Calamine: the pink secret that soothes sunburn in minutes
Tingling, redness, itchy blisters... These skin warning signs can quickly become obsessive. Among the leading soothing active ingredients is calamine, Zinc oxide-based pink powder remains an essential part of any skincare routine. Its mineral simplicity hides multiple mechanisms of action that continue to earn it a special place in beauty kits.
1. What is calamine?
– Origin and composition
Calamine is a natural blend consisting of approximately 98 % of zinc oxide (ZnO) and approximately 2 % of ferric oxide (Fe₂O₃), sometimes supplemented by traces of zinc carbonate. Its pink color comes exclusively from ferric oxide, an inert mineral pigment.
– An ingredient with three cosmetic functions
In European regulations, calamine is classified as an absorbent, skin protectant, and opacifier. It helps capture excess moisture, forms a protective film, and reduces the transparency of formulas.
2. How does it affect the skin?
- Immediate cooling effect : The evaporation of the water phase in a calamine lotion provides a cooling effect that reduces the burning sensation.
- Absorbent and drying action : ZnO absorbs exudates and sweat, limiting maceration and secondary infection.
- Modulation of histamine release : Zinc slows down the inflammatory cascade responsible for pruritus, resulting in a rapid decrease in the urge to scratch.
- Formation of a barrier film : after drying, a thin inert layer protects the skin from friction and external allergens.
3. When to use it?
Calamine is used as a complementary treatment for:
- eczema flare-ups, atopic dermatitis; ;
- insect bites; ;
- contact urticaria, miliaria; ;
- superficial sunburn; ;
- diaper rash in infants.
Its high tolerance profile allows it to be used in children and during pregnancy, under medical supervision in case of doubt.
4. Dosage forms and instructions for use
- Shake lotion“ : Shake the fluid suspension well, then apply a thin layer up to four times a day.
- Cream or gel: More occlusive textures, ideal for dry or reactive areas.
- Loose powder: raw version, sometimes incorporated into masks or talcum powders.
5. Precautions and possible side effects
Zinc oxide, the main component of calamine, is considered safe up to 25% in skin products not intended for inhalation, whether used as a protective agent or UV filter.
Calamine confirms its status as a reliable dermatological ally for quickly soothing irritation and itching, without resorting to complex formulas.
Erythematous reactions or excessive dryness may nevertheless occur, especially on very dry or sensitive skin. If symptoms persist, discontinue use of the product and consult a doctor.
