Editorial note
Map of Health content is prepared with an evidence-based approach. References are provided for transparency.
Medical disclaimer
This content is for informational purposes only and does not replace professional medical advice, diagnosis, or treatment. If you have an urgent medical concern, seek immediate care.
"Understanding the abbreviations on cosmetic labels helps you make informed choices about ingredients, product safety, and effectiveness for your skin."
On this page:
WHAT DO THE ABBREVIATIONS ON COSMETIC LABELS MEAN?
| Abbreviation | Meaning | Description |
| INCI | International Nomenclature of Cosmetic Ingredients | System that lists ingredients with scientific international names. |
| PAO | Period After Opening | Time to use after opening (e.g., 12M = 12 months). |
| SPF | Sun Protection Factor | Indicates UVB protection factor (e.g., SPF 30). |
| UVA | Ultraviolet A Protection | Provides protection against UVA rays; usually symbolized in a circle. |
| PEG | Polyethylene Glycol | Used as a carrier and solvent; may irritate sensitive skin. |
| SLS/SLES | Sodium Lauryl / Laureth Sulfate | Foaming agents; may dry or irritate sensitive skin. |
| EDTA | Ethylenediaminetetraacetic Acid | Stabilizes metal ions in the formula; acts as a preservative. |
| pH | Potential of Hydrogen | Indicates acidity/alkalinity level; typically 4.5-6.5 is preferred for skin. |
| NPA | Natural Products Association | International certificate indicating natural ingredients. |
| ECOCERT | Ecological and Organic Cosmetic Certification | Certification for organic and eco-friendly products. |
| EWG | Environmental Working Group | Rates ingredient safety; lower score is safer. |
| CRUELTY-FREE | Not tested on animals | Usually represented with a rabbit symbol. |
Assoc. Prof. Muhammet Emin Çam
Rector Advisor, Vice Dean, and Faculty Member - Istanbul Kent University, Faculty of Pharmacy, Departmant of Pharmocology
Visiting Researcher&Lecturer - University College London, Mechanical Engineering and Faculty of Medicine, UK
Visiting Lecturer - University of Aveiro, Faculty of Biomedical Engineering, Portugal
Visiting Researcher&Lecturer - University College London, Mechanical Engineering and Faculty of Medicine, UK
Visiting Lecturer - University of Aveiro, Faculty of Biomedical Engineering, Portugal