ISO 24444 Certification Service

ISO 24444:2019 – Certification for Sun Protection Factor (SPF) Testing of Sunscreen Products

Overview
ISO 24444:2019 is an internationally recognized standard that specifies a reliable and reproducible in vivo method for determining the Sun Protection Factor (SPF) of sunscreen products. SPF is a critical parameter used globally to indicate the level of protection a sunscreen provides against ultraviolet radiation, particularly UVB rays. This standard ensures that sunscreen formulations are tested under consistent and scientifically validated conditions to determine their effectiveness.

What is ISO 24444:2019
ISO 24444:2019 outlines a test procedure involving human volunteers to measure the SPF value of sunscreens. It applies to products intended to be applied to human skin and left on to provide UV protection. The SPF value determined using this method is an essential labeling and regulatory requirement in many countries, making compliance with this standard crucial for manufacturers and brands in the cosmetics and skincare industry.

Why ISO 24444:2019 Certification
Achieving ISO 24444:2019 certification demonstrates a brand’s commitment to quality, safety, and consumer protection. With increasing regulatory scrutiny and consumer awareness about sun protection, certified SPF testing enhances product credibility in the market. It also aligns with global cosmetic compliance requirements and supports entry into regulated international markets.

Requirements of ISO 24444:2019
Organizations seeking ISO 24444:2019 certification must adhere to specific methodological and procedural requirements, including:

• Use of healthy human volunteers within a defined age range and skin type classification

• Standardized application of sunscreen products in controlled quantities

• Use of calibrated UV irradiation equipment

• Accurate measurement of the Minimal Erythema Dose (MED) on protected and unprotected skin

• Documentation of testing conditions, environmental controls, and ethical approvals

The method requires strict adherence to laboratory best practices, volunteer safety protocols, and precise data collection to ensure reproducibility and reliability of results.

Certification Process

1. Application Submission – The organization submits a request for certification with product and testing details.

2. Document Review – Assessment of laboratory setup, ethical compliance, test protocols, and volunteer management procedures.

3. On-site Audit – Evaluation of testing environment, equipment calibration, and trial execution methods.

4. Test Result Verification – Review of SPF testing results and alignment with ISO 24444:2019 standards.

5. Certification Issuance – Upon successful compliance, ISO 24444:2019 certification is granted.

6. Surveillance Audits – Periodic audits to ensure continued compliance and maintenance of standard procedures.