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Endocrine disruptor-free

Cosmetics selected to limit exposure to controversial ingredients every day.

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100% OF FORMULAS DECODED

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TRAINED BY A TOXICOLOGIST

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WHEN IN DOUBT, WE LEAVE IT OUT

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Endocrine disruptor-free cosmetics: an informed selection for your routine

Endocrine disruptors are substances that may interact with the hormonal system. Their presence has been studied in various everyday products, including certain cosmetics applied to the face, body or hair. In Europe, regulations strictly govern the composition of beauty products. Several substances have been banned, others are restricted or monitored by health authorities. The issue is therefore not a regulatory vacuum, but an evolving scientific debate on repeated, cumulative exposure.

In this collection, we have chosen to list cosmetics formulated without substances identified or suspected as endocrine disruptors by health agencies, or regularly cited in the scientific literature. Our approach is based on the precautionary principle: when scientific doubts arise around an ingredient, we may decide not to include it in our selection.

This approach can sometimes go beyond European regulatory requirements. It is based on evolving scientific knowledge, expert debates and the recommendations issued by health authorities. In some cases, a product may also be removed from our catalogue if new scientific or regulatory data changes the assessment of an ingredient.

Understanding the ingredients concerned

Among the most debated substances are certain parabens, phthalates, bisphenols, triclosan and some chemical UV filters. Not all of them are banned, and their assessment is based on safety thresholds defined by the European authorities. Scientific discussions focus in particular on cumulative exposure and on what is known as the cocktail effect, linked to using several cosmetic products over the course of a single day.

In our selection, every product is analyzed through its INCI list, but also through several complementary criteria. We take into account the type of product (rinse-off or leave-on), how often it is used in a beauty routine, and the dosage of the ingredients in the formula. This analysis allows a more precise assessment of the potential exposure linked to daily use.

Particular attention to sensitive groups

Some people choose to limit their exposure to endocrine disruptors because of specific health situations. Pregnant women, infants and children are often mentioned in studies because of the sensitivity of hormonal development.

Other groups may also feel concerned, particularly women facing hormonal disorders such as polycystic ovary syndrome (PCOS), endometriosis, menopause or certain hormone-dependent cancers. People living with inflammatory or chronic conditions (digestive disorders, irritable bowel syndrome, Crohn's disease) also take an interest in the composition of the products they use every day.

Scientific research does not always establish a direct link between these conditions and exposure to the substances found in cosmetics. Nevertheless, some health professionals recommend a precautionary approach: limiting overall exposure to controversial ingredients whenever possible.

Transparency and high standards in our selection

Our approach is based on analyzing compositions, the consistency of formulas and the transparency of the brands we offer. We favor products with clear, understandable ingredient lists, and formulations designed to limit the presence of controversial substances.

Choosing endocrine disruptor-free cosmetics does not replace medical advice and is not a guarantee of total absence of risk. It is a step towards more streamlined formulas, as part of a responsible approach to wellbeing, based on the available scientific data and a desire to reduce certain exposures whenever possible.

Why Blozenn

Because you shouldn't need a chemistry degree or to speak Latin to read a cosmetic label.
Blozenn was born from three illnesses and one conviction: we have the right to know what we put on our bodies.

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We break down every formula

The order of the ingredients, their real dosage, what each one is for, and the cocktail effect.

A toxicologist trained us to do it and now we sort for you.

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The precautionary principle

When there's a doubt about an ingredient, at Blozenn there is none: we exclude it automatically.

And when no product in a category passes, we don't sell it: that's the case for nail polish, for example.

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A charter stricter than organic

It goes beyond
European regulations, organic and natural.

Every brand provides us with its complete file: safety, traceability, heavy metal analyses, non-nano certificates.

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We started by doing it for ourselves

Two years poring over compositions, brand by brand, and training before sorting for you.

Because we couldn't afford to get it wrong.

The Blozenn subscription

Discover the Blozenn Beauty Pouch

Every 2 months, a selection of products decoded one by one, delivered in an upcycled pouch.