Indications
Oxybenzone (also called Benzophenone 3) is a sunscreen ingredient. It is found in sunscreen creams and lotions and in some skin lightening creams for melasma and dark patches, where it protects the skin from sunlight while the main ingredient works. It helps prevent sunburn, sun induced darkening of the skin and long term sun damage.
How It Works
Oxybenzone absorbs ultraviolet (UV) rays from sunlight, mainly UVB and part of the UVA range, and turns them into a small amount of heat. This reduces the UV energy that reaches the deeper skin cells, which lowers the risk of burning, pigment darkening and damage that leads to ageing and skin cancer.
Dosage and Administration
For external use on the skin only. Apply a generous, even layer to exposed skin about 15 to 30 minutes before going out in the sun. Reapply at least every 2 hours, and after swimming, heavy sweating or towel drying. When it is part of a skin lightening cream, use as directed on the label or by your doctor, usually once daily. Avoid the eyes and broken skin.
Interactions
- No important interactions with medicines taken by mouth are known.
- Using several products with strong active ingredients at the same time, such as retinoids or acids, may increase skin irritation.
- Insect repellents containing DEET may increase skin absorption; apply sunscreen first if both are needed.
Contraindications
- Known allergy to Oxybenzone or other benzophenones.
- Do not apply to broken, infected or severely inflamed skin.
Side Effects
Most people use it without problems. Some may get skin redness, itching, stinging or a rash, and rarely an allergic or light triggered skin reaction.
Stop using it and get urgent medical help if you have swelling of the face, lips or eyes, a widespread rash with blistering, or trouble breathing.
Pregnancy and Lactation
Sunscreens are commonly used in pregnancy and breastfeeding. Small amounts of Oxybenzone can be absorbed through the skin, so some people prefer mineral sunscreens (Zinc Oxide or Titanium Dioxide) during pregnancy. Skin lightening creams that also contain Hydroquinone or steroids should be used in pregnancy only on a doctor’s advice. Avoid applying to the breast before feeding.
Precautions and Warnings
- For external use only; do not swallow.
- Sunscreen alone does not give complete protection; also use shade, hats and protective clothing.
- Not recommended for babies under 6 months; keep infants out of direct sun.
- Do a patch test first if you have sensitive skin.
Overdose
Using too much on the skin is unlikely to cause harm beyond irritation. If swallowed, rinse the mouth and seek medical advice.
Therapeutic Class
Sunscreen agent (UV filter, benzophenone).
Storage
Store below 30°C in a dry place, away from direct sunlight and out of the reach of children. Close the tube after use.
Prepared by the Oshud Alo team from standard drug references. For information only; always follow your doctor's advice.