Yes. We assess characteristics such as pH, viscosity, density, flash point and mass, and can quantify active UV filters (including zinc oxide, titanium dioxide, homosalate, octocrylene, oxybenzone and more), preservatives, heavy metals and benzene using advanced analytical techniques such as HPLC/UPLC, GC, and ICP-OES/ICP-MS.
Sunscreen efficacy testing methods
We evaluate sunscreen performance using globally recognized in vivo and in vitro testing methods to verify product safety, labeling accuracy and market compliance.
In vivo methods:
- ISO 24444:2019 – Determination of SPF
- ISO 24442:2022 – Determination of UVA Protection
- ISO 23698:2024 – Measurement of Sunscreen Efficacy by Diffuse Reflectance Spectroscopy (HDRS)
- ISO 16217:2020 – Water Immersion Procedure for Determining Water Resistance
- ISO 18861:2020 – Percentage of Water Resistance
- US FDA Final Rule 2011 – Labeling and Effectiveness Testing: Sunscreen Drug Products for OTC Human Use
- US FDA Proposed Order 2021 – Amending OTC Monograph M020: Sunscreen Drug Products for OTC Human Use
- China Methods (NMPA Certified)
- AS/NZS 2604:2021 – Sunscreen Products Evaluation and Classification
In vitro methods:
- ISO 24443:2021 – Determination of UVA Photoprotection
- ISO 23675:2024 – Determination of SPF (Double-Plate Method)
- US FDA – Critical Wavelength Determination
- COLIPA Method – Determination of UVA-PF
- Boots Star Rating – Assessment of UVA-PF
