives that release this harmful chemical
Knowledge Base
Learn About Allergens
Understand the ingredients that might be causing your skin problems. Our guides explain what to look for and why.
Preservatives
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Fragrance
Fragrance Allergies in Cosmetics
Understanding parfum, fragrance mix, and the EU 26 fragrance allergens
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Natural
The Natural Ingredients Myth: Why "Natural" Doesn't Mean Safe
Essential oils, botanicals, and plant extracts can cause severe reactions
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Preservatives
Understanding Parabens: Facts vs Fear
The science behind these controversial preservatives
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Preservatives
Preservative Sensitivity: MI, MCI & Formaldehyde Releasers
Understanding the preservatives that cause the most reactions
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Surfactants
Sulfate Sensitivity: SLS & SLES Explained
Understanding these common surfactants and their effects on skin and hair
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