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Sunscreens made from ground-up wood reach an SPF of over 180

Concerns around common sunscreen chemicals have prompted the search for natural alternatives, with lignin from wood being one of the most promising candidates

By Alice Klein

20 January 2026

The hunt for more natural sunscreens is on

Amparo Garcia/Shutterstock

Sunscreens enhanced with lignin, a component of wood, can have sun protection factors (SPFs) that exceed 180. They also seem to last longer and penetrate less into the skin than existing products, potentially making them safer.

Sunscreens are an important defence against skin cancer, but, in recent years, there has been growing unease and confusion regarding their safety. A recent US survey found that 14 per cent of young adults think that daily sunscreen use is more harmful than direct sun exposure.

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