Posted by Cristina Mejia
In a market saturated with products, it's vital to know which compounds can harm your skin and your health. Knowing the toxic ingredients and their INCI nomenclature will allow you to choose safer and more effective cosmetics.
What do we mean by “toxic ingredient”?
Definition and origin
A toxic ingredient is any substance that, at normal concentrations, can cause irritation, allergies, or disrupt biological processes. Regulations vary by country's health authority.
Impact on skin and health
- Irritation and dermatitis: redness, itching or scaling.
- Hormonal alterations: they act as endocrine disruptors.
- Accumulation: They persist in tissues and could have long-term effects.
Main toxic ingredients to avoid
Parabens
Preservatives that extend shelf life but are associated with hormonal changes . They appear as Methylparaben , Propylparaben , etc.
Phthalates
They're used in fragrances to help maintain scent. Look for names like Diethylphthalate . They're linked to endocrine disruption .
Sulfates (SLS/SLES)
Foaming agents such as Sodium Lauryl Sulfate or Sodium Laureth Sulfate can dry out the skin and cause ongoing irritation.
Formaldehyde and releasers
Potent preservatives (e.g. Quaternium-15 , DMDM Hydantoin ) with carcinogenic potential.
Non-biodegradable silicones
Dimethicone or Cyclopentasiloxane -type compounds. They generate an occlusive layer and accumulate in the environment.
How to identify them on the label (INCI)
Reading the list of ingredients
They are ordered by concentration: the highest concentrations are listed first. Recognize common suffixes: -paraben , -phthalate , sulfate .
Recommended tools and apps
- Scan INCI: Scans the barcode and displays risks.
- Think Dirty: Rate products based on ingredients.
Safe alternatives and certifications
Natural and gentle ingredients
- Vegetable oils: jojoba, rosehip.
- Botanical extracts: green tea, chamomile.
Trusted Certifications
- EWG Verified: guarantees absence of toxins.
- COSMOS Natural: guarantees a minimum of 95% natural ingredients.
- Plastic Negative : commitment to the environment.
Best practices
Always check the INCI, use scanning apps, and choose products with safety seals. Your skin and the planet will thank you!
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