SPF Analysis and PA+ Factor Testing in Sunscreens

SPF Analysis and PA+ Factor Testing in Sunscreens

SPF Analysis and PA+ Factor Testing in Sunscreens are essential methods used to determine the UVB and UVA protection performance of sunscreen products.

Main Tests

• SPF Testing (ISO 24444)
• In Vitro SPF (ISO 23675)
• UVA Protection Factor (ISO 24443)
• Critical Wavelength Determination
• Water Resistance Testing

Regulatory Framework

• EU Cosmetics Regulation (EC) No 1223/2009
• European Commission Recommendation 2006/647/EC

Conclusion

SPF and PA+ testing provide scientific evidence supporting sunscreen efficacy claims and ensure compliance with international cosmetic regulations.