COLLECTION: Astera Sensitive Rituel Haute Tolérance / This highly compatible care offers long-lasting protection for sensitive scalps that react permanently and excessively to external influences. Thanks to the exclusive combination of natural extracts from asteraceae, moringa and witch hazel floral water, this serum acts like an invisible shield to protect the scalp from the effects of pollution, including fine particles PM 2.5. When applied, it provides immediate comfort and well-being. Under dermatological, paediatric and ophthalmological control tested. Suitable for use on children from 3 years. Benefits: It strengthens the scalp's natural defences, reduces its reaction to external influences and provides a feeling of well-being.