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Sunscreen testing laboratory · BarcelonaISO 9001 · SGS / ENACCEN-UNE CTN 84/SC 2

Insights

The Photoprotection Brief

Short, evidence-based notes on SPF and UVA testing methods for R&D and regulatory teams. One message per issue, with our own data where we have it.

Issue 01 · HDRS · ISO 23698 · October 2026How many volunteers does an HDRS screening need?Screenings usually run on 3, 4 or 5 volunteers, more by habit than by calculation. We analysed our own data to quantify what each number provides.Read

Newsletter for laboratories

The Photoprotection Brief

A one-minute monthly read on SPF and UVA testing methods, with data from our laboratory. For R&D and regulatory teams.

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