Answer
Natural daylight treatment with Metvix (methyl aminolevulinate hydrochloride) cream requires SPF30 or higher sunscreen with chemical filters only, without physical filters, applied before lesion preparation to all daylight-exposed areas, including treatment areas.
Sources for this answer
- Metvix 160 mg/g creamGalderma (U.K.) Limited · emc · SmPC §4.4 Special warnings and precautions for use · Version 22Document updated
Sources checked