Lazartigue
Sérum D'Exception Thermo-Protecteur, 50ml
Leave-in hair serum enriched with chia seed extract. It hydrates, tames the hair, seals split ends, and protects hair from heat.
Regulated composition
Safety
True or false, at a glance
Free from CMR-classified ingredients?
Yes
Free from endocrine disruptors?
Yes
Free from fragrance allergens (Annex III)?
No
Contains: Alcool benzylique
Fragrance-free?
No
Contains: Eau, Propanediol, Triglycéride caprylique/caprique…
This leave-in hair serum is enriched with chia seed extract. It is applied to the lengths to hydrate, tame the hair, and seal split ends. Its formula provides thermal protection for the hair.
Ingredients
Composition
Every ingredient is clickable — discover its role and the products that contain it.
EauFragrancePropanediolFragranceTriglycéride caprylique/capriqueSkin conditioningParfumFragranceHuile de marulaHair conditioningPolyquaternium-37Hair conditioningChlorure d'hydroxypropyltrimonium de guar hydroxypropyléHair conditioningLaurate d'isoamyleSkin conditioningBenzoate de sodiumFragranceGlycérineSkin conditioningÉthylhexylglycérineSkin conditioningExtrait de graines de ChiaSkin conditioningVitamine ESkin conditioningTréhaloseHumectantXylitolSkin conditioningGlucoside de caprylyle/caprylFragranceLinoléate d'éthyleSkin conditioningHuile de sojaSkin conditioningGlutamate de tétrasodium diacétateChelatingAcide citriqueFragranceOléate d'éthyleSkin conditioningOléate de sorbitanFragrancePhosphate de sodiumFragranceAlcool benzyliqueFragranceAcide capryliqueFragrancePentaérythrityle tétra-di-t-butyl hydroxyhydrocinnamateFragrance
Regulatory framework
What the authorities say
| Authority | Status |
|---|---|
| Commission européenne (CosIng, Règl. 1223/2009) — via Benzoate de sodium | Autorisé sous conditions |
| Commission européenne (CosIng, Règl. 1223/2009) — via Acide citrique | Autorisé sous conditions |
| Commission européenne (CosIng, Règl. 1223/2009) — via Alcool benzylique | Autorisé sous conditions |
What the brand says
The brand’s claims
- protects the hair fiber from heat up to 230°CStatement printed on the packaging
Information stated by the brand, under its own responsibility. Neither an assessment by Lou nor an approval by any authority.
The brand
Lazartigue
🔒
Independent explainer page, factual only (composition, authorities, reviews). This is not medical advice — for your situation, ask a pharmacist or a healthcare professional for advice.
Trust
Transparency & method
Équipe Lou
Published on 7/17/2026Updated on 7/17/2026Sources verified on 7/17/2026
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